1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
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
|
Patch Package: OTP 20.3
Git Tag: OTP-20.3
Date: 2018-03-14
Trouble Report Id: OTP-13882, OTP-14194, OTP-14204, OTP-14725,
OTP-14760, OTP-14816, OTP-14817, OTP-14820,
OTP-14828, OTP-14832, OTP-14839, OTP-14840,
OTP-14842, OTP-14843, OTP-14846, OTP-14847,
OTP-14850, OTP-14852, OTP-14854, OTP-14856,
OTP-14858, OTP-14860, OTP-14863, OTP-14871,
OTP-14873, OTP-14876, OTP-14879, OTP-14881,
OTP-14886, OTP-14889, OTP-14890, OTP-14891,
OTP-14892, OTP-14898, OTP-14908, OTP-14911,
OTP-14912, OTP-14913, OTP-14919, OTP-14920,
OTP-14921, OTP-14925, OTP-14926, OTP-14929,
OTP-14933, OTP-14938, OTP-14939, OTP-14940,
OTP-14942, OTP-14944, OTP-14947, OTP-14952,
OTP-14953
Seq num: ERIERL-117, ERIERL-124, ERIERL-144, ERL-527,
ERL-529, ERL-534, ERL-537, ERL-544, ERL-548,
ERL-551, ERL-564, ERL-565
System: OTP
Release: 20
Application: asn1-5.0.5, common_test-1.15.4,
compiler-7.1.5, crypto-4.2.1, dialyzer-3.2.4,
diameter-2.1.4, erts-9.3, hipe-3.17.1,
inets-6.5, kernel-5.4.3, observer-2.7,
runtime_tools-1.12.5, snmp-5.2.10, ssh-4.6.6,
ssl-8.2.4, stdlib-3.4.4, tools-2.11.2
Predecessor: OTP 20.2.4
Check out the git tag OTP-20.3, and build a full OTP system including
documentation. Apply one or more applications from this build as
patches to your installation using the 'otp_patch_apply' tool. For
information on install requirements, see descriptions for each
application version below.
---------------------------------------------------------------------
--- HIGHLIGHTS ------------------------------------------------------
---------------------------------------------------------------------
OTP-14760 Application(s): ssl
Added new API functions to facilitate cipher suite
handling
---------------------------------------------------------------------
--- POTENTIAL INCOMPATIBILITIES -------------------------------------
---------------------------------------------------------------------
OTP-14850 Application(s): erts, hipe
Related Id(s): PR-1664
Fix HiPE bug for binary constructs like <<X/utf8>>
which could in rare cases cause faulty results or VM
crash.
This fix affects both the hipe compiler and erts
runtime in an *incompatible* way. Old hipe compiled
files need to be recompiled to load and run properly as
native.
---------------------------------------------------------------------
--- asn1-5.0.5 ------------------------------------------------------
---------------------------------------------------------------------
The asn1-5.0.5 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-13882 Application(s): asn1
Related Id(s): ERIERL-144
Dialyzer suppression has been added for the generated
ASN.1 helper function to_bitstring/1 that previously
created irrelevant warnings.
Full runtime dependencies of asn1-5.0.5: erts-7.0, kernel-3.0,
stdlib-2.0
---------------------------------------------------------------------
--- common_test-1.15.4 ----------------------------------------------
---------------------------------------------------------------------
The common_test-1.15.4 application can be applied independently of
other applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14953 Application(s): common_test
Fixed problem with 'skip_groups' in combination with
'all suites' option in test specification.
Full runtime dependencies of common_test-1.15.4: compiler-6.0,
crypto-3.6, debugger-4.1, erts-7.0, inets-6.0, kernel-4.0,
observer-2.1, runtime_tools-1.8.16, sasl-2.4.2, snmp-5.1.2, ssh-4.0,
stdlib-3.4, syntax_tools-1.7, tools-2.8, xmerl-1.3.8
---------------------------------------------------------------------
--- compiler-7.1.5 --------------------------------------------------
---------------------------------------------------------------------
The compiler-7.1.5 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14863 Application(s): compiler
The internal compiler pass (beam_validator) that
validates the generated code has been strengthened.
When compiling from BEAM assembly code, the beam_type
optimizer pass could make the code unsafe. Corrected.
OTP-14898 Application(s): compiler
Corrected optimizations of integers matched out from
binaries and used in bit operations.
