aboutsummaryrefslogblamecommitdiffstats
path: root/lib/stdlib/doc/src/notes.xml
blob: b4d9f9a444edbaeb2e0306224c2a9f43f44de507 (plain) (tree)
1
2
3
4
5
6
7
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386





                                        
                                        







                                                                         
 



                                                                            
 










                                                                            













































































                                                                         




































































































































































                                                                     


































































































































































































































































































                                                                         

































































































































































                                                                         




















































































































































































                                                                     


























































































                                                                       

















                                                                   























































































































                                                                     







































































































































                                                                                                                                                                                              




















































































































































































































































































                                                                       



















                                                                    
                                                                    














































































































































                                                                                    














































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































                                                                          
                                                              



















































































































                                                                                                                                                   










































































































































































































































































































































































































































































































































































































































































































































































































































































































































































                                                                           
<?xml version="1.0" encoding="latin1" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2004</year><year>2012</year>
      <holder>Ericsson AB. All Rights Reserved.</holder>
    </copyright>
    <legalnotice>
      The contents of this file are subject to the Erlang Public License,
      Version 1.1, (the "License"); you may not use this file except in
      compliance with the License. You should have received a copy of the
      Erlang Public License along with this software. If not, it can be
      retrieved online at http://www.erlang.org/.

      Software distributed under the License is distributed on an "AS IS"
      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
      the License for the specific language governing rights and limitations
      under the License.

    </legalnotice>

    <title>STDLIB Release Notes</title>
    <prepared></prepared>
    <docno></docno>
    <date></date>
    <rev></rev>
    <file>notes.xml</file>
  </header>
  <p>This document describes the changes made to the STDLIB application.</p>

