aboutsummaryrefslogblamecommitdiffstats
path: root/lib/megaco/doc/src/notes.xml
blob: 99a37844020b8a8c84e5b60a22d3d3e5e7455a24 (plain) (tree)
1
2
3
4
5
6
7
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294





                                        
                                        







                                                                         
 



                                                                            
 
















                                                                                   























                                                                   
    
              
   
 

                            









                                                                   




                                                                       

               






                                                                  
             






                            
                              
 
                                                                




                                                  
    
              
   
 

                            
                                                                              
                                                                   



                                 



                                                                       
               





                                                                  










                                                












                                                                             





               
                          


           








































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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

<chapter>
  <header>
    <copyright>
      <year>2000</year><year>2010</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>Megaco Release Notes</title>
    <prepared>Lars Thors&eacute;n, H&aring;kan Mattsson, Micael Karlberg</prepared>
    <docno></docno>
    <date></date>
    <rev>%VSN%</rev>
    <file>notes.xml</file>
  </header>
  <p>This document describes the changes made to the Megaco system
    from version to version. The intention of this document is to
    list all incompatibilities as well as all enhancements and
    bugfixes for every release of Megaco. Each release of Megaco
    thus constitutes one section in this document. The title of each
    section is the version number of Megaco.</p>

  <section>
    <title>Megaco 3.14.1</title>

    <p>Version 3.14.1 supports code replacement in runtime from/to
      version 3.14, 3.13, 3.12 and 3.11.3.</p>

    <section>
      <title>Improvements and new features</title>

<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>A minor compiler related performance improvement. </p>
          <p>Own Id: OTP-8561</p>
        </item>

     </list>

    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>A raise condition when, during high load, processing
            both the original and a resent message and delivering
            this as two separate messages to the user. </p>
          <p>Note that this solution only protects against multiple
            reply deliveries! </p>
          <p>Own Id: OTP-8529</p>
          <p>Aux Id: Seq 10915</p>
        </item>

        <item>
          <p>Fix shared libraries installation. </p>
          <p>The flex shared lib(s) were incorrectly installed as data 
            files. </p>
          <p>Peter Lemenkov</p>
          <p>Own Id: OTP-8627</p>
        </item>

        <item>
          <p>Eliminated a possible raise condition while creating 
            pending counters. </p>
          <p>Own Id: OTP-8634</p>
	  <p>Aux Id: Seq 11579</p>
        </item>

      </list>

    </section>

  </section> <!-- 3.14.1 -->


  <section>
    <title>Megaco 3.14</title>

    <p>Version 3.14 supports code replacement in runtime from/to
      version 3.13, 3.12 and 3.11.3.</p>

    <section>
      <title>Improvements and new features</title>

<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Various changes to configure and makefile(s) to facilitate cross 
            compilation (and other build system improvements). </p>
          <p>Own Id: OTP-8323</p>
        </item>

        <item>
          <p>Added a help target in the test Makefile to explain 
            the most useful make targets, used when testing the 
            application using the test-server provided with megaco.</p>
          <p>Own Id: OTP-8362</p>
        </item>
 
        <item>
          <p>Adapted megaco_filter to the new internal format.</p>
          <p>Own Id: OTP-8403</p>
        </item>
     </list>

    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Callbacks, when the callback module is unknown (undefined), 
            results in warning messages. </p>
          <p>A raise condition scenario. As part of a cancelation operation,
            replies with waiting acknowledgements is cancelled. This includes
            informing the user (via a call to the handle_trans_ack callback 
            function). It is possible that at this point the connection data 
            has been removed, which makes it impossible for megaco to 
            perform this operation, resulting in the warning message. The 
            solution is to also store the callback module with the other 
            reply information, to be used when cleaning up after a 
            cancelation. </p>
          <p>Own Id: OTP-8328</p>
	  <p>Aux Id: Seq 11384</p>
        </item>