<section><title>STDLIB 1.18.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Fixed bug where if given an invalid drive letter on
	    windows ensure dir would go into an infinite loop.</p>
          <p>
	    Own Id: OTP-10104</p>
        </item>
        <item>
          <p>
	    Calls to gen_server:enter_loop/4 where ServerName has a
	    global scope and no timeout is given now works correctly.</p>
          <p>
	    Thanks to Sam Bobroff for reporting the issue.</p>
          <p>
	    Own Id: OTP-10130</p>
        </item>
        <item>
          <p>
	    fix escript/primary archive reloading</p>
          <p>
	    If the mtime of an escript/primary archive file changes
	    after being added to the code path, correctly reload the
	    archive and update the cache. (Thanks to Tuncer Ayaz)</p>
          <p>
	    Own Id: OTP-10151</p>
        </item>
        <item>
          <p>
	    Fix bug that in some cases could cause corrupted binaries
	    in ETS tables with <c>compressed</c> option.</p>
          <p>
	    Own Id: OTP-10182</p>
        </item>
        <item>
          <p>
	    Fix filename:nativename/1 on Win32</p>
          <p>
	    Don't choke on paths given as binary argument on Win32.
	    Thanks to Jan Kl�tzke</p>
          <p>
	    Own Id: OTP-10188</p>
        </item>
        <item>
          <p>
	    Fix bug in <c>ets:test_ms/2</c> that could cause emulator
	    crash when using <c>'$_'</c> in match spec.</p>
          <p>
	    Own Id: OTP-10190</p>
        </item>
        <item>
          <p>
	    Fix bug where zip archives wrongly have a first disk
	    number set to 1</p>
          <p>
	    Own Id: OTP-10223</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p> The message printed by the Erlang shell as an
	    explanation of the <c>badarith</c> error has been
	    corrected. (Thanks to Matthias Lang.) </p>
          <p>
	    Own Id: OTP-10054</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.18.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    References to <c>is_constant/1</c> (which was removed in
	    the R12 release) has been removed from documentation and
	    code.</p>
          <p>
	    Own Id: OTP-6454 Aux Id: seq10407 </p>
        </item>
        <item>
          <p>
	    Leave control back to gen_server during supervisor's
	    restart loop</p>
          <p>
	    When an attempt to restart a child failed, supervisor
	    would earlier keep the execution flow and try to restart
	    the child over and over again until it either succeeded
	    or the restart frequency limit was reached. If none of
	    these happened, supervisor would hang forever in this
	    loop.</p>
          <p>
	    This commit adds a timer of 0 ms where the control is
	    left back to the gen_server which implements the
	    supervisor. This way any incoming request to the
	    supervisor will be handled - which could help breaking
	    the infinite loop - e.g. shutdown request for the
	    supervisor or for the problematic child.</p>
          <p>
	    This introduces some incompatibilities in stdlib due to
	    new return values from supervisor: <list>
	    <item>restart_child/2 can now return
	    {error,restarting}</item> <item>delete_child/2 can now
	    return {error,restarting}</item> <item>which_children/1
	    returns a list of {Id,Child,Type,Mods}, where Child, in
	    addition to the old pid() or 'undefined', now also can be
	    'restarting'.</item> </list></p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9549</p>
        </item>
        <item>
          <p>
	    If a temporary child's start function returned 'ignore',
	    then the supervisor would keep it's child specification.
	    This has been corrected. Child specifications for
	    non-existing temporary children shall never be kept.</p>
          <p>
	    Own Id: OTP-9782 Aux Id: seq11964 </p>
        </item>
        <item>
	    <p> Use universal time as base in error logger
          <p>
	    Previous conversion used the deprecated
	    calendar:local_time_to_universal_time/1 </p></p>
          <p>
	    Own Id: OTP-9854</p>
        </item>
        <item>
	    <p>Calling a guard test (such as is_list/1) from the
	    top-level in a guard, would cause a compiler crash if
	    there was a local definition with the same name.
	    Corrected to reject the program with an error
	    message.</p>
          <p>
	    Own Id: OTP-9866</p>
        </item>
        <item>
          <p>
	    Fix the type spec from the doc of binary:part/3 (Thanks
	    to Ricardo Catalinas Jim�nez)</p>
          <p>
	    Own Id: OTP-9920</p>
        </item>
        <item>
          <p>
	    Correct spelling of registered (Thanks to Richard
	    Carlsson)</p>
          <p>
	    Own Id: OTP-9925</p>
        </item>
        <item>
          <p>
	    Put gb_trees documentation into alphabetical order
	    (Thanks to Aidan Hobson Sayers)</p>
          <p>
	    Own Id: OTP-9929</p>
        </item>
        <item>
          <p>
	    Fix bug in ETS with <c>compressed</c> option and
	    insertion of term containing large integers (>2G) on
	    64-bit machines. Seen to cause emulator crash. (Thanks to
	    Diego Llarrull for excellent bug report)</p>
          <p>
	    Own Id: OTP-9932</p>
        </item>
        <item>
          <p>
	    Add plugin support for alternative name lookup This patch
	    introduces a new way of locating a behaviour instance:
	    {via, Module, Name}. (Thanks to Ulf Wiger)</p>
          <p>
	    Own Id: OTP-9945</p>
        </item>
        <item>
	    <p> The function <c>digraph_utils:condensation/1</c> used
	    to create a digraph containing loops contradicting the
	    documentation which states that the created digraph is
	    free of cycles. This bug has been fixed. (Thanks to
	    Kostis Sagonas for finding the bug.) </p>
          <p>
	    Own Id: OTP-9953</p>
        </item>
        <item>
	    <p> When an escript ends now all printout to standard
	    output and standard error gets out on the terminal. This
	    bug has been corrected by changing the behaviour of
	    erlang:halt/0,1, which should fix the same problem for
	    other escript-like applications, i.e that data stored in
	    the output port driver buffers got lost when printing on
	    a TTY and exiting through erlang:halt/0,1. </p>
	    <p> The BIF:s erlang:halt/0,1 has gotten improved
	    semantics and there is a new BIF erlang:halt/2 to
	    accomplish something like the old semantics. See the
	    documentation. </p>
	    <p> Now erlang:halt/0 and erlang:halt/1 with an integer
	    argument will close all ports and allow all pending async
	    threads operations to finish before exiting the emulator.
	    Previously erlang:halt/0 and erlang:halt(0) would just
	    wait for pending async threads operations but not close
	    ports. And erlang:halt/1 with a non-zero integer argument
	    would not even wait for pending async threads operations.
	    </p>
	    <p> To roughly the old behaviour, to not wait for ports
	    and async threads operations when you exit the emulator,
	    you use erlang:halt/2 with an integer first argument and
	    an option list containing {flush,false} as the second
	    argument. Note that now is flushing not dependant of the
	    exit code, and you can not only flush async threads
	    operations which we deemed as a strange behaviour anyway.
	    </p>
	    <p>Also, erlang:halt/1,2 has gotten a new feature: If the
	    first argument is the atom 'abort' the emulator is
	    aborted producing a core dump, if the operating system so
	    allows. </p>
          <p>
	    Own Id: OTP-9985</p>
        </item>
        <item>
          <p>
	    Add escript win32 alternative invocation. escript can now
	    be started as both "escript.exe" and "escript" (Thanks to
	    Pierre Rouleau)</p>
          <p>
	    Own Id: OTP-9997</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.18</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Improved algorithm in module <c>random</c>. Avoid seed
	    values that are even divisors of the primes and by that
	    prevent getting sub-seeds that are stuck on zero. Worst
	    case was random:seed(0,0,0) that produced a series of
	    only zeros. This is an incompatible change in the sense
	    that applications that relies on reproducing a specific
	    series for a given seed will fail. The pseudo random
	    output is still deterministic but different compared to
	    earlier versions.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8713</p>
        </item>
        <item>
	    <p> Calls to <c>global:whereis_name/1</c> have been
	    substituted for calls to
	    <c>global:safe_whereis_name/1</c> since the latter is not
	    safe at all.</p>
	    <p>The reason for not doing this earlier is that setting
	    a global lock masked out a bug concerning the restart of
	    supervised children. The bug has now been fixed by a
	    modification of <c>global:whereis_name/1</c>. (Thanks to
	    Ulf Wiger for code contribution.)</p>
	    <p>A minor race conditions in <c>gen_fsm:start*</c> has
	    been fixed: if one of these functions returned <c>{error,
	    Reason}</c> or ignore, the name could still be registered
	    (either locally or in <c>global</c>. (This is the same
	    modification as was done for gen_server in OTP-7669.)</p>
	    <p>The undocumented function
	    <c>global:safe_whereis_name/1</c> has been removed. </p>
          <p>
	    Own Id: OTP-9212 Aux Id: seq7117, OTP-4174 </p>
        </item>
        <item>
          <p>
	    If a child of a supervisor terminates with reason
	    {shutdown,Term} it is now handled by the supervisor as if
	    the reason was 'shutdown'. </p>
          <p>
	    For children with restart type 'permanent', this implies
	    no change. For children with restart type 'transient',
	    the child will no longer be restarted and no supervisor
	    report will be written. For children with restart type
	    'temporary', no supervisor report will be written.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9222</p>
        </item>
        <item>
          <p>
	    Minor improvement of documentation regarding supervisor
	    restart strategy for temporary and transient child
	    processes.</p>
          <p>
	    Own Id: OTP-9381</p>
        </item>
        <item>
	    <p>A Dets table with sufficiently large buckets could not
	    always be repaired. This bug has been fixed. </p> <p>The
	    format of Dets files has been modified. When downgrading
	    tables created with the new system will be repaired.
	    Otherwise the modification should not be noticeable. </p>
          <p>
	    Own Id: OTP-9607</p>
        </item>
        <item>
	    <p> A few contracts in the <c>lists</c> module have been
	    corrected. </p>
          <p>
	    Own Id: OTP-9616</p>
        </item>
        <item>
          <p>
	    Add '-callback' attributes in stdlib's behaviours</p>
          <p>
	    Replace the behaviour_info(callbacks) export in stdlib's
	    behaviours with -callback' attributes for all the
	    callbacks. Update the documentation with information on
	    the callback attribute Automatically generate
	    'behaviour_info' function from '-callback' attributes</p>
          <p>
	    'behaviour_info(callbacks)' is a special function that is
	    defined in a module which describes a behaviour and
	    returns a list of its callbacks.</p>
          <p>
	    This function is now automatically generated using the
	    '-callback' specs. An error is returned by lint if user
	    defines both '-callback' attributes and the
	    behaviour_info/1 function. If no type info is needed for
	    a callback use a generic spec for it. Add '-callback'
	    attribute to language syntax</p>
          <p>
	    Behaviours may define specs for their callbacks using the
	    familiar spec syntax, replacing the '-spec' keyword with
	    '-callback'. Simple lint checks are performed to ensure
	    that no callbacks are defined twice and all types
	    referred are declared.</p>
          <p>
	    These attributes can be then used by tools to provide
	    documentation to the behaviour or find discrepancies in
	    the callback definitions in the callback module.</p>
          <p>
	    Add callback specs into 'application' module in kernel
	    Add callback specs to tftp module following internet
	    documentation Add callback specs to inets_service module
	    following possibly deprecated comments</p>
          <p>
	    Own Id: OTP-9621</p>
        </item>
        <item>
	    <p> If a Dets table had been properly closed but the
	    space management data could not been read, it was not
	    possible to repair the file. This bug has been fixed.
	    </p>
          <p>
	    Own Id: OTP-9622</p>
        </item>
        <item>
          <p>
	    The Unicode noncharacter code points 16#FFFE and 16#FFFE
	    were not allowed to be encoded or decoded using the
	    <c>unicode</c> module or bit syntax. That was
	    inconsistent with the other noncharacters 16#FDD0 to
	    16#FDEF that could be encoded/decoded. To resolve the
	    inconsistency, 16#FFFE and 16#FFFE can now be encoded and
	    decoded. (Thanks to Alisdair Sullivan.)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9624</p>
        </item>
        <item>
          <p>
	    Make epp search directory of current file first when
	    including another file This completes a partial fix in
	    R11 that only worked for include_lib(). (Thanks to
	    Richard Carlsson)</p>
          <p>
	    Own Id: OTP-9645</p>
        </item>
        <item>
          <p>
	    ms_transform: Fix incorrect `variable shadowed' warnings</p>
          <p>
	    This patch removes incorrect passing of variable bindings
	    from one function clause to another. (Thanks to Haitao
	    Li)</p>
          <p>
	    Own Id: OTP-9646</p>
        </item>
        <item>
          <p>
	    Explicitly kill dynamic children in supervisors</p>
          <p>
	    According to the supervisor's documentation: "Important
	    note on simple-one-for-one supervisors: The dynamically
	    created child processes of a simple-one-for-one
	    supervisor are not explicitly killed, regardless of
	    shutdown strategy, but are expected to terminate when the
	    supervisor does (that is, when an exit signal from the
	    parent process is received)."</p>
          <p>
	    All is fine as long as we stop simple_one_for_one
	    supervisor manually. Dynamic children catch the exit
	    signal from the supervisor and leave. But, if this
	    happens when we stop an application, after the top
	    supervisor has stopped, the application master kills all
	    remaining processes associated to this application. So,
	    dynamic children that trap exit signals can be killed
	    during their cleanup (here we mean inside terminate/2).
	    This is unpredictable and highly time-dependent.</p>
          <p>
	    In this commit, supervisor module is patched to
	    explicitly terminate dynamic children accordingly to the
	    shutdown strategy.</p>
          <p>
	    NOTE: Order in which dynamic children are stopped is not
	    defined. In fact, this is "almost" done at the same time.</p>
          <p>
	    Stack errors when dynamic children are stopped</p>
          <p>
	    Because a simple_one_for_one supervisor can have many
	    workers, we stack errors during its shutdown to report
	    only one message for each encountered error type. Instead
	    of reporting the child's pid, we use the number of
	    concerned children. (Thanks to Christopher Faulet)</p>
          <p>
	    Own Id: OTP-9647</p>
        </item>
        <item>
          <p>
	    Allow an infinite timeout to shutdown worker processes</p>
          <p>
	    Now, in child specification, the shutdown value can also
	    be set to infinity for worker children. This restriction
	    was removed because this is not always possible to
	    predict the shutdown time for a worker. This is highly
	    application-dependent. Add a warning to docs about
	    workers' shutdown strategy (Thanks to Christopher Faulet)</p>
          <p>
	    Own Id: OTP-9648</p>
        </item>
        <item>
          <p>
	    A badarg would sometimes occur in supervisor when
	    printing error reports and the child pid was undefined.
	    This has been corrected.</p>
          <p>
	    Own Id: OTP-9669</p>
        </item>
        <item>
          <p>
	    Fix re:split spec not to accept option 'global'(Thanks to
	    Shunichi Shinohara)</p>
          <p>
	    Own Id: OTP-9691</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p> Fix a few tests that used to fail on the HiPE
	    platform. </p>
          <p>
	    Own Id: OTP-9637</p>
        </item>
        <item>
	    <p>Variables are now now allowed in '<c>fun M:F/A</c>' as
	    suggested by Richard O'Keefe in EEP-23.</p>
	    <p>The representation of '<c>fun M:F/A</c>' in the
	    abstract format has been changed in an incompatible way.
	    Tools that directly read or manipulate the abstract
	    format (such as parse transforms) may need to be updated.
	    The compiler can handle both the new and the old format
	    (i.e. extracting the abstract format from a pre-R15 BEAM
	    file and compiling it using compile:forms/1,2 will work).
	    The <c>syntax_tools</c> application can also handle both
	    formats.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9643</p>
        </item>
        <item>
          <p>
	    Tuple funs (a two-element tuple with a module name and a
	    function) are now officially deprecated and will be
	    removed in R16. Use '<c>fun M:F/A</c>' instead. To make
	    you aware that your system uses tuple funs, the very
	    first time a tuple fun is applied, a warning will be sent
	    to the error logger.</p>
          <p>
	    Own Id: OTP-9649</p>
        </item>
        <item>
          <p>
	    The deprecated '<c>regexp</c>' module has been removed.
	    Use the '<c>re</c>' module instead.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9737</p>
        </item>
        <item>
          <p>
	    <c>filename:find_src/1,2</c> will now work on stripped
	    BEAM files (reported by Per Hedeland). The HiPE compiler
	    will also work on stripped BEAM files. The BEAM compiler
	    will no longer include compilation options given in the
	    source code itself in <c>M:module_info(compile)</c>
	    (because those options will be applied anyway if the
	    module is re-compiled).</p>
          <p>
	    Own Id: OTP-9752</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.17.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    erl_tar:extract failed when executed inside a directory
	    with some parent directory to which the user has no read
	    access. This has been corrected.</p>
          <p>
	    Own Id: OTP-9368</p>
        </item>
        <item>
	    <p> A bug in <c>erl_scan:set_attribute/3</c> has been
	    fixed. </p>
          <p>
	    Own Id: OTP-9412</p>
        </item>
        <item>
	    <p> The contract of <c>io_lib:fread()</c> has been
	    corrected. </p>
          <p>
	    Own Id: OTP-9413 Aux Id: seq11873 </p>
        </item>
        <item>
          <p>
	    A crash in io_lib:fread/2 when end of input data was
	    encountered while trying to match literal characters,
	    which should return {more,_,_,_} but instead crashed, has
	    been corrected. Reported by Klas Johansson.</p>
          <p>
	    A similar peculiarity for io:fread when encountering end
	    of file before any field data has also been corrected.</p>
          <p>
	    Own Id: OTP-9439</p>
        </item>
        <item>
	    <p> The contract of <c>timer:now_diff()</c> has been
	    corrected. (Thanks to Alex Morarash). </p>
          <p>
	    Own Id: OTP-9450</p>
        </item>
        <item>
          <p>
	    Fix minor typo in gen_fsm documentation (Thanks to Haitao
	    Li)</p>
          <p>
	    Own Id: OTP-9456</p>
        </item>
        <item>
	    <p>The contracts of <c>zip:zip_list_dir/1</c> and
	    <c>zip:zip_get/2</c> have been corrected. </p>
          <p>
	    Own Id: OTP-9471 Aux Id: seq11887, OTP-9472 </p>
        </item>
        <item>
	    <p> A bug in <c>zip:zip_open()</c> has been fixed. </p>
          <p>
	    Own Id: OTP-9472 Aux Id: seq11887, OTP-9471 </p>
        </item>
        <item>
          <p>
	    Fix trivial documentation errors(Thanks to Matthias Lang)</p>
          <p>
	    Own Id: OTP-9498</p>
        </item>
        <item>
          <p>
	    Add a proplist() type</p>
          <p>
	    Recently I was adding specs to an API and found that
	    there is no canonical proplist() type defined. (Thanks to
	    Ryan Zezeski)</p>
          <p>
	    Own Id: OTP-9499</p>
        </item>
        <item>
          <p>
	    fix supervisors restarting temporary children</p>
          <p>
	    In the current implementation of supervisors, temporary
	    children should never be restarted. However, when a
	    temporary child is restarted as part of a one_for_all or
	    rest_for_one strategy where the failing process is not
	    the temporary child, the supervisor still tries to
	    restart it.</p>
          <p>
	    Because the supervisor doesn't keep some of the MFA
	    information of temporary children, this causes the
	    supervisor to hit its restart limit and crash.</p>
          <p>
	    This patch fixes the behaviour by inserting a clause in
	    terminate_children/2-3 (private function) that will omit
	    temporary children when building a list of killed
	    processes, to avoid having the supervisor trying to
	    restart them again.</p>
          <p>
	    Only supervisors in need of restarting children used the
	    list, so the change should be of no impact for the
	    functions that called terminate_children/2-3 only to kill
	    all children.</p>
          <p>
	    The documentation has been modified to make this
	    behaviour more explicit. (Thanks to Fred Hebert)</p>
          <p>
	    Own Id: OTP-9502</p>
        </item>
        <item>
          <p>
	    fix broken edoc annotations (Thanks to Richard Carlsson)</p>
          <p>
	    Own Id: OTP-9516</p>
        </item>
        <item>
	    <p> XML files have been corrected. </p>
          <p>
	    Own Id: OTP-9550 Aux Id: OTP-9541 </p>
        </item>
        <item>
          <p>
	    Handle rare race in the crypto key server functionality</p>
          <p>
	    Own Id: OTP-9586</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p> Types and specifications have been added. </p>
          <p>
	    Own Id: OTP-9356</p>
        </item>
        <item>
	    <p> The contracts of the <c>queue</c> module have been
	    modified. </p>
          <p>
	    Own Id: OTP-9418</p>
        </item>
        <item>
	    <p> Contracts in STDLIB and Kernel have been improved and
	    type errors have been corrected. </p>
          <p>
	    Own Id: OTP-9485</p>
        </item>
        <item>
          <p>
	    Types for several BIFs have been extended/corrected. Also
	    the types for types for <c>lists:keyfind/3</c>,
	    <c>lists:keysearch/3</c>, and <c>lists:keyemember/3</c>
	    have been corrected. The incorrect/incomplete types could
	    cause false dialyzer warnings.</p>
          <p>
	    Own Id: OTP-9496</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.17.4</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p> The default value <c>undefined</c> was added to
	    records field types in such a way that the result was not
	    always a well-formed type. This bug has been fixed. </p>
          <p>
	    Own Id: OTP-9147</p>
        </item>
        <item>
          <p>
	    Update index file atomically</p>
          <p>
	    Since the log_mf_h index file might be read by other
	    processes than the error handler (e.g. by the rb tool),
	    this file should be updated atomically. This will avoid
	    hitting the time gap between opening the file in write
	    mode (and thus emptying the file) and the actual update
	    with the new contents. To do this, a temporary file is
	    written, and the file:rename/1 used to replace the real
	    index file.</p>
          <p>
	    Own Id: OTP-9148</p>
        </item>
        <item>
          <p>
	    Fixed various typos across the documentation (Thanks to
	    Tuncer Ayaz)</p>
          <p>
	    Own Id: OTP-9154</p>
        </item>
        <item>
          <p>
	    Supervisors should not save child-specs for temporary
	    processes when they terminate as they should not be
	    restarted. Saving the temporary child spec will result in
	    that you can not start a new temporary process with the
	    same child spec as an already terminated temporary
	    process. Since R14B02 you can not restart a temporary
	    temporary process as arguments are no longer saved, it
	    has however always been semantically incorrect to restart
	    a temporary process. Thanks to Filipe David Manana for
	    reporting this and suggesting a solution.</p>
          <p>
	    Own Id: OTP-9167 Aux Id: OTP-9064 </p>
        </item>
        <item>
          <p>
	    Various small documentation fixes (Thanks to Bernard
	    Duggan)</p>
          <p>
	    Own Id: OTP-9172</p>
        </item>
        <item>
          <p>
	    Fix format_status bug for unregistered gen_event
	    processes</p>
          <p>
	    Port the gen_fsm code for format_status to gen_event in
	    order to prevent a lists:concat([...,pid()]) crash when
	    calling sys:get_status/1 on an unregistered gen_event
	    process.</p>
          <p>
	    Refactor format_status header code from gen_* behaviours
	    to module gen.</p>
          <p>
	    Extend the format_status tests in gen_event_SUITE to
	    cover format_status bugs with anonymous gen_event
	    processes. (Thanks To Geoff Cant)</p>
          <p>
	    Own Id: OTP-9218</p>
        </item>
        <item>
          <p>
	    List of pids changed to 'set' in supervisor for dynamic
	    temporary children. Accessing the list would not scale
	    well when adding/deleting many children. (Thanks to
	    Evgeniy Khramtsov)</p>
          <p>
	    Own Id: OTP-9242</p>
        </item>
        <item>
          <p>
	    Change pool module to attempt to attach to nodes that are
	    already running</p>
          <p>
	    The pool module prints out an error message and takes no
	    further action for nodes that are already running. This
	    patch changes that behavior so that if the return from
	    slave:start/3 is {already_running, Node} then an attempt
	    to attach to the node is still made. This makes sense
	    because the node has been specified by the user in the
	    .hosts.erlang file indicating a wish for the node to be
	    part of the pool and a manual attach can be successfully
	    made after the pool is started.(Thanks to Kelly
	    McLaughlin)</p>
          <p>
	    Own Id: OTP-9244</p>
        </item>
        <item>
          <p>
	    unicode: document 16#FFFE and 16#FFFF (non chars)(Thanks
	    to Tuncer Ayaz)</p>
          <p>
	    Own Id: OTP-9256</p>
        </item>
        <item>
          <p>
	    re: remove gratuitous "it " in manpage (Thanks to Tuncer
	    Ayaz)</p>
          <p>
	    Own Id: OTP-9307</p>
        </item>
        <item>
	    <p> A bug in erl_eval(3) has been fixed. </p>
          <p>
	    Own Id: OTP-9322</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Add <c>timer:tc/1</c> and remove the catch in <c>tc/2</c>
	    and <c>tc/3</c>. The time measuring functions will thus
	    no longer trap exits, errors or throws caused by the
	    measured function.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9169</p>
        </item>
        <item>
          <p>
	    Allow supervisor:terminate_child(SupRef,Pid) for
	    simple_one_for_one supervisors</p>
          <p>
	    supervisor:terminate_child/2 was earlier not allowed if
	    the supervisor used restart strategy simple_one_for_one.
	    This is now changed so that children of this type of
	    supervisors can be terminated by specifying the child's
	    Pid.</p>
          <p>
	    (Thanks to Vance Shipley.)</p>
          <p>
	    Own Id: OTP-9201</p>
        </item>
        <item>
	    <p> Types and specifications have been added. </p>
          <p>
	    Own Id: OTP-9267</p>
        </item>
        <item>
	    <p> Erlang types and specifications are used for
	    documentation. </p>
          <p>
	    Own Id: OTP-9271</p>
        </item>
        <item>
	    <p>Allow Dets tablenames to be arbitrary terms.</p>
          <p>
	    Own Id: OTP-9282</p>
        </item>
        <item>
	    <p> A specification that could cause problems for
	    Dialyzer has been fixed. An opaque type in erl_eval has
	    been turned in to a ordinary type. This is a temporary
	    fix. </p>
          <p>
	    Own Id: OTP-9333</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.17.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Two bugs in io:format for ~F.~Ps has been corrected. When
	    length(S) >= abs(F) > P, the precision P was incorrectly
	    ignored. When F == P > lenght(S) the result was
	    incorrectly left adjusted. Bug found by Ali Yakout who
	    also provided a fix.</p>
          <p>
	    Own Id: OTP-8989 Aux Id: seq11741 </p>
        </item>
        <item>
	    <p>Fix exception generation in the io module
          <p>
	    Some functions did not generate correct badarg exception
	    on a badarg exception.</p></p>
          <p>
	    Own Id: OTP-9045</p>
        </item>
        <item>
          <p>
	    Fixes to the dict and orddict module documentation</p>
          <p>
	    Fixed grammar and one inconsistency (Key - Value instead
	    of key/value, since everywhere else the former is used).
	    (thanks to Filipe David Manana)</p>
          <p>
	    Own Id: OTP-9083</p>
        </item>
        <item>
          <p>
	    Add ISO week number calculation functions to the calendar
	    module in stdlib</p>
          <p>
	    This new feature adds the missing week number function to
	    the calendar module of the stdlib application. The
	    implementation conforms to the ISO 8601 standard. The new
	    feature has been implemented tested and documented
	    (thanks to Imre Horvath).</p>
          <p>
	    Own Id: OTP-9087</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Implement the 'MAY' clauses from RFC4648 regarding the
	    pad character to make mime_decode() and
	    mime_decode_to_string() functions more tolerant of badly
	    padded base64. The RFC is quoted below for easy
	    reference.</p>
          <p>
	    "RFC4648 Section 3.3 with reference to MIME decoding:
	    Furthermore, such specifications MAY ignore the pad
	    character, "=", treating it as non-alphabet data, if it
	    is present before the end of the encoded data. If more
	    than the allowed number of pad characters is found at the
	    end of the string (e.g., a base 64 string terminated with
	    "==="), the excess pad characters MAY also be ignored."</p>
          <p>
	    Own Id: OTP-9020</p>
        </item>
        <item>
          <p>
	    Supervisors will no longer save start parameters for
	    temporary processes as they will not be restarted. In the
	    case of simple_one_for_one workers such as ssl-connection
	    processes this will substantial reduce the memory
	    footprint of the supervisor.</p>
          <p>
	    Own Id: OTP-9064</p>
        </item>
        <item>
          <p>
	    When running escript it is now possible to add the -n
	    flag and the escript will be compiled using +native.</p>
          <p>
	    Own Id: OTP-9076</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.17.2.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Several type specifications for standard libraries were
	    wrong in the R14B01 release. This is now corrected. The
	    corrections concern types in re,io,filename and the
	    module erlang itself.</p>
          <p>
	    Own Id: OTP-9008</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.17.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p> When several clients accessed a Dets table
	    simultaneously, one of them calling
	    <c>dets:insert_new/2</c>, the Dets server could crash.
	    Alternatively, under the same conditions, <c>ok</c> was
	    sometimes returned instead of <c>true</c>. (Thanks to
	    John Hughes.) </p>
          <p>
	    Own Id: OTP-8856</p>
        </item>
        <item>
	    <p> When several clients accessed a Dets table
	    simultaneously, inserted or updated objects were
	    sometimes lost due to the Dets file being truncated.
	    (Thanks to John Hughes.) </p>
          <p>
	    Own Id: OTP-8898</p>
        </item>
        <item>
	    <p> When several clients accessed a Dets table
	    simultaneously, modifications of the Dets server's
	    internal state were sometimes thrown away. The symptoms
	    are diverse: error with reason <c>bad_object</c>;
	    inserted objects not returned by <c>lookup()</c>; et
	    cetera. (Thanks to John Hughes.) </p>
          <p>
	    Own Id: OTP-8899</p>
        </item>
        <item>
	    <p> If a Dets table was closed after calling
	    <c>bchunk/2</c>, <c>match/1,3</c>,
	    <c>match_object/1,3</c>, or <c>select/1,3</c> and then
	    opened again, a subsequent call using the returned
	    continuation would normally return a reply. This bug has
	    fixed; now the call fails with reason <c>badarg</c>. </p>
          <p>
	    Own Id: OTP-8903</p>
        </item>
        <item>
	    <p> Cover did not collect coverage data for files such as
	    Yecc parses containing include directives. The bug has
	    been fixed by modifying <c>epp</c>, the Erlang Code
	    Preprocessor. </p>
          <p>
	    Own Id: OTP-8911</p>
        </item>
        <item>
	    <p> If a Dets table with fewer slots than keys was opened
	    and then closed after just a lookup, the contents were no
	    longer well-formed. This bug has been fixed. (Thanks to
	    Matthew Evans.) </p>
          <p>
	    Own Id: OTP-8923</p>
        </item>
        <item>
          <p>
	    In a supervisor, when it terminates a child, if that
	    child happens to have exited fractionally early, with
	    normal, the supervisor reports this as an error. This
	    should not be reported as an error.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8938 Aux Id: seq11615 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The documentation filelib:wildcard/1,2 now describes the
	    character set syntax for wildcards.</p>
          <p>
	    Own Id: OTP-8879 Aux Id: seq11683 </p>
        </item>
        <item>
	    <p>Buffer overflows have been prevented in <c>erlc</c>,
	    <c>dialyzer</c>, <c>typer</c>, <c>run_test</c>,
	    <c>heart</c>, <c>escript</c>, and <c>erlexec</c>.</p>
	    (Thanks to Michael Santos.)
          <p>
	    Own Id: OTP-8892</p>
        </item>
        <item>
          <p>
	    Using a float for the number of copies for
	    <c>string:copies/2</c> resulted in an infinite loop. Now
	    it will fail with an exception instead. (Thanks to
	    Michael Santos.)</p>
          <p>
	    Own Id: OTP-8915</p>
        </item>
        <item>
          <p>
	    New ETS option <c>compressed</c>, to enable a more
	    compact storage format at the expence of heavier table
	    operations. For test and evaluation, <c>erl +ec</c> can
	    be used to force compression on all ETS tables.</p>
          <p>
	    Own Id: OTP-8922 Aux Id: seq11658 </p>
        </item>
        <item>
	    <p> The default maximum number of slots of a Dets table
	    has been changed as to be equal to the maximum number of
	    slots. (Thanks to Richard Carlsson.) </p>
          <p>
	    Own Id: OTP-8959</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.17.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>reference() has been substituted for ref() in the
	    documentation.</p>
          <p>
	    Own Id: OTP-8733</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The ms_transform now warns if the fun head shadows
	    surrounding variables (just like the warnings you would
	    get for an ordinary fun in the same context).</p>
          <p>
	    Own Id: OTP-6759</p>
        </item>
        <item>
          <p>
	    ets:select_reverse/{1,2,3} are now documented.</p>
          <p>
	    Own Id: OTP-7863</p>
        </item>
        <item>
          <p>
	    Large parts of the <c>ethread</c> library have been
	    rewritten. The <c>ethread</c> library is an Erlang
	    runtime system internal, portable thread library used by
	    the runtime system itself.</p>
          <p>
	    Most notable improvement is a reader optimized rwlock
	    implementation which dramatically improve the performance
	    of read-lock/read-unlock operations on multi processor
	    systems by avoiding ping-ponging of the rwlock cache
	    lines. The reader optimized rwlock implementation is used
	    by miscellaneous rwlocks in the runtime system that are
	    known to be read-locked frequently, and can be enabled on
	    ETS tables by passing the <seealso
	    marker="stdlib:ets#new_2_read_concurrency">{read_concurrency,
	    true}</seealso> option upon table creation. See the
	    documentation of <seealso
	    marker="stdlib:ets#new/2">ets:new/2</seealso> for more
	    information. The reader optimized rwlock implementation
	    can be fine tuned when starting the runtime system. For
	    more information, see the documentation of the <seealso
	    marker="erts:erl#+rg">+rg</seealso> command line argument
	    of <c>erl</c>.</p>
          <p>
	    There is also a new implementation of rwlocks that is not
	    optimized for readers. Both implementations interleaves
	    readers and writers during contention as opposed to,
	    e.g., the NPTL (Linux) pthread rwlock implementation
	    which use either a reader or writer preferred strategy.
	    The reader/writer preferred strategy is problematic since
	    it starves threads doing the non-preferred operation.</p>
          <p>
	    The new rwlock implementations in general performs better
	    in ERTS than common pthread implementations. However, in
	    some extremely heavily contended cases this is not the
	    case. Such heavy contention can more or less only appear
	    on ETS tables. This when multiple processes do very large
	    amounts of write locked operations simultaneously on the
	    same table. Such use of ETS is bad regardless of rwlock
	    implementation, will never scale, and is something we
	    strongly advise against.</p>
          <p>
	    The new rwlock implementations depend on atomic
	    operations. If no native atomic implementation is found,
	    a fallback solution will be used. Using the fallback
	    implies a performance degradation. That is, it is more
	    important now than before to build OTP with a native
	    atomic implementation.</p>
          <p>
	    The <c>ethread</c> library contains native atomic
	    implementations for, x86 (32 and 64 bit), powerpc (32
	    bit), sparc V9 (32 and 64 bit), and tilera (32 bit). On
	    other hardware gcc's builtin support for atomic memory
	    access will be used if such exists. If no such support is
	    found, <c>configure</c> will warn about no atomic
	    implementation available.</p>
          <p>
	    The <c>ethread</c> library can now also use the
	    <c>libatomic_ops</c> library for atomic memory accesses.
	    This makes it possible for the Erlang runtime system to
	    utilize optimized native atomic operations on more
	    platforms than before. If <c>configure</c> warns about no
	    atomic implementation available, try using the
	    <c>libatomic_ops</c> library. Use the <seealso
	    marker="doc/installation_guide:INSTALL#How-to-Build-and-Install-ErlangOTP_A-Closer-Look-at-the-individual-Steps_Configuring">--with-libatomic_ops=PATH</seealso>
	    <c>configure</c> command line argument when specifying
	    where the <c>libatomic_ops</c> installation is located.
	    The <c>libatomic_ops</c> library can be downloaded from:
	    <url
	    href="http://www.hpl.hp.com/research/linux/atomic_ops/">http://www.hpl.hp.com/research/linux/atomic_ops/</url></p>
          <p>
	    The changed API of the <c>ethread</c> library has also
	    caused modifications in the Erlang runtime system.
	    Preparations for the to come "delayed deallocation"
	    feature has also been done since it depends on the
	    <c>ethread</c> library.</p>
          <p>
	    <em>Note</em>: When building for x86, the <c>ethread</c>
	    library will now use instructions that first appeared on
	    the pentium 4 processor. If you want the runtime system
	    to be compatible with older processors (back to 486) you
	    need to pass the <seealso
	    marker="doc/installation_guide:INSTALL#How-to-Build-and-Install-ErlangOTP_A-Closer-Look-at-the-individual-Steps_Configuring">--enable-ethread-pre-pentium4-compatibility</seealso>
	    <c>configure</c> command line argument when configuring
	    the system.</p>
          <p>
	    Own Id: OTP-8544</p>
        </item>
        <item>
          <p>
	    Some Built In Functions (BIFs) from the module erlang was
	    never made autoimported for backward compatibility
	    reasons. As local functions now override autoimports, new
	    autoimports is no longer a problem, why the following
	    BIFs are finally made autoimported: monitor/2, monitor/3,
	    demonitor/2, demonitor/3, error/1, error/2,
	    integer_to_list/2, list_to_integer/2.</p>
          <p>
	    Own Id: OTP-8763</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.17</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>The Erlang code preprocessor (<c>epp</c>) sent extra
	    messages on the form <c>{eof,Location}</c> to the client
	    when parsing the <c>file</c> attribute. This bug,
	    introduced in R11B, has been fixed.</p>
          <p>
	    Own Id: OTP-8470</p>
        </item>
        <item>
	    <p>The abstract type 'fun' could not be printed by the
	    Erlang pretty printer (<c>erl_pp</c>). This bug has been
	    fixed.</p>
          <p>
	    Own Id: OTP-8473</p>
        </item>
        <item>
	    <p>The function <c>erl_scan:reserved_word/1</c> no longer
	    returns <c>true</c> when given the word <c>spec</c>. This
	    bug was introduced in STDLIB-1.15.3 (R12B-3).</p>
          <p>
	    Own Id: OTP-8567</p>
        </item>
        <item>
	    <p>The documentation of <c>lists:keysort/2</c> states
	    that the sort is stable.</p>
          <p>
	    Own Id: OTP-8628 Aux Id: seq11576 </p>
        </item>
        <item>
          <p>
	    The shell's line editing has been improved to more
	    resemble the behaviour of readline and other shells.
	    (Thanks to Dave Peticolas)</p>
          <p>
	    Own Id: OTP-8635</p>
        </item>
        <item>
	    <p>The Erlang code preprocessor (<c>epp</c>) did not
	    correctly handle premature end-of-input when defining
	    macros. This bug, introduced in STDLIB 1.16, has been
	    fixed.</p>
          <p>
	    Own Id: OTP-8665 Aux Id: OTP-7810 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The module binary from EEP31 (and EEP9) is implemented.</p>
          <p>
	    Own Id: OTP-8217</p>
        </item>
        <item>
	    <p>The erlang pretty printer (<c>erl_pp</c>) no longer
	    quotes atoms in types.</p>
          <p>
	    Own Id: OTP-8501</p>
        </item>
        <item>
	    <p>The Erlang code preprocessor (<c>epp</c>) now
	    considers records with no fields as typed.</p>
          <p>
	    Own Id: OTP-8503</p>
        </item>
        <item>
          <p>
	    Added function <c>zip:foldl/3</c> to iterate over zip
	    archives.</p>
          <p>
	    Added functions to create and extract escripts. See
	    <c>escript:create/2</c> and <c>escript:extract/2</c>.</p>
          <p>
	    The undocumented function <c>escript:foldl/3</c> has been
	    removed. The same functionality can be achieved with the
	    more flexible functions <c>escript:extract/2</c> and
	    <c>zip:foldl/3</c>.</p>
          <p>
	    Record fields has been annotated with type info. Source
	    files as been adapted to fit within 80 chars and trailing
	    whitespace has been removed.</p>
          <p>
	    Own Id: OTP-8521</p>
        </item>
        <item>
	    <p>The Erlang parser no longer duplicates the singleton
	    type <c>undefined</c> in the type of record fields
	    without initial value.</p>
          <p>
	    Own Id: OTP-8522</p>
        </item>
        <item>
	    <p>A regular expression with many levels of parenthesis
	    could cause a buffer overflow. That has been corrected.
	    (Thanks to Michael Santos.)</p>
          <p>
	    Own Id: OTP-8539</p>
        </item>
        <item>
	    <p>When defining macros the closing right parenthesis
	    before the dot is now mandatory.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8562</p>
        </item>
        <item>
          <p>
	    Some properties of a compiled re pattern are defined to
	    allow for guard tests.</p>
          <p>
	    Own Id: OTP-8577</p>
        </item>
        <item>
	    <p>Local and imported functions now override the
	    auto-imported BIFs when the names clash. The pre R14
	    behaviour was that auto-imported BIFs would override
	    local functions. To avoid that old programs change
	    behaviour, the following will generate an error:</p>
	    <list><item><p>Doing a call without explicit module name
	    to a local function having a name clashing with the name
	    of an auto-imported BIF that was present (and
	    auto-imported) before OTP R14A</p></item>
	    <item><p>Explicitly importing a function having a name
	    clashing with the name of an autoimported BIF that was
	    present (and autoimported) before OTP R14A</p></item>
	    <item><p>Using any form of the old compiler directive
	    <c>nowarn_bif_clash</c></p></item> </list> <p>If the BIF
	    was added or auto-imported in OTP R14A or later,
	    overriding it with an import or a local function will
	    only result in a warning,</p> <p>To resolve clashes, you
	    can either use the explicit module name <c>erlang</c> to
	    call the BIF, or you can remove the auto-import of that
	    specific BIF by using the new compiler directive
	    <c>-compile({no_auto_import,[F/A]}).</c>, which makes all
	    calls to the local or imported function without explicit
	    module name pass without warnings or errors.</p> <p>The
	    change makes it possible to add auto-imported BIFs
	    without breaking or silently changing old code in the
	    future. However some current code ingeniously utilizing
	    the old behaviour or the <c>nowarn_bif_clash</c> compiler
	    directive, might need changing to be accepted by the
	    compiler.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8579</p>
        </item>
        <item>
	    <p>The undocumented, unsupport, and deprecated function
	    <c>lists:flat_length/1</c> has been removed.</p>
          <p>
	    Own Id: OTP-8584</p>
        </item>
        <item>
          <p>
	    A bug in re that could cause certain regular expression
	    matches never to terminate is corrected. (Thanks to
	    Michael Santos and Gordon Guthrie.)</p>
          <p>
	    Own Id: OTP-8589</p>
        </item>
        <item>
	    <p>Nested records can now be accessed without
	    parenthesis. See the Reference Manual for examples.
	    (Thanks to YAMASHINA Hio and Tuncer Ayaz.)</p>
          <p>
	    Own Id: OTP-8597</p>
        </item>
        <item>
	    <p><c>receive</c> statements that can only read out a
	    newly created reference are now specially optimized so
	    that it will execute in constant time regardless of the
	    number of messages in the receive queue for the process.
	    That optimization will benefit calls to
	    <c>gen_server:call()</c>. (See <c>gen:do_call/4</c> for
	    an example of a receive statement that will be
	    optimized.)</p>
          <p>
	    Own Id: OTP-8623</p>
        </item>
        <item>
	    <p>The beam_lib:cmp/2 function now compares BEAM files in
	    stricter way. The BEAM files will be considered different
	    if there are any changes except in the compilation
	    information ("CInf") chunk. beam_lib:cmp/2 used to ignore
	    differences in the debug information (significant for
	    Dialyzer) and other chunks that did not directly change
	    the run-time behavior.</p>
          <p>
	    Own Id: OTP-8625</p>
        </item>
        <item>
          <p>
	    When a gen_server, gen_fsm process, or gen_event
	    terminates abnormally, sometimes the text representation
	    of the process state can occupy many lines of the error
	    log, depending on the definition of the state term. A
	    mechanism to trim out parts of the state from the log has
	    been added (using a format_status/2 callback). See the
	    documentation.</p>
          <p>
	    Own Id: OTP-8630</p>
        </item>
        <item>
          <p>
	    Calling <c>sys:get_status()</c> for processes that have
	    globally registered names that were not atoms would cause
	    a crash. Corrected. (Thanks to Steve Vinoski.)</p>
          <p>