      </list>

    </section>

  </section> <!-- 3.14 -->


  <section>
    <title>Megaco 3.13</title>

    <p>Version 3.13 supports code replacement in runtime from/to
      version 3.12 and 3.11.3.</p>

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>A minor optimization by using ets:update_element
            instead of ets:insert for some table updates.</p>
          <p>Own Id: OTP-8239</p>
	  <!-- <p>Aux Id: Seq 11332</p> -->
        </item>

        <item>
          <p>The documentation is now built with open source tools 
            (<em>xsltproc</em> and <em>fop</em>) that exists on most 
            platforms. One visible change is that the frames are removed.</p>
          <p>Own Id: OTP-8249</p>
        </item>

      </list>

    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Replacing obsolete guard tests.</p>
          <p>Own Id: OTP-8164</p>
	  <p>Aux Id: Seq 11332</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.13 -->


  <section>
    <title>Megaco 3.12</title>

<!--
    <p>Version 3.12 supports code replacement in runtime from/to
      version 3.11.3.</p>
-->

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Improve handling of async transaction reply. </p>
          <p>For asynchronous requests, issued using 
            <seealso marker="megaco#cast">megaco:cast/3</seealso>, 
            the reply will be delivered using the 
            <seealso marker="megaco_user#trans_reply">handle_trans_reply/4,5</seealso> 
            callback function. </p>
          <p>If a receiver of a request, issued using 
            <seealso marker="megaco#cast">megaco:cast/3</seealso>, 
            does not reply in time, megaco re-sends the request. 
            If the receiver of the request sends the reply at the same 
            time as megaco re-sends, it may also send a reply to the 
            resent request (thinking the first reply got lost). These 
            two replies may arrive more or less at the same time, 
            causing confusion. </p>
          <p>In order to improve this situation, a number of 
            improvements have been done: </p>
          <list type="bulleted">
            <item>
              <p>When the first reply arrives, a timer, request-keep-alive, 
                is started. This timer is used to decide when to stop 
                accepting replies as legitimate. </p>
              <p>The timeout time for the timer is specified by the
                config option <em>request_keep_alive_timout</em>, 
                which can be set per 
                <seealso marker="megaco#ui_request_keep_alive_timeout">user</seealso> 
                or per 
                <seealso marker="megaco#ci_request_keep_alive_timeout">connection</seealso>. </p>
	    </item>
            <item>
              <p>We also keep track of how many replies has been received
                (we do this as long as the request-keep-alive timer is 
                running). </p>
            </item>
            <item>
              <p>Each reply that arrives while the request-keep-alive timer 
                is running (including the first) will be delivered using the 
                <seealso marker="megaco_user#trans_reply">handle_trans_reply/4,5</seealso> 
                callback function, but with the UserReply augmented to
                include a serial number indicating which reply number this
                is. 
                The <em>first</em> reply to arrive, 
                will be numbered <em>one (1)</em>. </p>
            </item>
            <item>
              <p>Replies arriving after the timer has expired will be delivered
                in the same way as before, using the 
                <seealso marker="megaco_user#unexpected_trans">handle_unexpected_trans/3,4</seealso> 
                callback function. </p>
	     </item>  
            <item>
              <p>Note that if the timer was <em>not</em> configured, 
                megaco will act exactly as before! </p>
            </item>
          </list>
          <p>Own Id: OTP-8183</p>
	  <p>Aux Id: Seq 11393</p>
        </item>

      </list>

    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>If the megaco app received a transaction reply, for a request 
            issued using the
	    <seealso marker="megaco#call">call/3</seealso> function, from 
            the wrong remote entity (wrong MId)), megaco would still deliver 
            the reply (<seealso marker="megaco#call">call/3</seealso> 
            returnes) as if from the correct remote entity (right MId). </p>
          <p>This has been changed so that the function now returns with
            an error reason. </p>
          <p>See <seealso marker="megaco#call">call/3</seealso> for more 
            info. </p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-8212</p>
	  <p>Aux Id: Seq 11305</p>
        </item>