	    Own Id: OTP-8656</p>
        </item>
        <item>
	    <p>The Erlang scanner has been augmented with two new
	    tokens: <c>..</c> and <c>...</c>.</p>
          <p>
	    Own Id: OTP-8657</p>
        </item>
        <item>
	    <p>Expressions evaluating to integers can now be used in
	    types and function specifications where hitherto only
	    integers were allowed ("Erlang_Integer").</p>
          <p>
	    Own Id: OTP-8664</p>
        </item>
        <item>
	    <p>The compiler optimizes record operations better.</p>
          <p>
	    Own Id: OTP-8668</p>
        </item>
        <item>
          <p>
	    The recently added BIFs erlang:min/2, erlang:max/2 and
	    erlang:port_command/3 are now auto-imported (as they were
	    originally intended to be). Due to the recent compiler
	    change (OTP-8579), the only impact on old code defining
	    it's own min/2, max/2 or port_command/3 functions will be
	    a warning, the local functions will still be used. The
	    warning can be removed by using
	    -compile({no_auto_import,[min/2,max/2,port_command/3]}).
	    in the source file.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8669 Aux Id: OTP-8579 </p>
        </item>
        <item>
          <p>
	    Now, binary_to_term/2 is auto-imported. This will cause a
	    compile warning if and only if a module has got a local
	    function with that name.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8671</p>
        </item>
        <item>
          <p>
	    The predefined builtin type tid() has been removed.
	    Instead, ets:tid() should be used.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8687</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.16.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Because of a race condition, using filelib:ensure_dir/1
	    from multiple processes to create the same path or parts
	    of the same directory structure, filelib:ensure_dir/1
	    could return a meaningless {error,eexist}. That race
	    condition has been eliminated, and {error,eexist} will
	    now be returned only if there exists a regular file,
	    device file, or some other non-directory file with the
	    same name. (Thanks to Tuncer Ayaz.)</p>
          <p>
	    Own Id: OTP-8389</p>
        </item>
        <item>
	    <p>A number of bugs concerning re and unicode are
	    corrected:</p>
	    <p>re:compile no longer loses unicode option, which also
	    fixes bug in re:split.</p>
	    <p>re:replace now handles unicode charlist replacement
	    argument</p>
	    <p>re:replace now handles unicode RE charlist argument
	    correctly</p>
	    <p>re:replace now handles binary unicode output correctly
	    when nothing is replaced.</p>
	    <p>Most code, testcases and error isolation done by Rory
	    Byrne.</p>
          <p>
	    Own Id: OTP-8394</p>
        </item>
        <item>
          <p>
	    The loading of native code was not properly atomic in the
	    SMP emulator, which could cause crashes. Also a per-MFA
	    information table for the native code has now been
	    protected with a lock since it turns that it could be
	    accessed concurrently in the SMP emulator. (Thanks to
	    Mikael Pettersson.)</p>
          <p>
	    Own Id: OTP-8397</p>
        </item>
        <item>
          <p>
	    user.erl (used in oldshell) is updated to handle unicode
	    in prompt strings (io:get_line/{1,2}). io_lib is also
	    updated to format prompts with the 't' modifier (i.e. ~ts
	    instead of ~s).</p>
          <p>
	    Own Id: OTP-8418 Aux Id: OTP-8393 </p>
        </item>
        <item>
          <p>
	    The re module: A regular expression with an option change
	    at the start of a pattern that had top-level alternatives
	    could cause overwriting and/or a crash. (Thanks to
	    Michael Santos.)</p>
          <p>
	    Own Id: OTP-8438</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The ability for the gen_server and gen_fsm callback
	    modules to format their own state for display under the
	    sys:get_status/1,2 calls has been restored and
	    documented. (Thanks to Steve Vinoski.)</p>
          <p>
	    Own Id: OTP-8324</p>
        </item>
        <item>
          <p>
	    c:nc/{1,2} used to assume that the beam file was created
	    in the same directory as the source code and failed to
	    load the code if it was not. Corrected to look for the
	    beam file in the current directory or in the directory
	    specified by the <c>{outdir,Dir}</c> option. (Thanks to
	    Alex Suraci.)</p>
          <p>
	    Own Id: OTP-8337</p>
        </item>
        <item>
	    <p>The documentation is now possible to build in an open
	    source environment after a number of bugs are fixed and
	    some features are added in the documentation build
	    process. </p>
	    <p>- The arity calculation is updated.</p>
	    <p>- The module prefix used in the function names for
	    bif's are removed in the generated links so the links
	    will look like
	    "http://www.erlang.org/doc/man/erlang.html#append_element-2"
	    instead of
	    "http://www.erlang.org/doc/man/erlang.html#erlang:append_element-2".</p>
	    <p>- Enhanced the menu positioning in the html
	    documentation when a new page is loaded.</p>
	    <p>- A number of corrections in the generation of man
	    pages (thanks to Sergei Golovan)</p>
	    <p>- The legal notice is taken from the xml book file so
	    OTP's build process can be used for non OTP
	    applications.</p>
          <p>
	    Own Id: OTP-8343</p>
        </item>
        <item>
          <p>
	    Shell tab completion now works for quoted module and
	    function names. (Thanks to Ulf Wiger.)</p>
          <p>
	    Own Id: OTP-8383</p>
        </item>
        <item>
          <p>
	    Explicit top directories in archive files are now
	    optional.</p>
          <p>
	    For example, if an archive (app-vsn.ez) just contains an
	    app-vsn/ebin/mod.beam file, the file info for the app-vsn
	    and app-vsn/ebin directories are faked using the file
	    info from the archive file as origin. The virtual
	    direcories can also be listed. For short, the top
	    directories are virtual if they does not exist.</p>
          <p>
	    Own Id: OTP-8387</p>
        </item>
        <item>
	    <p>Macros overloading has been implemented. (Thanks to
	    Christopher Faulet.)</p>
          <p>
	    Own Id: OTP-8388</p>
        </item>
        <item>
	    <p>The new function <c>shell:prompt_func/1</c> and the
	    new application configuration parameter
	    <c>shell_prompt_func</c> can be used for customizing the
	    Erlang shell prompt.</p>
          <p>
	    Own Id: OTP-8393</p>
        </item>
        <item>
          <p>
	    Improved handling of typed records in escripts</p>
          <p>
	    Own Id: OTP-8434</p>
        </item>
        <item>
          <p>
	    Added supervisor:count_children/1 to count the number of
	    children being managed without the memory impact of
	    which_children/1. (Thanks to Jay Nelson.)</p>
          <p>
	    Own Id: OTP-8436</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.16.4</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The documentation is now built with open source tools
	    (xsltproc and fop) that exists on most platforms. One
	    visible change is that the frames are removed.</p>
          <p>
	    Own Id: OTP-8201</p>
        </item>
        <item>
          <p>
	    [escript] The restriction that the first line in escripts
	    must begin with <c>#!</c> has been removed.</p>
          <p>
	    [escript] Some command line options to the escript
	    executable has now been documented. For example you can
	    run an escript in the debugger by just adding a command
	    line option.</p>
          <p>
	    [escript] The documentation of the escript header syntax
	    has been clarified. For example the header is optional.
	    This means that it is possible to directly "execute"
	    <c>.erl</c>, <c>.beam</c> and<c>.zip</c> files.</p>
          <p>
	    Own Id: OTP-8215</p>
        </item>
        <item>
	    <p>Optimized array:from_orddict/1, it is now faster and
	    uses less memory if the orddict was sparse.</p>
	    <p>Changed array:reset/2, it will now never expand the
	    array which it could before for non fixed arrays. See the
	    documentation.</p>
          <p>
	    Own Id: OTP-8216</p>
        </item>
        <item>
	    <p>The Erlang Pretty Printer (<c>erl_pp</c>) now puts the
	    leading <c>[</c> of list comprehensions as well as the
	    leading <c>&lt;&lt;</c> of bit string comprehensions on a
	    separate line in order to expose the Cover counter of the
	    template.</p>
          <p>
	    Own Id: OTP-8227</p>
        </item>
        <item>
	    <p>The extension ".xrl" used for Leex input files is now
	    recognized by the compiler.</p>
          <p>
	    Own Id: OTP-8232</p>
        </item>
        <item>
          <p>
	    Some clarifications have been made in the documentation
	    regarding <c>gen_server</c>, <c>gen_fsm</c>, and
	    <c>gen_event</c> behavior when handling <c>'EXIT'</c>
	    messages from the parent process. For more information
	    see the <seealso
	    marker="gen_server">gen_server(3)</seealso>, <seealso
	    marker="gen_fsm">gen_fsm(3)</seealso>, and <seealso
	    marker="gen_event">gen_event(3)</seealso> documentation.</p>
          <p>
	    Own Id: OTP-8255 Aux Id: seq11419 </p>
        </item>
        <item>
	    <p>The -on_load() directive can be used to run a function
	    when a module is loaded. It is documented in the section
	    about code loading in the Reference Manual.</p>
          <p>
	    Own Id: OTP-8295</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.16.3.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            An erroneous type spec for <c>gen:start/6</c> caused
            dialyzer to erroneously issue warnings when
            <c>{spawn_opt, SpawnOptionList}</c> was passed in the
            option list to the <c>gen_server</c> and <c>gen_fsm</c>
            start functions.</p>
          <p>
            Own Id: OTP-8068 Aux Id: seq11323, seq11314 </p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.16.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>The linter used to crash on invalid <c>-opaque</c>
	    declarations.</p>
          <p>
	    Own Id: OTP-8051</p>
        </item>
        <item>
	    <p>Bugs in <c>digraph:add_edge/5</c> and
	    <c>digraph:del_path/3</c> have been fixed. (Thanks to
	    Crystal Din.)</p>
          <p>
	    Own Id: OTP-8066</p>
        </item>
        <item>
	    <p>When trying to insert objects with
	    <c>dets:insert_new()</c> into a Dets table of type
	    <c>duplicate_bag</c>, already existing objects would
	    sometimes be duplicated. This bug has been fixed. (Thanks
	    to Crystal Din.)</p>
          <p>
	    Own Id: OTP-8070</p>
        </item>
        <item>
          <p>
	    Running erlc in a very deep directory (with a path length
	    of more 256 or more characters) would cause the emulator
	    to crash in a call to <c>list_to_atom/1</c>. (Thanks to
	    Chris Newcombe.)</p>
          <p>
	    Own Id: OTP-8124</p>
        </item>
        <item>
	    <p>A few minor bugs have been fixed in the Erlang Code
	    Preprocessor (<c>epp</c>).</p>
          <p>
	    Own Id: OTP-8130</p>
        </item>
        <item>
	    <p>A bug in The Erlang Meta Interpreter (<c>erl_eval</c>)
	    has been fixed: exceptions generated in the template of
	    bit string comprehensions were not handled properly.
	    (Thanks to Ulf Wiger.)</p>
          <p>
	    Own Id: OTP-8133</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Option <c>{capture,none}</c> was missing in documentation
	    for <c>re:run/3</c>.</p>
          <p>
	    Own Id: OTP-8113</p>
        </item>
        <item>
	    <p>When <c>erl_scan:tokens()</c> returns an error tuple
	    <c>{error, ErrorInfo, EndLocation</c>}, the list
	    <c>LeftOverChars</c> is the remaining characters of the
	    input data, starting from <c>EndLocation</c>. It used to
	    be the empty list.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8129</p>
        </item>
        <item>
	    <p>The Erlang Meta Interpreter (<c>erl_eval</c>) has been
	    somewhat optimized when it comes to interpreting
	    <c>receive</c>-expressions. (Thanks to Richard
	    Carlsson.)</p>
          <p>
	    Own Id: OTP-8139</p>
        </item>
        <item>
	    <p>The Erlang Pretty Printer (<c>erl_pp</c>) has been
	    modified as to handle types.</p>
          <p>
	    Own Id: OTP-8150</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.16.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>The text of tokens returned by the Erlang scanner
	    (<c>erl_scan</c>) was sometimes empty when the
	    <c>text</c> option was given and <c>StartLocation</c> was
	    a line. This bug has been fixed.</p>
          <p>
	    Own Id: OTP-7965</p>
        </item>
        <item>
	    <p>The documentation for <c>base64:decode/1</c> has been
	    updated to point out that it strips whitespace.</p>
	    <p><c>base64:decode/1</c> and <c>base64:mime_decode/1</c>
	    would sometimes fail instead of stripping away non-base64
	    characters.</p>
          <p>
	    Own Id: OTP-7984</p>
        </item>
        <item>
          <p>
	    Two types in the <c>gen</c> module were corrected.</p>
          <p>
	    Own Id: OTP-8029 Aux Id: seq11296 </p>
        </item>
        <item>
          <p>
	    <c>array:from_orddict([])</c> and
	    <c>array:from_list([])</c> would construct fixed arrays
	    instead of extendible arrays.</p>
          <p>
	    Own Id: OTP-8033</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Interpreted escripts are now tail recursive.</p>
          <p>
	    The function erl_eval:expr/5 has been introduced.</p>
          <p>
	    Own Id: OTP-7933</p>
        </item>
        <item>
          <p>
	    <c>gen_server:call/2,3</c> will be somewhat faster if the
	    calling process has a many messages in its message queue.</p>
          <p>
	    Own Id: OTP-7979</p>
        </item>
        <item>
          <p>
	    Random now supports seed with arity one,
	    <c>random:seed/1</c>, which takes a three-tuple.</p>
          <p>
	    Own Id: OTP-8019</p>
        </item>
        <item>
	    <p>The <c>regexp</c> module now recognizes the escape
	    sequences <c>\xXY</c> and <c>\x{X...}</c>.</p>
          <p>
	    Own Id: OTP-8024</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.16.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>The documentation of <c>dets:open_file/1</c> now
	    states that the file is repaired if it has not been
	    properly closed. (Thanks to Ulf Wiger.)</p>
          <p>
	    Own Id: OTP-7895</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>The Erlang scanner no longer returns the text of
	    tokens when the start location is a pair of a line and
	    column unless the new option <c>text</c> is supplied
	    (incompatibility with R13A).</p> <p>There are new
	    functions to access the attributes of tokens:
	    <c>attributes_info/1,2</c> and
	    <c>set_attribute/3</c>.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7892 Aux Id: OTP-7810 </p>
        </item>
        <item>
          <p>
	    Several glitches and performance issues in the Unicode
	    and I/O-system implementation of R13A have been
	    corrected.</p>
          <p>
	    Own Id: OTP-7896 Aux Id: OTP-7648 OTP-7887 </p>
        </item>
        <item>
          <p>
	    The type spec of filelib:wildcard/2 has been corrected.</p>
          <p>
	    Own Id: OTP-7915</p>
        </item>
        <item>
	    <p>New functions: <c>gb_sets:is_disjoint/2</c>,
	    <c>ordsets:is_disjoint/2</c>, and
	    <c>gb_sets:is_disjoint/2</c>.</p>
          <p>
	    Own Id: OTP-7947</p>
        </item>
        <item>
	    <p>The function <c>gb_trees:map/2</c> which was added in
	    R13A is now documented.</p>
          <p>
	    Own Id: OTP-7948</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.16</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>Fixed a minor race conditions in
	    <c>gen_server:start*</c>: if one of these functions
	    returned <c>{error,Reason}</c> or <c>ignore</c>, the name
	    could still be registered (either locally or in
	    <c>global</c>).</p>
	    <p>A process started by <c>proc_lib</c> in some cases
	    depended on its process dictionary not to be erased, and
	    would crash when terminating abnormally and not generate
	    a proper crash report. This has been corrected (but the
	    initial call will not be shown in the error report if the
	    process dictionary has been erased). NOTE: There is no
	    longer any need to erase the process dictionary for
	    memory conservation reasons, since the actual call
	    arguments are no longer saved in the process
	    dictionary.</p>
          <p>
	    Own Id: OTP-7669</p>
        </item>
        <item>
	    <p>The Erlang preprocessor used wrong line number when
	    stringifying macro arguments. (Thanks to John
	    Hughes.)</p>
          <p>
	    Own Id: OTP-7702</p>
        </item>
        <item>
	    <p>A bug in the <c>qlc</c> module has been fixed: merge
	    join sometimes failed to return all answers. (Thanks to
	    Bernard Duggan.)</p>
          <p>
	    Own Id: OTP-7714</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>A new option, <c>key_equality</c>, has been added to
	    <c>qlc:table/2</c>. This option makes it possible for
	    <c>qlc</c> to better handle tables that use <c>==/2</c>
	    when comparing keys for equality (examples of such tables
	    are ordered ETS tables and gb_table in qlc(3)).</p>
          <p>
	    Own Id: OTP-6674</p>
        </item>
        <item>
	    <p>The functions <c>lists:seq/1,2</c> return the empty
	    list in a few cases when they used to generate an
	    exception, for example <c>lists:seq(1, 0)</c>. See
	    lists(3) for details. (Thanks to Richard O'Keefe.)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7230</p>
        </item>
        <item>
          <p>
	    The order of objects visited in select for ordered_set is
	    now documented.</p>
          <p>
	    Own Id: OTP-7339</p>
        </item>
        <item>
          <p>
	    It is now possible to debug code in escripts and
	    archives.</p>
          <p>
	    Own Id: OTP-7626</p>
        </item>
        <item>
	    <p>Support for Unicode is implemented as described in
	    EEP10. Formatting and reading of unicode data both from
	    terminals and files is supported by the io and io_lib
	    modules. Files can be opened in modes with automatic
	    translation to and from different unicode formats. The
	    module 'unicode' contains functions for conversion
	    between external and internal unicode formats and the re
	    module has support for unicode data. There is also
	    language syntax for specifying string and character data
	    beyond the ISO-latin-1 range.</p>
	    <p>The interactive shell will support input and output of
	    unicode characters when the terminal and operating system
	    supports it.</p>
	    <p>Please see the EEP and the io/io_lib manual pages as
	    well as the stdlib users guide for details.</p>
	    <p><em>I/O-protocol incompatibilities:</em></p>
	    <p>The io_protocol between io_Server and client is
	    updated to handle protocol data in unicode formats. The
	    updated protocol is now documented. The specification
	    resides in the stdlib <em>users manual</em>, which is a
	    new part of the manual.</p>
	    <p><em>io module incompatibilities:</em></p>
	    <p>The io:put_chars, io:get_chars and io:get_line all
	    handle and return unicode data. In the case where
	    binaries can be provided (as to io:put_chars), they shall
	    be encoded in UTF-8. When binaries are returned (as by
	    io:get_line/get_chars when the io_server is set in
	    <em>binary mode</em>) the returned data is also
	    <em>always</em> encoded as UTF-8. The file module however
	    still returns byte-oriented data, why file:read can be
	    used instead of io:get_chars to read binary data in
	    ISO-latin-1.</p>
	    <p><em>io_lib module incompatibilities:</em></p>
	    <p>io_lib:format can, given new format directives (i.e
	    "~ts" and "~tc"), return lists containing integers larger
	    than 255. </p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7648 Aux Id: OTP-7580 OTP-7514 OTP-7494
	    OTP-7443 OTP-7181 EEP10 EEP11 </p>
        </item>
        <item>
          <p>
	    The function <c>pool:attach/1</c> now returns
	    <c>already_attached</c> if the node is already attached,
	    rather than <c>allready_attached</c> (sic!). (Thanks to
	    Edwin Fine.)</p>
          <p>
	    Own Id: OTP-7653 Aux Id: OTP-7603 </p>
        </item>
        <item>
          <p>
	    Preprocessor directives are now allowed in escripts. This
	    means that for example macros may be used in escripts.</p>
          <p>
	    Own Id: OTP-7662</p>
        </item>
        <item>
	    <p>When a process started with <c>proc_lib</c>,
	    <c>gen_server</c>, or <c>gen_fsm</c> exits with reason
	    <c>{shutdown,Term}</c>, a crash report will no longer be
	    generated (to allow a clean shutdown, but still provide
	    additional information to process that are linked to the
	    terminating process).</p>
          <p>
	    Own Id: OTP-7740 Aux Id: seq10847 </p>
        </item>
        <item>
          <p>
	    A new BIF, <c>lists:keyfind/3</c>, has been added. It
	    works like <c>lists:keysearch/3</c> except that it does
	    not wrap the returned tuple in a <c>value</c> tuple in
	    case of success. (Thanks to James Hague for suggesting
	    this function.)</p>
          <p>
	    Own Id: OTP-7752</p>
        </item>
        <item>
	    <p><c>lists:suffix(Suffix, List)</c> used to have a a
	    complexity of <c>length(Suffix)*length(List)</c> (which
	    could become quite slow for some inputs). It has now been
	    re-implemented so that its complexity is
	    <c>length(Suffix)+length(List)</c>. (Thanks to Richard
	    O'Keefe for the new implementation.)</p>
          <p>
	    Own Id: OTP-7797</p>
        </item>
        <item>
	    <p>The Erlang scanner has been augmented as to return
	    white spaces, comments, and exact location of tokens. The
	    functions <c>string/3</c>, <c>tokens/4</c>, and
	    <c>token_info/1,2</c> are new. See erl_scan(3) for
	    details.</p>
	    <p><c>tokens/3,4</c> have been modified as to return a
	    list of tokens instead of an error when <c>eof</c> is
	    encountered before the dot.</p>
          <p>
	    Own Id: OTP-7810</p>
        </item>
        <item>
          <p>
	    <c>filelib:fold_files/5</c> now uses the <c>re</c> module
	    instead of the <c>regexp</c> module for regular
	    expression matching. In practice, this change will not be
	    a problem for most regular expressions used for
	    <c>filelib:fold_files/5</c>. (The major difference in
	    regular expression is that parenthesis and curly brackets
	    is treated as literal characters by <c>regexp</c> but as
	    special characters by <c>re</c>; fortunately, those
	    characters are rarely used in filenames.)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7819</p>
        </item>
        <item>
          <p>
	    <c>digraph:new(Type)</c> will now cause a <c>badarg</c>
	    exception if <c>Type</c> is not a valid type. Similarly,
	    <c>digraph_utils:subgraph/2,3</c> will now cause a
	    <c>badarg</c> if the arguments are invalid. (Those
	    functions used to return error tuples if something was
	    wrong.)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7824</p>
        </item>
        <item>
	    <p>The argument passed to <c>random:uniform/1</c> must
	    now be an integer (as stated in the documentation). In
	    previous releases, a floating point number was also
	    allowed.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7827</p>
        </item>
        <item>
	    <p>The copyright notices have been updated.</p>
          <p>
	    Own Id: OTP-7851</p>
        </item>
        <item>
	    <p>A few missing match spec functions was added to
	    dbg:fun2ms; exception_trace/0 and trace/2,3.</p>
	    <p>There is a new function queue:member/2.</p>
	    <p>A bug in io_lib:fread that made it accidentally
	    concatenate fields separated by newline has been
	    corrected. Reported and analyzed by Matthew Palmer to
	    erlang-patches.</p>
          <p>
	    Own Id: OTP-7865</p>
        </item>
      </list>
    </section>

</section>


<section><title>STDLIB 1.15.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>A bug in the <c>qlc</c> module has been fixed: when
	    merge joining two query handles the temporary file used
	    for equivalence classes was not truncated properly which
	    could result in poor performance.</p>
          <p>
	    Own Id: OTP-7552</p>
        </item>
        <item>
          <p>
	    The characters 16#C0 and 16#E0 ("A" and "a" with grave
	    accent), were not properly converted by the
	    <c>string:to_lower/1</c> and <c>string:to_upper/1</c>
	    functions. (Thanks to Richard O'Keefe.)</p>
          <p>
	    Own Id: OTP-7589</p>
        </item>
        <item>
          <p>
	    The function <c>pool:attach/1</c> now returns
	    <c>already_attached</c> if the node is already attached,
	    rather than <c>allready_attached</c> (sic!). (Thanks to
	    Edwin Fine.)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7603</p>
        </item>
        <item>
	    <p>The documentation for <c>io:get_line/1,2</c> now
	    mentions that the return value can also be
	    <c>{error,Reason}</c>.</p>
          <p>
	    Own Id: OTP-7604 Aux Id: seq11063 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The split function is now added to the re library.
	    Exceptions and errors from both run, replace and split
	    are made more consistent.</p>
          <p>
	    Own Id: OTP-7514 Aux Id: OTP-7494 </p>
        </item>
        <item>
	    <p>Processes spawned using <c>proc_lib</c> (including
	    <c>gen_server</c> and other library modules that use
	    <c>proc_lib</c>) no longer keep the entire argument list
	    for the initial call, but only the arity.</p>
	    <p>Also, if <c>proc_lib:spawn/1</c> is used to spawn a
	    fun, the actual fun is not kept, but only module,
	    function name, and arity of the function that implements
	    the fun.</p>
	    <p>The reason for the change is that keeping the initial
	    fun (or a fun in an argument list), would prevent
	    upgrading the code for the module. A secondary reason is
	    that keeping the fun and function arguments could waste a
	    significant amount of memory.</p>
	    <p>The drawback with the change is that the crash reports
	    will provide less precise information about the initial
	    call (only <c>Module:Function/Arity</c> instead of
	    <c>Module:Function(Arguments)</c>). The function
	    <c>proc_lib:initial_call/1</c> still returns a list, but
	    each argument has been replaced with a dummy atom.</p>
          <p>
	    Own Id: OTP-7531 Aux Id: seq11036 </p>
        </item>
        <item>
          <p>
	    There is now experimental support for loading of code
	    from archive files. See the documentation of <c>code</c>,
	    <c>init</c>, <c>erl_prim_loader </c> and <c>escript</c>
	    for more info.</p>
          <p>
	    The error handling of <c>escripts</c> has been improved.</p>
          <p>
	    An <c>escript</c> may now set explicit arguments to the
	    emulator, such as <c>-smp enabled</c>.</p>
          <p>
	    An <c>escript</c> may now contain a precompiled beam
	    file.</p>
          <p>
	    An <c>escript</c> may now contain an archive file
	    containing one or more applications (experimental).</p>
          <p>
	    The internal module <c>code_aux</c> has been removed.</p>
          <p>
	    Own Id: OTP-7548 Aux Id: otp-6622 </p>
        </item>
        <item>
          <p>
	    Enabled explicit control of which types of files that
	    should be compressed in a ZIP archive.</p>
          <p>
	    Own Id: OTP-7549 Aux Id: otp-6622 </p>
        </item>
        <item>
          <p>
	    In the job control mode, the "s" and "r" commands now
	    take an optional argument to specify which shell to
	    start. (Thanks to Robert Virding.)</p>
          <p>
	    Own Id: OTP-7617</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.15.4</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    A bug in the calendar module could cause
	    calendar:local_time_to_universal_time_dst/1 to return
	    duplicate identical values for local times in timezones
	    without DST. Multiple values should only be returned when
	    a local time is within the hour occurring twice due to
	    shift from DST to non-DST, and certainly only in
	    timezones with DST. The correct behaviour is now
	    implemented.</p>
          <p>
	    Own Id: OTP-7344 Aux Id: seq10960 </p>
        </item>
        <item>
	    <p>The documentation of <c>(d)ets:init_table()</c> has
	    been corrected. (Thanks to Paul Mineiro.)</p>
          <p>
	    Own Id: OTP-7413</p>
        </item>
        <item>
	    <p>The soft upper limit of 60 on the number of non-white
	    characters on a line, which was introduced in R12B-0 for
	    the control sequences <c>p</c> and <c>P</c> of the
	    functions <c>io:fwrite/2,3</c> and
	    <c>io_lib:fwrite/2</c>, has been removed. This means that
	    terms whose printed representation fits on a line will
	    have no NEWLINEs. The Erlang shell still uses the 60
	    character limit, though.</p>
          <p>
	    Own Id: OTP-7421 Aux Id: OTP-6708 </p>
        </item>
        <item>
	    <p>Some debug code has been removed from Dets.</p>
          <p>
	    Own Id: OTP-7424</p>
        </item>
        <item>
	    <p>The documentation of <c>dets:match_delete/2</c> has
	    been corrected. (Thanks to Paul Mineiro.)</p>
          <p>
	    Own Id: OTP-7445</p>
        </item>
        <item>
	    <p>Corrections of digraph(3). (Thanks to Vlad
	    Dumitrescu.)</p>
          <p>
	    Own Id: OTP-7492</p>
        </item>
        <item>
          <p>
	    For the process that an escript runs in, the
	    <c>trap_exit</c> process flag is now <c>false</c> instead
	    of <c>true</c> (as in previous releases). Scripts that
	    depend on the previous (counter-intuitive) behaviour
	    might not work. (Thanks to Bengt Kleberg.)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7517</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>The documentation of <c>lists:(u)sort/2</c> now states
	    what is expected of an ordering function.</p>
          <p>
	    Own Id: OTP-7489</p>
        </item>
        <item>
          <p>
	    The re module is extended with repetitive matches (global
	    option) and replacement function.</p>
          <p>
	    Own Id: OTP-7494 Aux Id: OTP-7181 </p>
        </item>
        <item>
	    <p>The Erlang shell now displays a nicer error message
	    when evaluating an undefined command. (Thanks to Richard
	    Carlsson.)</p>
          <p>
	    Own Id: OTP-7495</p>
        </item>
      </list>
    </section>