      </list>

    </section>

  </section> <!-- 3.12 -->


  <section>
    <title>Megaco 3.11.3</title>

<!--
    <p>Version 3.11.3 supports code replacement in runtime from/to
      version 3.11.2, 3.11.1 and 3.11.</p>
-->

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Replacing obsolete guard tests.</p>
          <p>Own Id: OTP-8164</p>
	  <!-- <p>Aux Id: Seq 11332</p> -->
        </item>

        <item>
          <p>Added the config option 
            <seealso marker="megaco#ui_call_proxy_gc_timeout">call_proxy_gc_timeout</seealso>
            to be able to control the way unexpected replies (when requests issued 
            via calls to <seealso marker="megaco#call">call/3</seealso>)
            are handled. </p>
          <p>See
            <seealso marker="megaco#user_info">user_info/2</seealso>, 
            <seealso marker="megaco#conn_info">conn_info/2</seealso> and
            <seealso marker="megaco#call">call/3</seealso> for more info. </p>
          <p>Own Id: OTP-8167</p>
	  <p>Aux Id: Seq 11393</p>
        </item>

        <item>
          <p>Make flex scanner c89 compiler compliant.</p>
	  <p>Akira Kitada</p>
          <p>Own Id: OTP-8191</p>
	  <!-- <p>Aux Id: Seq 11332</p> -->
        </item>

      </list>

    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Replacing obsolete guard tests.</p>
          <p>Own Id: OTP-8164</p>
	  <p>Aux Id: Seq 11332</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.11.3 -->


  <section>
    <title>Megaco 3.11.2</title>

    <p>Version 3.11.2 supports code replacement in runtime from/to
      version 3.11.1 and 3.11.</p>

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Megaco was unnecessarily strict when parsing the SDP 
            attribute <c>maxptime</c> (leading or trailing spaces
            cased the value parse to fail). </p>
          <p>This has been improved so that leading and trailing 
            spaces are stripped before parsing the value. 
            The same has been done for the attribute <c>ptime</c>.</p>
          <p>Own Id: OTP-8123</p>
	  <p>Aux Id: Seq 11364</p>
        </item>

      </list>

    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>[text] The <em>unquoted</em> string BOTH was interpreted as the 
            <c>'BothToken'</c> token. This was a version 3 (prev3a, prev3b, 
            prev3c and v3) only. </p>
          <p>Own Id: OTP-8114</p>
	  <p>Aux Id: Seq 11353</p>
        </item>

        <item>
          <p>The reply proxy could crash if the timeout time calculation
            results in a negative number. This will result in a function 
            clause with resulting error report.</p>
          <p>Own Id: OTP-8081</p>
	  <p>Aux Id: Seq 11332</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.11.2 -->


  <section>
    <title>Megaco 3.11.1</title>

    <p>Version 3.11.1 supports code replacement in runtime from/to
      version 3.11.</p>

    <section>
      <title>Improvements and new features</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>In order to better utilize multi-core procs, the 
            <c>flex</c> (text) scanner has been improved. </p>
          <p>The <c>flex</c> (text) scanner has been made reentrant,
            <em>if</em> the flex utility supports this. Note that the version
            of <c>flex</c> supplied with some OS/distros (Solaris 10, 
            FreeBSD and OpenBSD to mention a few) may not support this, in which
            case the flex scanner will be non-reentrant, just as before. </p>
          <p>Own Id: OTP-7302</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>[text] The <em>unquoted</em> string BOTH was interpreted as the 
            <c>'BothToken'</c> token. This was a version 3 (prev3a, prev3b, 
            prev3c and v3) only. </p>
          <p>Own Id: OTP-8114</p>
	  <p>Aux Id: Seq 11353</p>
        </item>

        <item>
          <p>The reply proxy could crash if the timeout time calculation
            results in a negative number. This will result in a function 
            clause with resulting error report.</p>
          <p>Own Id: OTP-8081</p>
	  <p>Aux Id: Seq 11332</p>
        </item>

      </list>

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.11.1 -->


  <section>
    <title>Megaco 3.11</title>

<!--
    <p>Version 3.11 supports code replacement in runtime from/to
      version 3.10.1 and 3.10.0.1.</p>
-->

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>In order to better utilize multi-core procs, the 
            <c>flex</c> (text) scanner has been improved. </p>
          <p>The <c>flex</c> (text) scanner has been made reentrant,
            <em>if</em> the flex utility supports this. Note that the version
            of <c>flex</c> supplied with some OS/distros (Solaris 10, 
            FreeBSD and OpenBSD to mention a few) may not support this, in which
            case the flex scanner will be non-reentrant, just as before. </p>
          <p>Own Id: OTP-7302</p>
        </item>

      </list>
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>The (plain) text scanner could incorrectly identify
            character strings (any 17 char long string with the
            char t in the middle) as a TimeStampToken.</p>
          <p>Own Id: OTP-7249</p>
	  <p>Aux Id: Seq 10917</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.11 -->


  <section>
    <title>Megaco 3.10.1</title>

    <p>Version 3.10.1 supports code replacement in runtime from/to
      version 3.10.0.1, 3.10 and 3.9.4.</p>

    <section>
      <title>Improvements and new features</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Updated file headers.</p>
          <p>Own Id: OTP-7851</p>
	  <p>Aux Id: Seq 11140</p>
        </item>

      </list>
-->
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Unexpected <seealso marker="megaco_user#unexpected_trans">handle_unexpected_reply</seealso> callbacks. </p>
          <p>The <seealso marker="megaco_user">megaco_user</seealso> callback function 
            <seealso marker="megaco_user#unexpected_trans">handle_unexpected_reply</seealso> 
            could during high load be called with unexpected values for the Trans
            argument, such as an <c>TransactionReply</c> where <c>transactionResult</c> 
            had the value <c>{error, timeout}</c>. This was a result of a raise condition 
            and has now been fixed. </p>
          <p>Own Id: OTP-7926</p>
	  <p>Aux Id: Seq 11255</p>
        </item>

        <item>
          <p>[text] PropertyParm values cannot be quoted. </p>
          <p>It was not possible to encode a PropertyParm value as a quoted string 
            (unless it *had* to (has at least one RestChar)). The megaco text codec's 
            now also accepts quoted strings as PropertyParm values. </p>
          <p>Own Id: OTP-7936</p>
	  <p>Aux Id: Seq 11258</p>
        </item>

      </list>

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>If the transport module calls the 
            <seealso marker="megaco#process_received_message">process_received_message/5</seealso> 
            or 
            <seealso marker="megaco#receive_message">receive_message/5</seealso> 
            function(s) for the initial message, then the 
            <seealso marker="megaco_user#connect">handle_connect/3</seealso> 
            function will now be called and not the
            <seealso marker="megaco_user#connect">handle_connect/2</seealso> 
            function. </p>
          <p>Own Id: OTP-7713</p>
	  <p>Aux Id: Seq 11140</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.10.1 -->


  <section>
    <title>Megaco 3.10.0.1</title>

    <p>Version 3.10.0.1 supports code replacement in runtime from/to
      version 3.10 and 3.9.4 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Updated file headers.</p>
          <p>Own Id: OTP-7851</p>
	  <!-- <p>Aux Id: Seq 11140</p> -->
        </item>

      </list>
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Memory leak in the flex scanner. There was a memory
            leak in the flex scanner function handling 
            Property Parameters. </p>
          <p>Own Id: OTP-7700</p>
	  <p>Aux Id: Seq 11126</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>If the transport module calls the 
            <seealso marker="megaco#process_received_message">process_received_message/5</seealso> 
            or 
            <seealso marker="megaco#receive_message">receive_message/5</seealso> 
            function(s) for the initial message, then the 
            <seealso marker="megaco_user#connect">handle_connect/3</seealso> 
            function will now be called and not the
            <seealso marker="megaco_user#connect">handle_connect/2</seealso> 
            function. </p>
          <p>Own Id: OTP-7713</p>
	  <p>Aux Id: Seq 11140</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.10.0.1 -->