</section>


<section><title>STDLIB 1.15.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    zip:unzip to/from binary with empty directories did not
	    work. (Thanks to Martin Dvorak.)</p>
          <p>
	    Own Id: OTP-7248</p>
        </item>
        <item>
	    <p>The documentation of the control sequence <c>w</c> of
	    the <c>io_lib</c> module now states that floating point
	    numbers are printed accurately.</p>
          <p>
	    Own Id: OTP-7324 Aux Id: OTP-7084 </p>
        </item>
        <item>
          <p>
	    zip:unzip was not supporting a flavour of the zip format
	    found in jar-files.</p>
          <p>
	    Own Id: OTP-7382 Aux Id: seq10970 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    An experimental module "re" is added to the emulator
	    which interfaces a publicly available regular expression
	    library for Perl-like regular expressions (PCRE). The
	    interface is purely experimental and *will* be subject to
	    change.</p>
          <p>
	    The implementation is for reference and testing in
	    connection to the relevant EEP.</p>
          <p>
	    Own Id: OTP-7181</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.15.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p> When inserting many small objects, Dets sometimes
	    crashed when reaching the maximum number of slots.
	    (Thanks to Daniel Goertzen.) </p>
          <p>
	    Own Id: OTP-7146</p>
        </item>
        <item>
	    <p>Processes linked to the Erlang shell did not get an
	    exit signal when the evaluator process was killed. This
	    bug, introduced in R12B-0, has been fixed.</p>
          <p>
	    Own Id: OTP-7184 Aux Id: OTP-6554 </p>
        </item>
        <item>
          <p>
	    Invalid arguments to <c>ets:update_counter/3</c> were not
	    handled correctly. A tuple position (<c>Pos</c>) less
	    than 1 caused the element directly following the key to
	    be updated (as if no position at all had been specified).
	    All invalid values for <c>Pos</c> will now fail with
	    <c>badarg</c>.</p>
          <p>
	    Own Id: OTP-7226</p>
        </item>
        <item>
          <p>
	    For certain terminals, io:columns/0 could return 0
	    instead of enotsup. That is now corrected.</p>
          <p>
	    Own Id: OTP-7229 Aux Id: seq10886 </p>
        </item>
        <item>
	    <p><c>qlc:info()</c> can now handle port identifiers,
	    pids, references, and funs. (Thanks to Wojciech Kaczmare
	    for reporting this bug.)</p> <p>When evaluating the
	    <c>parent_fun</c> messages sent to the process calling
	    <c>qlc:cursor()</c> were sometimes erroneously consumed.
	    This bug has been fixed.</p>
          <p>
	    Own Id: OTP-7232</p>
        </item>
        <item>
	    <p><c>erl_parse:abstract()</c> can now handle bit
	    strings.</p>
          <p>
	    Own Id: OTP-7234</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>The <c>queue</c> module has been rewritten to make it
	    easier to use. Suggestions and discussion from and with
	    among others Lev Walkin, Anders Ramsell and Rober Virding
	    in december 2007 on [email protected]. It was
	    also discussed to change the internal representation to
	    contain length information which would speed up
	    <c>len/1</c> but that change has been postponed. Anyone
	    interested may write an EEP and try to reach an
	    acceptable compromise for queue overhead and thereby the
	    speed of all other operations than <c>len/1</c>. The
	    <c>queue</c> module is now optimized for fast and minimal
	    garbage <c>in/2</c> and <c>out/1</c> and such. See the
	    documentation.</p>
	    <p>New functions: <c>is_queue/1</c>, <c>get/1</c>,
	    <c>get_r/1</c>, <c>peek/1</c>, <c>peek_r/1</c>,
	    <c>drop/1</c>, <c>drop_r/1</c> and <c>liat/1</c>.
	    <c>is_queue/1</c> is a new predicate, <c>liat/1</c> is a
	    correction of an old misspelling, and the others
	    (<c>get</c>*, <c>peek</c>* and <c>drop</c>*) are new
	    interface functions.</p>
          <p>
	    Own Id: OTP-7064</p>
        </item>
        <item>
	    <p>The functions <c>io_lib:write/1,2</c> and
	    <c>io_lib:print/1,4</c> have been changed when it comes
	    to writing floating point numbers. This change affects
	    the control sequences <c>p</c>, <c>P</c>, <c>w</c>, and
	    <c>W</c> of the <c>io_lib</c> module. (Thanks to Bob
	    Ippolito for code contribution.) </p>
          <p>
	    Own Id: OTP-7084</p>
        </item>
        <item>
          <p>
	    Updated the documentation for
	    <c>erlang:function_exported/3</c> and <c>io:format/2</c>
	    functions to no longer state that those functions are
	    kept mainly for backwards compatibility.</p>
          <p>
	    Own Id: OTP-7186</p>
        </item>
        <item>
          <p>
	    A new BIF ets:update_element/3. To update individual
	    elements within an ets-tuple, without having to read,
	    update and write back the entire tuple.</p>
          <p>
	    Own Id: OTP-7200</p>
        </item>
        <item>
	    <p><c>string:join/2</c> now accepts an empty list as
	    first argument.</p>
          <p>
	    Own Id: OTP-7231 Aux Id: OTP-6671 </p>
        </item>
        <item>
	    <p><c>qlc:info/1,2</c> accepts a new option,
	    <c>depth</c>. The type <c>SelectedObjects</c> used in the
	    description of <c>qlc:table/2</c> has been augmented.</p>
          <p>
	    Own Id: OTP-7238</p>
        </item>
        <item>
	    <p><c>tuple_size/1</c> and <c>byte_size/1</c> have been
	    substituted for <c>size/1</c> in the documentation.</p>
          <p>
	    Own Id: OTP-7244</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.15.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Ets:select/3 in combination with
	    ets:repair_continuation/2 and ordered_set data tables
	    could result in function_clause although used as
	    intended. This is now corrected. Thanks to Paul Mineiro
	    for finding and isolating the bug!</p>
          <p>
	    Own Id: OTP-7025</p>
        </item>
        <item>
	    <p>The compiler warning for the deprecated function
	    <c>ftp:close/1</c> now mentions the correct replacement
	    function.</p>
	    <p>The warning for the removed functions in the
	    <c>httpd_util</c> module have been changed to say they
	    have been removed, not merely deprecated. (Thanks to
	    Fredrik Thulin.)</p>
          <p>
	    Own Id: OTP-7034 Aux Id: seq10825 </p>
        </item>
        <item>
	    <p>In <c>(Expr)#r{}</c> (no fields are updated),
	    <c>Expr</c> is no longer evaluated more than once. There
	    is also a test that <c>Expr</c> is of the correct record
	    type. (Thanks to Dominic Williams.)</p>
          <p>
	    Own Id: OTP-7078 Aux Id: OTP-4962 </p>
        </item>
        <item>
	    <p>Documentation bugfixes and clarifications.</p> (Thanks
	    to Joern ([email protected]), Matthias Lang, and Richard
	    Carlsson.)
          <p>
	    Own Id: OTP-7079</p>
        </item>
        <item>
	    <p>Duplicated objects were sometimes not deleted from the
	    list of answers when a QLC table was traversed using a
	    match specification. (Thanks to Dmitri Girenko.)</p>
          <p>
	    Own Id: OTP-7114</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>The documentation has been updated so as to reflect
	    the last updates of the Erlang shell as well as the minor
	    modifications of the control sequence <c>p</c> of the
	    <c>io_lib</c> module.</p> <p>Superfluous empty lines have
	    been removed from code examples and from Erlang shell
	    examples.</p>
          <p>
	    Own Id: OTP-6944 Aux Id: OTP-6554, OTP-6911 </p>
        </item>
        <item>
	    <p><c>tuple_size/1</c> and <c>byte_size/1</c> have been
	    substituted for <c>size/1</c>.</p>
          <p>
	    Own Id: OTP-7009</p>
        </item>
        <item>
          <p>
	    It is now possible to hibernate a
	    gen_server/gen_event/gen_fsm. In gen_server and gen_fsm,
	    hibernation is triggered by returning the atom
	    'hibernate'�instead of a timeout value. In the gen_event
	    case hibernation is triggered by a event handler
	    returning a tuple with an extra element containing the
	    atom 'hibernate'.</p>
          <p>
	    Own Id: OTP-7026 Aux Id: seq10817 </p>
        </item>
        <item>
	    <p>Some undocumented debug functionality has been added
	    to Dets.</p>
          <p>
	    Own Id: OTP-7066</p>
        </item>
        <item>
	    <p>The functions <c>digraph_utils:is_tree/1</c>,
	    <c>digraph_utils:is_arborescence/1</c>, and
	    <c>digraph_utils:arborescence_root/1</c> are new.</p>
          <p>
	    Own Id: OTP-7081</p>
        </item>
        <item>
          <p>
	    The compiler could generate suboptimal code for record
	    updates if the record update code consisted of multiple
	    source code lines.</p>
          <p>
	    Own Id: OTP-7101</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.15</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p>Bugs have been fixed in <c>qlc</c>:</p> <list
	    type="bulleted"> <item>Setting the <c>lookup_fun</c>
	    option of <c>qlc:table/2</c> to <c>undefined</c> could
	    cause a crash.</item> <item>If a QLC restricted some
	    column of a table in such a way that a traversal using a
	    match specification was possible and the QLC also
	    compared the key column or some indexed column of the the
	    table with a column of some other table, <c>qlc</c>
	    always chose to traverse the table first, never
	    considering lookup join. This has been changed so that
	    lookup join is always preferred; if an initial traversal
	    using the match specification is desired, the query needs
	    to be rewritten introducing an extra QLC with the
	    filter(s) restricting the column.</item> <item>When
	    trying to find candidates for match specifications and
	    lookup, filters using variables from one generator only
	    are ignored unless they are placed immediately after the
	    generator and possibly other filters using variables from
	    the same generator. In particular, filters joining two
	    tables should not be placed between the generator and the
	    filters using the generator only.</item> <item>The
	    call-back function <c>TraverseFun</c> used for
	    implementing QLC tables is allowed to return a term other
	    than a list since STDLIB 1.14 (OTP-5195). However, when
	    the returned term was a fun <c>qlc</c> often tried to
	    call the fun instead of returning it.</item> </list> <p>A
	    few minor optimizations have been implemented as
	    well.</p>
          <p>
	    Own Id: OTP-6673</p>
        </item>
        <item>
	    <p>A bug concerning the use of parameterized modules from
	    the shell has been fixed.</p>
          <p>
	    Own Id: OTP-6785</p>
        </item>
        <item>
	    <p>A bug regarding the size expression of the bit syntax
	    has been fixed in the <c>erl_eval</c> module.</p>
          <p>
	    Own Id: OTP-6787</p>
        </item>
        <item>
          <p>
	    The log_mf_h event handler didn't close the index file
	    when it was done reading it causing a file descriptor
	    leak.</p>
          <p>
	    Own Id: OTP-6800</p>
        </item>
        <item>
          <p>
	    Definitions for the <c>filename()</c> and
	    <c>dirname()</c> types have been added to the
	    documentation for the <c>filelib</c> module.</p>
          <p>
	    Own Id: OTP-6870</p>
        </item>
        <item>
	    <p>file:write_file/3, file:write/2 and file:read/2 could
	    crash (contrary to documentation) for odd enough file
	    system problems, e.g write to full file system. This bug
	    has now been corrected.</p> <p>In this process the file
	    module has been rewritten to produce better error codes.
	    Posix error codes now originate from the OS file system
	    calls or are generated only for very similar causes (for
	    example 'enomem' is generated if a memory allocation
	    fails, and 'einval' is generated if the file handle in
	    Erlang is a file handle but currently invalid).</p>
	    <p>More Erlang-ish error codes are now generated. For
	    example <c>{error,badarg}</c> is now returned from
	    <c>file:close/1</c> if the argument is not of a file
	    handle type. See file(3).</p> <p>The possibility to write
	    a single byte using <c>file:write/2</c> instead of a list
	    or binary of one byte, contradictory to the
	    documentation, has been removed.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-6967 Aux Id: OTP-6597 OTP-6291 </p>
        </item>
        <item>
	    <p>A bug concerning the evaluation of the <c>++/2</c>
	    operator has been fixed in <c>erl_eval</c>. (Thanks to
	    Matthew Dempsky.)</p>
          <p>
	    Own Id: OTP-6977</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>The behaviour of the internal functions gen:call/3,4
	    has been changed slightly in the rare case that when the
	    caller was linked to the called server, and the server
	    crashed during the call; its exit signal was consumed by
	    the gen:call/3,4 code and converted to an exit exception.
	    This exit signal is no longer consumed.</p>
	    <p>To even notice this change, 1) the calling process has
	    to be linked to the called server.</p>
          <p>
	    2) the call must not be remote by name that is it must be
	    local or remote by pid, local by name or global by name.</p>
          <p>
	    3) the calling process has to have set
	    <c>process_flag(trap_exit, true)</c>.</p>
          <p>
	    4) the server has to crash during the call.</p>
          <p>
	    5) the calling process has to be sensitive to getting
	    previously consumed <c>{'EXIT',Pid,Reason}</c> messages
	    in its message queue.</p>
	    <p>The old behaviour was once the only way for a client
	    to notice if the server died, but has since
	    <c>erlang:monitor(process, {Name,Node})</c> was
	    introduced and used in gen:call been regarded as an
	    undesired behaviour if not a bug.</p>
	    <p>The affected user APIs are:
	    <c>gen_server:call/2,3</c>,
	    <c>gen_fsm:sync_send_event/2,3</c>,
	    <c>gen_fsm:sync_send_all_state_event/2,3</c>,
	    <c>gen_event:_</c>, <c>sys:_</c> and maybe a few others
	    that hardly will be noticed.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-3954 Aux Id: Seq 4538 </p>
        </item>
        <item>
	    <p>When an exception occurs the Erlang shell now displays
	    the class, the reason, and the stacktrace in a clearer
	    way (rather than dumping the raw EXIT tuples as before).
	    <c>proc_lib:format/1</c> displays the exception of crash
	    reports in the same clearer way.</p> <p>The new shell
	    command <c>catch_exception</c> and the new application
	    configuration parameter <c>shell_catch_exception</c> can
	    be used for catching exceptions that would normally exit
	    the Erlang shell.</p>
          <p>
	    Own Id: OTP-6554 Aux Id: OTP-6289 </p>
        </item>
        <item>
	    <p>The function <c>string:join/2</c> joins strings in a
	    list with a separator. Example: '<c>string:join(["a",
	    "b", "c"], ", ") gives "a, b, c"</c>'</p>
          <p>
	    Own Id: OTP-6671</p>
        </item>
        <item>
	    <p>The control sequence <c>P</c> of the <c>Format</c>
	    argument of the functions <c>io:fwrite/2,3</c> and
	    <c>io_lib:fwrite/2</c> now inserts fewer line breaks when
	    printing tuples and lists. A soft upper limit of 60 on
	    the number of non-white characters on a line has been
	    introduced.</p>
          <p>
	    Own Id: OTP-6708</p>
        </item>
        <item>
          <p>
	    The new module <c>array</c> provides a fast functional
	    array implementation.</p>
          <p>
	    Own Id: OTP-6733</p>
        </item>
        <item>
	    <p>Functions that have long been deprecated have now been
	    removed from the following modules: <c>dict</c>,
	    <c>erl_eval</c>, <c>erl_pp</c>, <c>io</c>, <c>io_lib</c>,
	    <c>lists</c>, <c>orddict</c>, <c>ordsets</c>,
	    <c>sets</c>, and <c>string</c>.</p>
	    <p>The undocumented function <c>lists:zf/3</c> has also
	    been removed (use a list comprehension or
	    <c>lists:zf/2</c> instead).</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-6845</p>
        </item>
        <item>
          <p>
	    Minor documentation corrections for file:pread/2 and
	    file:pread/3.</p>
          <p>
	    Own Id: OTP-6853</p>
        </item>
        <item>
          <p>
	    Contract directives for modules in Kernel and STDLIB.</p>
          <p>
	    Own Id: OTP-6895</p>
        </item>
        <item>
	    <p>The <c>ets:fixtable/2</c> function, which has been
	    deprecated for several releases, has been removed.</p>
	    <p>The <c>ets:info/1</c> function has been reimplemented
	    as a BIF, which guarantees that information returned is
	    consistent.</p>
	    <p>The <c>ets:info/2</c> function now fails with reason
	    <c>badarg</c> if the second argument is invalid.
	    (Dialyzer can be used to find buggy code where the second
	    argument is misspelled.)</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-6906</p>
        </item>
        <item>
	    <p>The Erlang pretty printer <c>erl_pp</c> now inserts
	    more newlines in order to facilitate line coverage
	    analysis by <c>Cover</c>. (Thanks to Thomas Arts.)</p>
          <p>
	    Own Id: OTP-6911</p>
        </item>
        <item>
          <p>
	    The documentation for ets:safe_fixtable/2, ets:foldl/3,
	    and ets:foldr/3 is now clearer about what will happen if
	    objects are inserted during table traversals.</p>
          <p>
	    Own Id: OTP-6928 Aux Id: seq10779 </p>
        </item>
        <item>
          <p>
	    It is now possible to extract files in tar files directly
	    into binaries. It is also possible to add files to tar
	    files directly from binaries.</p>
          <p>
	    Own Id: OTP-6943</p>
        </item>
        <item>
	    <p>The functions <c>keystore/4</c> and <c>keytake/3</c>
	    are new in the <c>lists</c> module.</p>
          <p>
	    Own Id: OTP-6953</p>
        </item>
        <item>
	    <p>The new <c>qlc</c> option <c>tmpdir_usage</c> can be
	    used for outputting messages onto the error logger when a
	    temporary file is about to be created, or to prohibit the
	    usage of temporary files altogether.</p>
          <p>
	    Own Id: OTP-6964</p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.14.5.3</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The allowed syntax for -type() and -spec() was updated.</p>
          <p>
	    Own Id: OTP-6861 Aux Id: OTP-6834 </p>
        </item>
      </list>
    </section>

</section>

<section><title>STDLIB 1.14.5.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            The compiler will for forward compatibility ignore the
            -type() and -spec() attributes that will be introduced in
            the R12B release.</p>
          <p>
            Own Id: OTP-6834</p>
        </item>
      </list>
    </section>

</section>
<section><title>STDLIB 1.14.5.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The log_mf_h event handler didn't close the index file
	    when it was done reading it causing a file descriptor
	    leak.</p>
          <p>
	    Own Id: OTP-6800</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The dict:size/1 and orddict:size/1 functions have been
	    documented.</p>
          <p>
	    Own Id: OTP-6818</p>
        </item>
      </list>
    </section>

</section>

  <section>
    <title>STDLIB 1.14.5</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Bugs have been fixed in Dets concerning comparison
            (==) and matching (=:=).</p>
          <p>The STDLIB manual pages
            have been updated as to more carefully state when terms
            are matched and when they are compared.</p>
          <p>Own Id: OTP-4738 Aux Id: OTP-4685 </p>
        </item>
        <item>
          <p>The shell has been updated to fix the following flaws:
            Shell process exit left you with an unresponsive initial
            shell if not using oldshell. Starting a restricted shell
            with a nonexisting callback module resulted in a shell
            where no commands could be used, not even init:stop/0.
            Fun's could not be used as parameters to local shell
            functions (in shell_default or user_default) when
            restricted_shell was active.</p>
          <p>Own Id: OTP-6537</p>
        </item>
        <item>
          <p>A bug in QLC's parse transform has been fixed.</p>
          <p>Own Id: OTP-6590</p>
        </item>
        <item>
          <p>A bug concerning <c>lists:sort/1</c> and
            <c>lists:keysort/2</c> and a mix of floating point
            numbers and integers has been fixed.</p>
          <p>Own Id: OTP-6606</p>
        </item>
        <item>
          <p>When calling <c>erlang:garbage_collect/0</c> in the
            Erlang shell not only the evaluator process (the one
            returned by calling <c>self()</c> in the Erlang shell) is
            garbage collected, but also the process holding the
            history list.</p>
          <p>Own Id: OTP-6659</p>
        </item>
        <item>
          <p>Functions of the <c>beam_lib</c> module that used to
            catch exceptions and return a tuple
            <c>{'EXIT',Reason}</c> now exit with the reason
            <c>Reason</c>.</p>
          <p>Own Id: OTP-6711</p>
        </item>
        <item>
          <p>The <c>erl_eval</c> module now calls the non-local
            function handler whenever an operator is evaluated
            (exceptions are <c>andalso</c>, <c>orelse</c>, and
            <c>catch</c>). The non-local function handler is now also
            called when the function or operator occurs in a guard
            test (such calls used to be ignored).</p>
          <p>These changes affect the Erlang shell when running in
            restricted mode: the callback function
            <c>non_local_allowed/3</c> is now called for operators
            such as <c>'!'/2</c>. This means that
            <c>non_local_allowed/3</c> may need to be changed as to
            let operators through. Note that <c>erlang:'!'/2</c> as
            well as <c>erlang:send/2,3</c> have to be restricted in
            order to stop message passing in the shell.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-6714 Aux Id: seq10374 </p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The new compiler option <c>warn_obsolete_guard</c> can
            be used for turning on warnings for calls to old type
            testing BIFs.</p>
          <p>Own Id: OTP-6585</p>
        </item>
        <item>
          <p>For scripts written using <c>escript</c>, there is a new
            function <c>escript:script_name/0</c>, which can be used
            to retrieve the pathame of the script. The documentation
            has been clarified regarding pre-defined macros such as
            ?MODULE and the module name.</p>
          <p>Own Id: OTP-6593</p>
        </item>
        <item>
          <p>Minor Makefile changes.</p>
          <p>Own Id: OTP-6689 Aux Id: OTP-6742 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14.4</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The MD5 calculation of a BEAM file done by
            <c>code:module_md5/1</c>, <c>beam_lib:md5/1</c>, and by
            the compiler for the default value of the <c>vsn</c>
            attribute have all been changed so that its result will
            be the same on all platforms; modules containing funs
            could get different MD5s on different platforms.</p>
          <p>Own Id: OTP-6459</p>
        </item>
        <item>
          <p>When sorting terms using the <c>file_sorter</c> module
            (the option <c>Format</c> set to <c>term</c>), file
            errors were not always properly handled. This bug has
            been fixed.</p>
          <p>The directory supplied with the
            <c>tmpdir</c> option is no longer checked unless it is
            actually used. The error reason <c>not_a_directory</c>
            can no longer be returned; instead a <c>file_error</c>
            tuple is returned</p>
          <p>Own Id: OTP-6526</p>
        </item>
        <item>
          <p>Bugs regarding <c>try</c>/<c>catch</c> have been fixed
            in the <c>erl_eval</c> module.</p>
          <p>Own Id: OTP-6539</p>
        </item>
        <item>
          <p>When sorting the operands of a join operation, QLC
            called <c>file:open/3</c> with bad arguments. This bug
            has been fixed.</p>
          <p>Own Id: OTP-6562 Aux Id: seq10606 </p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The functions <c>beam_lib:cmp/1</c> and
            <c>beam_lib:strip/1</c> (and similar functions) have been
            updated to handle optional chunks (such as "FunT") in
            more general way in order to be future compatible.</p>
          <p>The function <c>beam_lib:chunks/3</c> has been
            added.</p>
          <p>The function <c>beam_lib:md5/1</c> has been added.</p>
          <p>Own Id: OTP-6443</p>
        </item>
        <item>
          <p>Added base64 as a module to stdlib, encoding and decoding</p>
          <p>Own Id: OTP-6470</p>
        </item>
        <item>
          <p>Added the functions to_upper/1 and to_lower/1 to the
            string module. These provide case conversion for ISO/IEC
            8859-1 characters (Latin1) and strings.</p>
          <p>Own Id: OTP-6472</p>
        </item>
        <item>
          <p>The callback function <c>non_local_allowed/3</c> used
            by the restricted shell can now return the value
            <c>{{restricted,NewFuncSpec,NewArgList},NewState}</c>
            which can be used for letting the shell call some other
            function than the one specified.</p>
          <p>Own Id: OTP-6497 Aux Id: seq10555 </p>
        </item>
        <item>
          <p>There is a new <c>escript</c> program that can be used
            for writing scripts in Erlang. Erlang scripts don't need
            to be compiled and any arguments can be passed to them
            without risk that they are interpreted by the Erlang
            system.</p>
          <p>Own Id: OTP-6505</p>
        </item>
        <item>
          <p>The <c>Format</c> argument of the functions
            <c>io:fwrite/2,3</c> and <c>io_lib:fwrite/2</c> is now
            allowed to be a binary.</p>
          <p>Own Id: OTP-6517</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14.3.1</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The control sequences <c>p</c> and <c>P</c> of the
            <c>Format</c> argument of the functions
            <c>io:fwrite/2,3</c> and <c>io_lib:fwrite/2</c> could
            cause a <c>badarg</c> failure when applied to binaries.
            This bug was introduced in STDLIB 1.14.3. (Thanks to
            Denis Bilenko.)</p>
          <p>Own Id: OTP-6495</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Added the option {cwd, Dir} to make zip-archives with
            relative pathnames without having to do (a global)
            file:set_cwd.</p>
          <p>Own Id: OTP-6491 Aux Id: seq10551 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14.3</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The <c>spawn_opt/2,3,4,5</c> option <c>monitor</c> --
            introduced in Kernel 2.11.2 -- is currently not possible
            to use when starting a process using <c>proc_lib</c>,
            that is, also when starting a gen_server, gen_fsm etc. </p>
          <p>This limitation has now been properly documented and the
            behavior of the <c>gen_fsm</c>, <c>gen_server</c>, and
            <c>proc_lib</c> <c>start</c> and <c>start_link</c>
            functions when providing this option has been changed
            from hanging indefinitely to failing with reason
            <c>badarg</c>.</p>
          <p>(Thanks to Fredrik Linder)</p>
          <p>Own Id: OTP-6345</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The control sequence <c>P</c> of the <c>Format</c>
            argument of the functions <c>io:fwrite/2,3</c> and
            <c>io_lib:fwrite/2</c> now replaces the tail of binary
            strings with <c>...</c> when the maximum depth has been
            reached. For instance, <c><![CDATA[io:fwrite("~P", [<<"a binary string">>, 3]).]]></c> prints <c><![CDATA[<<"a binary"...>>]]></c>.</p>
          <p>The indentation takes more care not to exceed the
            right margin, if possible.</p>
          <p>If the maximum depth is
            reached while printing a tuple, <c>,...</c> is printed
            instead of <c>|...</c> (this change applies to the
            control sequence <c>W</c> as well).</p>
          <p>Own Id: OTP-6354</p>
        </item>
        <item>
          <p>The Erlang shell command <c>h/0</c> that prints the
            history list now avoids printing (huge) terms referred to
            by <c>v/1</c> but instead just prints the call to
            <c>v/1</c>.</p>
          <p>Own Id: OTP-6390</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14.2.2</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The functions <c>dets:select/1,3</c>,
            <c>dets:match/1,3</c>, and <c>dets:match_object/1,3</c>
            have been changed as to never return
            <c>{[],Continuation}</c>. This change affects the
            corresponding functions in Mnesia.</p>
          <p>Bugs have been
            fixed in QLC: <c>qlc:info()</c> could crash if the
            <c>tmpdir</c> option did not designate a valid directory;
            the results of looking up keys are kept in RAM, which
            should improve performance.</p>
          <p>Own Id: OTP-6359</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14.2.1</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>A bug in <c>erl_pp:exprs()</c> has been fixed.</p>
          <p>Own Id: OTP-6321 Aux Id: seq10497 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14.2</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The control sequences <c>p</c> and <c>P</c> of the
            <c>Format</c> argument of the functions
            <c>io:format/2,3</c> and <c>io_lib:format/2</c> did not
            handle binaries very well. This bug, introduced in
            stdlib-1.14, has been fixed.</p>
          <p>Own Id: OTP-6230</p>
        </item>
        <item>
          <p><c>filelib:wildcard(Wc, PathWithRedundantSlashes)</c>,
            where <c>PathWithRedundantSlashes</c> is a directory path
            containing redundant slashes, such as <c>/tmp/</c> or
            <c>//tmp</c>, could return incorrect results. (Thanks to
            Martin Bjorklund.)</p>
          <p>Own Id: OTP-6271</p>
        </item>
        <item>
          <p>The Erlang code preprocessor crashed if the predefined
            macros ?MODULE or ?MODULE_STRING were used before the
            module declaration. This bug has been fixed.</p>
          <p>Own Id: OTP-6277</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Support for faster join of two tables has been added
            to the <c>qlc</c> module. There are two kinds of fast
            joins: lookup join that uses existing indices, and merge
            join that takes two sorted inputs. There is a new
            <c>join</c> option that can be used to force QLC to use a
            particular kind of join in some QLC expression.</p>
          <p>Several other changes have also been included:</p>
          <list type="bulleted">
            <item>
              <p>The new <c>tmpdir</c> option of <c>cursor/2</c>,
                <c>eval/2</c>, <c>fold/4</c>, and <c>info/2</c> can be
                used to set the directory that join uses for temporary
                files. The option also overrides the <c>tmpdir</c> option
                of <c>keysort/3</c> and <c>sort/2</c>.</p>
            </item>
            <item>
              <p>The new <c>lookup</c> option can be used to
                assert that constants are looked up when evaluating some
                QLC expression.</p>
            </item>
            <item>
              <p>The <c>cache</c> and <c>cache_all</c> options
                accept new tags: <c>ets</c>, <c>list</c>, and <c>no</c>.
                The tag <c>list</c> caches answers in a list using a
                temporary file if the answers cannot be held in RAM.
                Combining <c>{cache,list}</c> and <c>{unique, true}</c>
                is equivalent to calling <c>sort/2</c> with the option
                <c>unique</c> set to <c>true</c>. The old tags
                <c>true</c> (equivalent to <c>ets</c>) and <c>false</c>
                (equivalent to <c>no</c>) are recognized for backward
                compatibility.</p>
            </item>
            <item>
              <p>The new option <c>max_list_size</c> can be used
                to set the limit where merge join starts to use temporary
                files for large equivalence classes and when answers
                cached in lists are put on temporary files.</p>
            </item>
            <item>
              <p>There is a new callback <c>is_sorted_key</c> to
                be supplied as an option to <c>table/2</c>.</p>
            </item>
            <item>
              <p>QLC analyzes each and every QLC expression when
                trying to find constants for the lookup function.
                Hitherto only QLC expressions with exactly one generator
                were analyzed.</p>
              <p>Note that only filters with guard
                syntax placed immediately after the generator are
                analyzed. The restriction to guard filters is an
                incompatible change. See <c>qlc(3)</c> for further
                details.</p>
            </item>
            <item>
              <p>In a similar way several match specifications
                for traversal of QLC tables can be utilized for different
                generators of one single QLC expression.</p>
            </item>
            <item>
              <p>A bug has been fixed: when caching answers to a
                sufficiently complex query it could happen that some
                answers were not returned.</p>
            </item>
          </list>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-6038</p>
        </item>
        <item>
          <p>The Erlang pretty printer (<c>erl_pp</c>) is now much
            faster when the code is deeply nested. A few minor bugs
            have been fixed as well.</p>
          <p>Own Id: OTP-6227 Aux Id: OTP-5924 </p>
        </item>
        <item>
          <p>The Erlang shell now tries to garbage collect large
            binaries. Under certain circumstances such binaries could
            otherwise linger on for an indefinite amount of time.</p>
          <p>Own Id: OTP-6239</p>
        </item>
        <item>
          <p>To help Dialyzer find more bugs, many functions in the
            Kernel and STDLIB applications now only accept arguments
            of the type that is documented.</p>
          <p>For instance, the functions <c>lists:prefix/2</c> and
            <c>lists:suffix/2</c> are documented to only accept lists
            as their arguments, but they actually accepted anything
            and returned <c>false</c>. That has been changed so that
            the functions cause an exception if one or both arguments
            are not lists.</p>
          <p>Also, the <c>string:strip/3</c> function is documented
            to take a character argument that is a character to strip
            from one or both ends of the string. Given a list instead
            of a character, it used to do nothing, but will now cause
            an exception.</p>
          <p>Dialyzer will find most cases where those functions
            are passed arguments of the wrong type.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-6295</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14.1</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The functions <c>c:y/1,2</c> which call
            <c>yecc:file/1,2</c> are now listed by
            <c>c:help/0</c>.</p>
          <p>Documentation of <c>c:y/1,2</c> has been added to
            <c>c(3)</c>.</p>
          <p>The fact that the control sequence character <c>s</c>
            recognizes binaries and deep character lists has been
            documented in <c>io(3)</c>. This feature was added in
            R11B-0 (OTP-5403).</p>
          <p>Own Id: OTP-6140</p>
        </item>
        <item>
          <p>The shell command rr() sometimes failed to read record
            definitions from file(s). This problem has been fixed.</p>
          <p>Own Id: OTP-6166 Aux Id: OTP-5878 </p>
        </item>
        <item>
          <p>The nonlocal function handler in <c>erl_eval</c>, which
            is used for implementing the restricted mode of the
            Erlang shell, did not handle calls to
            <c>erlang:apply/3</c> correctly. This bug has been fixed.</p>
          <p>Own Id: OTP-6169 Aux Id: seq10374 </p>
        </item>
        <item>
          <p>ets:rename/1 could deadlock, or crash the SMP emulator
            when the table wasn't a named table.</p>
          <p>ets:next/2, and ets:prev/2 could return erroneous results
            on the SMP emulator.</p>
          <p>Own Id: OTP-6198 Aux Id: seq10392, seq10415 </p>
        </item>
        <item>
          <p>When closing a Dets table the space management data was
            sometimes saved in such a way that opening the table
            could not be done without repairing the file. This bug
            has been fixed.</p>
          <p>Own Id: OTP-6206</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.14</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>A bugfix in QLC: two of the call-back functions used
            for implementing QLC tables, <c>TraverseFun</c> and
            <c>LookupFun</c>, are now allowed to return a term other
            than a list. Such a term is immediately returned as the
            results of the current query, and is useful mostly for
            returning error tuples.</p>
          <p>Several other minor bugs have been also been fixed.</p>
          <p>Own Id: OTP-5195</p>
        </item>
        <item>
          <p>The STDLIB modules <c>error_logger_file_h</c> and
            <c>error_logger_tty_h</c> now read the environment
            variable <c>utc_log</c> from the SASL application.</p>
          <p>Own Id: OTP-5535</p>
        </item>
        <item>
          <p><c>ets:info/1</c> has been corrected to behave according
            to the documentation and return a list of tuples, not a
            tuple with tuples.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-5639</p>
        </item>
        <item>
          <p>Referencing a so far undeclared record from the default
            value of some record declaration is from now on considered
            an error by the linter. It is also an error if the default
            value of a record declaration uses or binds a variable.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-5878</p>
        </item>
        <item>
          <p>When a file <c>.hrl</c> file is included using
            <c>-include_lib</c>, the include path is temporarily
            updated to include the directory the <c>.hrl</c> file was
            found in, which will allow that <c>.hrl</c> file to itself
            include files from the same directory as itself using
            <c>-include</c>. (Thanks to Richard Carlsson.)</p>
          <p>Own Id: OTP-5944</p>
        </item>
        <item>
          <p>Corrected <c>filelib:ensure_dir/1</c> which sometimes
            returned <c>true</c> and sometimes <c>ok</c> to always
            return <c>ok</c> when successful. This goes against the
            documentation which said <c>true</c>, but <c>ok</c> was
            judged to be a more logical return value.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-5960 Aux Id: seq10240 </p>
        </item>
        <item>
          <p>The shell now handles records better when used in calls
            on the form <c>{Module, Function}(ArgList)</c>.</p>
          <p>Own Id: OTP-5990 Aux Id: OTP-5876 </p>
        </item>
        <item>
          <p>The functions <c>lists:ukeysort/2</c> and
            <c>lists:ukeymerge/3</c> have been changed in such a way
            that two tuples are considered equal if their keys
            match.</p>
          <p>For the sake of consistency, <c>lists:usort/2</c> and
            <c>lists:umerge/3</c> have been modified too: two elements
            are considered equal if they compare equal.</p>
          <p>The <c>file_sorter</c> module has been modified in a
            similar way: the <c>unique</c> option now applies to the
            key (<c>keysort()</c> and <c>keymerge()</c>) and the
            ordering function (the option <c>{order, Order} </c>).</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-6019</p>
        </item>
        <item>
          <p>Correction in documentation for
            <c>ets:update_counter/3</c>; failure with <c>badarg</c>
            also if the counter to be updated is the key.</p>
          <p>Own Id: OTP-6072</p>
        </item>
        <item>
          <p>When sorting terms using the <c>file_sorter</c> module
            and an ordering fun, the sort was not always stable. This
            bug has been fixed.</p>
          <p>Own Id: OTP-6088</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Improvements of the linter:</p>
          <list type="bulleted">
            <item>
              <p>The <c>compile</c> attribute is recognized after
                function definitions.</p>
            </item>
            <item>
              <p>The new compiler option
                <c>nowarn_deprecated_function</c> can be used for
                turning off warnings for calls to deprecated functions.</p>
            </item>
            <item>
              <p>The new compiler option
                <c>{nowarn_unused_function,[{Name,Arity}]}</c> turns off
                warnings for unused local functions for the mentioned
                functions. The new options
                <c>{nowarn_deprecated_function,[{Module,Name,Arity}]}</c>
                and <c>{nowarn_bif_clash,[{Name,Arity}]}</c> work