  <section>
    <title>Megaco 3.10</title>

    <p>Version 3.10 supports code replacement in runtime from/to
      version 3.9.4, 3.9.3, 3.9.2, 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Added new API function 
            <seealso marker="megaco#connect">megaco:connect/5</seealso> and
            the corresponding new <c>megaco_user</c> callback function 
            <seealso marker="megaco_user#connect">handle_connect/3</seealso>. 
            The purpose of this is to be able to pass information to the
            <seealso marker="megaco_user#connect">handle_connect/3</seealso> 
            function by calling the 
            <seealso marker="megaco#connect">megaco:connect/5</seealso> 
            function. </p>
          <p>Own Id: OTP-7713</p>
	  <p>Aux Id: Seq 11140</p>
        </item>

        <item>
          <p>Update file headers with new copyright notice. </p>
          <p>Own Id: OTP-7743</p>
        </item>

      </list>
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Memory leak in the flex scanner. There was a memory
            leak in the flex scanner function handling 
            Property Parameters. </p>
          <p>Own Id: OTP-7700</p>
	  <p>Aux Id: Seq 11126</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>If the transport module calls the 
            <seealso marker="megaco#process_received_message">process_received_message/5</seealso> 
            or 
            <seealso marker="megaco#receive_message">receive_message/5</seealso> 
            function(s) for the initial message, then the 
            <seealso marker="megaco_user#connect">handle_connect/3</seealso> 
            function will now be called and not the
            <seealso marker="megaco_user#connect">handle_connect/2</seealso> 
            function. </p>
          <p>Own Id: OTP-7713</p>
	  <p>Aux Id: Seq 11140</p>
        </item>

      </list>

    </section>
  </section> <!-- 3.10 -->


  <section>
    <title>Megaco 3.9.4</title>

    <p>Version 3.9.4 supports code replacement in runtime from/to
      version 3.9.3, 3.9.2, 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Miscellaneous dialyzer related and test case cleanup. </p>
          <p>Own Id: OTP-7614</p>
        </item>

      </list>
-->
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Segmenting a reply failed (with a badmatch) if the message 
            did not actually need to be segmented (e.g. was within the
            size limit, 
            <seealso marker="megaco#ui_max_pdu_size">max_pdu_size</seealso>). </p>
          <p>Own Id: OTP-7733</p>
	  <p>Aux Id: Seq 11168</p>
        </item>

        <item>
          <p>Improve the error handling of megaco_tcp for received 
            messages. </p>
          <p>Own Id: OTP-7728</p>
        </item>

      </list>

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.9.3.1 -->


  <section>
    <title>Megaco 3.9.3</title>

    <p>Version 3.9.3 supports code replacement in runtime from/to
      version 3.9.2, 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Miscellaneous dialyzer related and test case cleanup. </p>
          <p>Own Id: OTP-7614</p>
        </item>

      </list>
-->
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Memory leak in the flex scanner. There was a memory
            leak in the flex scanner function handling 
            Property Parameters. </p>
          <p>Own Id: OTP-7700</p>
	  <p>Aux Id: Seq 11126</p>
        </item>

      </list>

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.9.3 -->


  <section>
    <title>Megaco 3.9.2</title>

    <p>Version 3.9.2 supports code replacement in runtime from/to
      version 3.9.1.1, 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>Miscellaneous dialyzer related and test case cleanup. </p>
          <p>Own Id: OTP-7614</p>
        </item>

      </list>
-->
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>The text encoders (v1, v2, v3, ...) all failed to 
            properly encode the DigitMapDescriptor. </p>
          <p>Own Id: OTP-7671</p>
	  <p>Aux Id: Seq 11113</p>
        </item>