                similarly.</p>
            </item>
          </list>
          <p>The Erlang code preprocessor <c>epp</c> now recognizes
            the <c>file</c> attribute. This attribute is meant to be
            used by tools such as Yecc that generate source code
            files.</p>
          <p>Own Id: OTP-5362</p>
        </item>
        <item>
          <p>The formatting option <c>~s</c> of <c>io:fwrite</c> and
            <c>io_lib:fwrite</c> has been extended to handle arguments
            that are binaries or I/O lists.</p>
          <p>Own Id: OTP-5403</p>
        </item>
        <item>
          <p>The control sequences <c>p</c> and <c>P</c> of the
            <c>Format</c> argument of the functions
            <c>io:format/2,3</c> and <c>io_lib:format/2</c> have been
            changed as to display the contents of binaries containing
            printable characters as strings.</p>
          <p>Own Id: OTP-5485</p>
        </item>
        <item>
          <p>The linter emits warnings for functions exported more
            than once in <c>export</c> attributes.</p>
          <p>Own Id: OTP-5494</p>
        </item>
        <item>
          <p>A manual for STDLIB has been added, <c>stdlib(6)</c>. It
            mentions the configuration parameters for the Erlang
            shell.</p>
          <p>Own Id: OTP-5530</p>
        </item>
        <item>
          <p>Added the <c>zip</c> module with functions for reading
            and creating zip archives. See <c>zip(3)</c>.</p>
          <p>Own Id: OTP-5786</p>
        </item>
        <item>
          <p>Simple-one-for-one supervisors now store the pids of
            child processes using <c>dict</c> instead of a list. This
            significantly improves performance when there are many
            dynamic supervised child processes. (Thanks to Micka&euml;l
            R&eacute;mond et al.)</p>
          <p>Own Id: OTP-5898</p>
        </item>
        <item>
          <p>When given the new option '<c>strict_record_tests</c>',
            the compiler will generate code that verifies the record
            type for '<c>R#record.field</c>' operations in guards. Code
            that verifies record types in bodies has already been
            generated since R10B, but in this release there will be a
            '<c>{badrecord,RecordTag}</c>' instead of a
            '<c>badmatch</c>' if the record verification test fails.
            See the documentation for the <c>compile</c> module for
            more information.</p>
          <p>The Erlang shell always applies strict record tests.</p>
          <p>Own Id: OTP-5915 Aux Id: OTP-5714 </p>
        </item>
        <item>
          <p>The Erlang pretty printer (<c>erl_pp</c>) now tries to
            insert line breaks at appropriate places.</p>
          <p>Own Id: OTP-5924</p>
        </item>
        <item>
          <p>The <c>public</c> option has been removed from
            <c>digraph:new/1</c>. The reason is that several
            functions in the <c>digraph</c> module are implemented
            using multiple ETS accesses, which is not thread safe.
            (Thanks to Ulf Wiger.)</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-5985</p>
        </item>
        <item>
          <p>The function <c>lists:keyreplace/4</c> checks that the
            fourth argument (<c>NewTuple</c>) is a tuple.</p>
          <p>Own Id: OTP-6023</p>
        </item>
        <item>
          <p>Added an example of how to reconstruct source code from
            debug info (abstract code) to <c>beam_lib(3)</c>. (Thanks
            to Mats Cronqvist who wrote the example.)</p>
          <p>Own Id: OTP-6073</p>
        </item>
        <item>
          <p>The new compiler option <c>warn_unused_record</c> is used
            for finding unused locally defined record types.</p>
          <p>Own Id: OTP-6105</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.12</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p><c>shell_default:xm/1</c> has been added. It calls
            <c>xref:m/1</c>.</p>
          <p>Own Id: OTP-5405 Aux Id: OTP-4101 </p>
        </item>
        <item>
          <p>Warnings are output whenever so far undeclared records are
            referenced from some default value of a record
            declaration. In STDLIB 1.14 (R11B) such forward references
            will cause a compilation error.</p>
          <p>Own Id: OTP-5878</p>
        </item>
        <item>
          <p>The linter's check of the <c>deprecated</c> attribute did
            not take the compile option <c>export_all</c> into
            account. This bug has been fixed.</p>
          <p>Own Id: OTP-5917</p>
        </item>
        <item>
          <p>The Erlang pretty printer did not handle <c>try/catch</c>
            correctly. This bug has been fixed.</p>
          <p>Own Id: OTP-5926</p>
        </item>
        <item>
          <p>Corrected documentation for <c>lists:nthtail/3</c>.</p>
          <p>Added documentation for <c>lists:keymap/3</c>.</p>
          <p>Tried to clarify some other type declarations and
            function descriptions in <c>lists(3)</c>.</p>
          <p>Corrected documentation for <c>timer:now_diff/2</c>.</p>
          <p>Fixed broken links in <c>gen_fsm(3)</c>,
            <c>gen_server(3)</c>, <c>io_lib(3)</c> and <c>lib(3)</c>.</p>
          <p>Own Id: OTP-5931</p>
        </item>
        <item>
          <p>Type checks have been added to functions in
            <c>lists.erl</c>.</p>
          <p>Own Id: OTP-5939</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The new STDLIB module <c>erl_expand_records</c> expands
            records in abstract code. It is used by the Erlang shell,
            which means that Compiler is no longer used by the shell.</p>
          <p>Own Id: OTP-5876 Aux Id: OTP-5435 </p>
        </item>
        <item>
          <p>The compiler will now warn that the
            <c>megaco:format_versions/1</c> function is deprecated.</p>
          <p>Own Id: OTP-5976</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.11</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>When calling <c>gen_server:enter_loop</c> with a
            registered server name, it was only checked that the
            registered name existed, not that it actually was the
            name of the calling process.</p>
          <p>Own Id: OTP-5854</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>More detail on <c>beam_lib:version/1</c> in
            documentation.</p>
          <p>Own Id: OTP-5789</p>
        </item>
        <item>
          <p>The new function <c>io:read/3</c> works like
            <c>io:read/1,2</c> but takes a third argument,
            <c>StartLine</c>.</p>
          <p>Own Id: OTP-5813</p>
        </item>
        <item>
          <p>The new function <c>gen_fsm:enter_loop/4,5,6</c>, similar
            to <c>gen_server:enter_loop/3,4,5</c>, has been added.</p>
          <p>Own Id: OTP-5846 Aux Id: seq10163 </p>
        </item>
        <item>
          <p>The function <c>c:i/1</c> is now exported.</p>
          <p>Own Id: OTP-5848 Aux Id: seq10164 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.10</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>A couple of type errors have been fixed in <c>sofs</c>.</p>
          <p>Own Id: OTP-5739</p>
        </item>
        <item>
          <p>The pre-processor used to complain that the macro
            definition '<c>-define(S(S), ??S).</c>' was circular,
            which it isn't. (Thanks to Richard Carlsson.)</p>
          <p>Own Id: OTP-5777</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.9</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The linter, QLC and the module <c>erl_pp</c> did not
            handle the new '<c>fun M:F/A</c>' construct in all
            situations. This problem has been fixed.</p>
          <p>Own Id: OTP-5644</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The manual pages for most of the Kernel and some of
            the STDLIB modules have been updated, in particular
            regarding type definitions.</p>
          <p>The documentation of the return value for
            <c>erts:info/1</c> has been corrected.</p>
          <p>The documentation for <c>erlang:statistics/1</c> now
            lists all possible arguments.</p>
          <p>Own Id: OTP-5360</p>
        </item>
        <item>
          <p>Replaced some tuple funs with the new <c>fun M:F/A</c>
            construct.</p>
          <p>The high-order functions in the lists module no longer
            accept bad funs under any circumstances.
            '<c>lists:map(bad_fun, [])</c>' used to return
            '<c>[]</c>' but now causes an exception.</p>
          <p>Unused, broken compatibility code in the <c>ets</c>
            module was removed. (Thanks to Dialyzer.)</p>
          <p>Eliminated 5 discrepancies found by Dialyzer in the
            Appmon application.</p>
          <p>Own Id: OTP-5633</p>
        </item>
        <item>
          <p>The <c>c:i/0</c> function will now run in a paged mode if
            there are more than 100 processes in the system. (Thanks
            to Ulf Wiger.)</p>
          <p><c>erlang:system_info(process_count)</c> has been
            optimized and does now return exactly the same value as
            <c>length(processes())</c>. Previously
            <c>erlang:system_info(process_count)</c> did not include
            exiting processes which are included in
            <c>length(processes())</c>.</p>
          <p>The <c>+P</c> flag for <c>erl</c>, which sets the maximum
            number of processes allowed to exist at the same, no longer
            accepts values higher than 134217727. (You will still
            probably run out of memory before you'll be able to reach
            that limit.)</p>
          <p>Own Id: OTP-5645 Aux Id: seq9984 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.8</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Very minor corrections in <c>beam_lib</c> and its
            documentation.</p>
          <p>Own Id: OTP-5589</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The <c>erlang:port_info/1</c> BIF is now documented.
            Minor corrections of the documentation for
            <c>erlang:port_info/2</c>.</p>
          <p>Added a note to the documentation of the <c>math</c>
            module that all functions are not available on all
            platforms.</p>
          <p>Added more information about the '<c>+c</c>' option in
            the <c>erl</c> man page in the ERTS documentation.</p>
          <p>Own Id: OTP-5555</p>
        </item>
        <item>
          <p>The new <c>fun M:F/A</c> construct creates a fun that
            refers to the latest version of <c>M:F/A</c>. This syntax is
            meant to replace tuple funs <c>{M,F}</c> which have many
            problems.</p>
          <p>The new type test <c>is_function(Fun,A)</c> (which may be
            used in guards) test whether <c>Fun</c> is a fun that can be
            applied with <c>A</c> arguments. (Currently, <c>Fun</c> can
            also be a tuple fun.)</p>
          <p>Own Id: OTP-5584</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.7</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p><c>filelib:wildcard/2</c> was broken (it ignored its
            second argument).</p>
          <p>Also, <c>filelib:wildcard("Filename")</c> (where the
            argument does not contain any meta-characters) would
            always return <c>["Filename"]</c>. Corrected so that an
            empty list will be returned if <c>"Filename"</c> does not
            actually exist. (Same correction in
            <c>filelib:wildcard/2</c>.) (This change is a slight
            incompatibility.)</p>
          <p><c>filelib:wildcard/1,2</c> will generate a different
            exception when given bad patterns such as <c>"{a,"</c>. The
            exception used to be caused by
            '<c>exit(missing_delimiter)</c>' but is now
            '<c>erlang:error({badpattern,missing_delimiter})</c>'.</p>
          <p>Own Id: OTP-5523 Aux Id: seq9824 </p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Further improvements of encrypted debug info: New option
            <c>encrypt_debug_info</c> for compiler.</p>
          <p>Own Id: OTP-5541 Aux Id: seq9837 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.6</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>When opening a Dets table read only an attempt was
            sometimes made to re-hash the table resulting in an error
            message. This problem has been fixed.</p>
          <p>Own Id: OTP-5487 Aux Id: OTP-4989 </p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>It is now possible to encrypt the debug information in
            Beam files, to help keep the source code secret. See the
            documentation for <c>compile</c> on how to provide the key
            for encrypting, and the documentation for <c>beam_lib</c>
            on how to provide the key for decryption so that tools such
            as the Debugger, <c>xref</c>, or <c>cover</c> can be used.</p>
          <p>The <c>beam_lib:chunks/2</c> functions now accepts an
            additional chunk type <c>compile_info</c> to retrieve
            the compilation information directly as a term. (Thanks
            to Tobias Lindahl.)</p>
          <p>Own Id: OTP-5460 Aux Id: seq9787 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.5</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Closing a Dets table kept in RAM would cause a crash if
            the file could not be written. This problem has been
            fixed by returning an error tuple.</p>
          <p>Own Id: OTP-5402</p>
        </item>
        <item>
          <p><c>erl_pp</c> now correctly pretty-prints <c>fun F/A</c>.</p>
          <p>Own Id: OTP-5412</p>
        </item>
        <item>
          <p>The Erlang shell failed if the compiler was not in the
            code path. This problem has been fixed, but in order to
            evaluate records the compiler is still needed.</p>
          <p>Own Id: OTP-5435</p>
        </item>
        <item>
          <p>Corrected the example in the documentation for
            <c>ets:match/2</c>. Also clarified that
            <c>ets:update_counter/3</c> updates the counter atomically.
            (Thanks to Anders Svensson.)</p>
          <p>Own Id: OTP-5452 Aux Id: seq9770, seq9789 </p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The possibility to start the Erlang shell in parallel
            with the rest of the system was reintroduced for
            backwards compatibility in STDLIB 1.13.1. The flag to be
            used for this is now called <c>async_shell_start</c> and has
            been documented. New shells started from the JCL menu are
            not synchronized with <c>init</c> anymore. This makes it
            possible to start a new shell (e.g. for debugging purposes)
            even if the initial shell has not come up.</p>
          <p>Own Id: OTP-5406 Aux Id: OTP-5218 </p>
        </item>
        <item>
          <p>The compiler will now produce warnings when using the
            deprecated functions in the <c>snmp</c> module.</p>
          <p>Own Id: OTP-5425</p>
        </item>
        <item>
          <p>The function <c>c:zi/0</c> has been removed. Use
            <c>c:i/0</c> instead.</p>
          <p>Own Id: OTP-5432</p>
        </item>
        <item>
          <p>Corrected two minor bugs found by the Dialyzer:
            Calling a parameterized module from a restricted shell
            (i.e. if <c>shell:start_restricted/1</c> has been used)
            would crash the shell evaluator. A debug printout in
            <c>gen_fsm</c> had a clause that would never match; causing
            less information to be printed.</p>
          <p>And a somewhat more serious one also found by
            Dialyzer: <c>rpc:yield/1</c> would crash unless the call
            started by <c>rpc:async_call/4</c> had already finished;
            <c>rpc:nb_yield(Key,infinity)</c> would also crash.</p>
          <p>Cleaned up and removed redundant code found by
            Dialyzer in <c>erlang:dmonitor_p/2</c>.</p>
          <p>Own Id: OTP-5462</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.4</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Bugs in the Erlang shell have been fixed.</p>
          <p>Own Id: OTP-5327</p>
        </item>
        <item>
          <p>Some dead code reported by Dialyzer was eliminated.</p>
          <p>A bug in <c>dbg</c> when tracing to wrap trace files has
            been corrected. It failed to delete any already existing
            wrap trace files with the same names when starting a new
            wrap trace.</p>
          <p>Own Id: OTP-5329</p>
        </item>
        <item>
          <p>The linter could output invalid warnings about bit
            patterns in record initializations. This problem has been
            fixed.</p>
          <p>Own Id: OTP-5338</p>
        </item>
        <item>
          <p><c>ordsets:is_set(NoList)</c>, where <c>NoList</c> is any
            term except a list, would crash. For consistency with
            <c>sets:is_set/1</c> and <c>gb_sets:is_set/1</c>, it now
            returns <c>false</c>.</p>
          <p>Own Id: OTP-5341</p>
        </item>
        <item>
          <p>A BIF <c>erlang:raise/3</c> has been added. See the manual
            for details. It is intended for internal system programming
            only, advanced error handling.</p>
          <p>Own Id: OTP-5376 Aux Id: OTP-5257 </p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The <c>deprecated</c> attribute is now checked by the
            linter. See <c>xref(3)</c> for a description of the
            <c>deprecated</c> attribute.</p>
          <p>Own Id: OTP-5276</p>
        </item>
        <item>
          <p>The restricted shell will now indicate if the return
            value from a user predicate is on an incorrect form.</p>
          <p>Own Id: OTP-5335</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.3</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Bugs concerning unused and shadowed variables have been
            fixed in the linter.</p>
          <p>Own Id: OTP-5091</p>
        </item>
        <item>
          <p>A bug in the evaluator that caused the shell to choke on
            bit syntax expressions has been fixed.</p>
          <p>Own Id: OTP-5237</p>
        </item>
        <item>
          <p><c>io:format/2</c> et.al no longer crashes for some
            combinations of precision and value for format character
            "g". Previously it crashed if the precision P was 4 or lower
            and the absolute value of the float to print was lower
            than 10^4 but 10^(P-1) or higher. Now it will not crash
            depending on the value of the float.</p>
          <p>Own Id: OTP-5263</p>
        </item>
        <item>
          <p>Bugs in the handling of the bit syntax have been fixed in
            the Erlang shell.</p>
          <p>Own Id: OTP-5269</p>
        </item>
        <item>
          <p><c>gb_sets:del_element/2</c> was changed to do the
            same as <c>gb_sets:delete_any/2</c> which was the
            original intention, not as <c>gb_sets:delete/2</c>. Code
            that relies on <c>gb_sets:del_element/2</c> causing an
            error if the element does not exist must be changed to
            call <c>gb_sets:delete/2</c> instead.</p>
          <p>The documentation was also updated to explicitly
            document functions that were only referred to as
            'aliases' of a documented function. Also, a list of all
            functions common to the <c>gb_sets</c>, <c>sets</c>, and
            <c>ordsets</c> was added.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-5277</p>
        </item>
        <item>
          <p>Debug messages have been removed from the QLC module.</p>
          <p>Own Id: OTP-5283</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The size of continuations returned from
            <c>dets:match/1,3</c>, <c>dets:match_object/1,3</c>, and
            <c>dets:select/1,3</c> has been reduced. This affects the
            amount of data Mnesia sends between nodes while
            evaluating QLC queries.</p>
          <p>Own Id: OTP-5232</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.2</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The <c>-rsh</c> switch for starting a remote shell
            (introduced with OTP-5210) clashed with an already existing
            switch used by <c>slave</c>. Therefore the switch for
            the remote shell is now instead named <c>-remsh</c>.</p>
          <p>Own Id: OTP-5248 Aux Id: OTP-5210 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>STDLIB 1.13.1</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The Pman 'trace shell' functionality was broken as has
            now been fixed. Furthermore, Pman could not correctly
            find the pid of the active shell if more than one shell
            process was running on the node. This has also been
            corrected.</p>
          <p>Own Id: OTP-5191</p>
        </item>
        <item>
          <p>When the undocumented feature "parameterized modules" was
            used, the ?MODULE macro did not work correctly.</p>
          <p>Own Id: OTP-5224</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>You can now start Erlang with the <c>-rsh</c> flag which
            gives you a remote initial shell instead of a local one.
            Example:</p>
          <pre>
            erl -sname this_node -rsh other_node@other_host
          </pre>
          <p>Own Id: OTP-5210</p>
        </item>
        <item>
          <p>The man page for the <c>lists</c> module has been updated
            with description of the new <c>zip</c>, <c>unzip</c>,
            and <c>partition/2</c> functions.</p>
          <p>Own Id: OTP-5213</p>
        </item>
        <item>
          <p>The top level group leader used to be listed as job #1 in
            the job list in JCL mode. Since there is no shell
            associated with this process that can be connected to, it
            will no longer be listed.</p>
          <p>Own Id: OTP-5214</p>
        </item>
        <item>
          <p>The possibility to start the Erlang shell in parallel
            with the rest of the system has been reintroduced for
            backwards compatibility. Note that this old behaviour is
            error prone and should not be used unless for some reason
            necessary.</p>
          <p>Own Id: OTP-5218 Aux Id: seq9534 </p>
        </item>
        <item>
          <p>The <c>shell</c> commands <c>rr/1,2,3</c> now accepts
            wildcards when reading record definitions from BEAM
            files.</p>
          <p>Own Id: OTP-5226</p>
        </item>
      </list>
    </section>
  </section>
</chapter>