        <item>
          <p>The mini decoder some time incorrectly identifies 
            plain text as tokens. </p>
          <p>Own Id: OTP-7672</p>
	  <p>Aux Id: Seq 11103</p>
        </item>

      </list>

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.9.2 -->


  <section>
    <title>Megaco 3.9.1.1</title>

    <p>Version 3.9.1.1 supports code replacement in runtime from/to
      version 3.9.1, 3.9, 3.8.2, 3.8.1 and 3.8 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>Miscellaneous dialyzer related and test case cleanup. </p>
          <p>Own Id: OTP-7614</p>
        </item>

      </list>
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>[text] The flex scanner did not allow an empty quotedString
            in propertyParm. </p>
          <p>Own Id: OTP-7573</p>
	  <p>Aux Id: Seq 11062</p>
        </item>

        <item>
          <p>[text] Unable to decode a version 2 message with a
            topologyTriple containing an (optional) eventStream. </p>
          <p>Own Id: OTP-7576</p>
	  <p>Aux Id: Seq 11066</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.9.1.1 -->


  <section>
    <title>Megaco 3.9.1</title>

    <p>Version 3.9.1 supports code replacement in runtime from/to
      version 3.9, 3.8.2, 3.8.1 and 3.8 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>[text] The text codec(s) has been optimized. The parsing of 
            "property parameters" has been moved to the scanner(s). Which means 
            that when decoding messages containing property parameters, using 
            the flex scanner, decode time(s) will be reduced. The reduction 
            depends on the message, but can be as large as 25%. </p>
          <p>Own Id: OTP-7431</p>
        </item>

      </list>
-->
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>[text] The flex scanner did not allow an empty quotedString
            in propertyParm. </p>
          <p>Own Id: OTP-7573</p>
	  <p>Aux Id: Seq 11062</p>
        </item>

        <item>
          <p>[text] Unable to decode a version 2 message with a
            topologyTriple containing an (optional) eventStream. </p>
          <p>Own Id: OTP-7576</p>
	  <p>Aux Id: Seq 11066</p>
        </item>

      </list>

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.9.1 -->


  <section>
    <title>Megaco 3.9</title>

    <p>Version 3.9 supports code replacement in runtime from/to
      version 3.8.2, 3.8.1 and 3.8 except 
      when using any of the drivers (flex for text or asn1 for binary).</p>

    <section>
      <title>Improvements and new features</title>
<!--
      <p>-</p>
-->

      <list type="bulleted">
        <item>
          <p>[text] The text codec(s) has been optimized. The parsing of 
            "property parameters" has been moved to the scanner(s). Which means 
            that when decoding messages containing property parameters, using 
            the flex scanner, decode time(s) will be reduced. The reduction 
            depends on the message, but can be as large as 25%. </p>
          <p>Own Id: OTP-7431</p>
        </item>

      </list>
    </section>

    <section>
      <title>Fixed bugs and malfunctions</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>If a TransactionRequest arrives while a user is
            connecting (is in the callback function
            handle_connect as a result of a megaco:connect call),
            megaco responds with a pending message and then drops
            the request.</p>
          <p>These messages will now be silently dropped, forcing the 
            other side to resend. </p>
          <p>Own Id: OTP-7192</p>
	  <p>Aux Id: Seq 10884</p>
        </item>

      </list>
-->

    </section>

    <section>
      <title>Incompatibilities</title>
      <p>-</p>

<!--
      <list type="bulleted">
        <item>
          <p>For those implementing their own codec's, the new megaco_encoder
            behaviour will require three more functions. See above for more
            info. </p>
          <p>Own Id: OTP-7168</p>
	  <p>Aux Id: Seq 10867</p>
        </item>

      </list>
-->

    </section>
  </section> <!-- 3.9 -->


  <!-- section>
    <title>Release notes history</title>
    <p>For information about older versions see
      <url href="part_notes_history_frame.html">release notes history</url>.</p 
  </section> -->
</chapter>