Full runtime dependencies of compiler-7.1.5: crypto-3.6, erts-9.0,
hipe-3.12, kernel-4.0, stdlib-2.5
---------------------------------------------------------------------
--- crypto-4.2.1 ----------------------------------------------------
---------------------------------------------------------------------
The crypto-4.2.1 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14873 Application(s): crypto
Fix build error caused by removed RSA padding functions
in LibreSSL >= 2.6.1
Full runtime dependencies of crypto-4.2.1: erts-9.0, kernel-5.3,
stdlib-3.4
---------------------------------------------------------------------
--- dialyzer-3.2.4 --------------------------------------------------
---------------------------------------------------------------------
Note! The dialyzer-3.2.4 application can *not* be applied
independently of other applications on an arbitrary OTP 20
installation.
On a full OTP 20 installation, also the following runtime
dependency has to be satisfied:
-- hipe-3.16.1 (first satisfied in OTP 20.1)
--- Fixed Bugs and Malfunctions ---
OTP-14858 Application(s): dialyzer
Related Id(s): ERL-551
Fix bugs concerning erlang:abs/1 and erlang:bsl/2.
OTP-14911 Application(s): dialyzer
Fix a bug that caused Dialyzer to crash instead of
emitting a warning.
OTP-14925 Application(s): dialyzer
Related Id(s): ERL-565
Fix a bug concerning parameterized opaque types.
Full runtime dependencies of dialyzer-3.2.4: compiler-7.0, erts-9.0,
hipe-3.16.1, kernel-5.3, stdlib-3.4, syntax_tools-2.0, wx-1.2
---------------------------------------------------------------------
--- diameter-2.1.4 --------------------------------------------------
---------------------------------------------------------------------
The diameter-2.1.4 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14839 Application(s): diameter
Fix close of diameter_tcp/sctp listening socket at
diameter:remove_transport/2, that was broken in
diameter 2.1. A reconfigured transport could not listen
on the same endpoint as a result.
OTP-14947 Application(s): diameter
Related Id(s): ERIERL-124
Fix handling of SUSPECT connections at service
termination. A connection with this watchdog state
caused diameter_service:terminate/2 to fail.
Full runtime dependencies of diameter-2.1.4: erts-6.4, kernel-3.2,
ssl-6.0, stdlib-2.4
---------------------------------------------------------------------
--- erts-9.3 --------------------------------------------------------
---------------------------------------------------------------------
The erts-9.3 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14840 Application(s): erts, otp
Related Id(s): ERL-529
Fixed a configure test for libz internals that
unintentionally caused various native code in OTP to
link against libz. Under certain circumstances this
caused the build of OTP to fail.
OTP-14847 Application(s): erts
Related Id(s): ERL-544
File names containing unicode codepoints larger than
255 were not correctly encoded in stack traces.
OTP-14850 Application(s): erts, hipe
Related Id(s): PR-1664
*** POTENTIAL INCOMPATIBILITY ***
Fix HiPE bug for binary constructs like <<X/utf8>>
which could in rare cases cause faulty results or VM
crash.
This fix affects both the hipe compiler and erts
runtime in an *incompatible* way. Old hipe compiled
files need to be recompiled to load and run properly as
native.
OTP-14876 Application(s): erts
Related Id(s): ERL-548
Fix term_to_binary/2 spec for minor_version.
OTP-14879 Application(s): erts
Fix bug in erlang:binary_to_integer/2 where invalid
characters were not detected for bases larger then 10.
e.g. binary_to_integer(<<":">>, 16) would return 3 and
not badarg as it should.
OTP-14890 Application(s): erts
Fixed bug in float_to_list/2 and float_to_binary/2 with
option decimals that caused a faulty rounding up of the
last decimal digit for about 6% of floats with a
fraction part.
For example, float_to_list(0.145, [{decimals,1}])
returned "0.2" instead of "0.1".
OTP-14891 Application(s): erts
Fix bug causing slow hipe execution in modules loaded
early during boot or loaded by code:atomic_load or
code:finish_loading.
OTP-14920 Application(s): erts
Fixed a buffer overflow in an internal string
formatting function that could be hit if specifying a
long floating-point format specifier to erts_sprintf or
similar.
OTP-14921 Application(s): erts
erlang:iolist_to_iovec/1 and enif_inspect_iovec will no
longer fail when provided with binaries that have been
matched-out on a non-byte boundary.
OTP-14926 Application(s): erts
iolist_to_binary/1 and erlang:iolist_to_iovec/1 will
now badarg if supplied with a bitstring (without a
list).
OTP-14933 Application(s): erts, kernel
Related Id(s): ERL-564, PR-1716
Reject loading modules with names containing directory
separators ('/' or '\' on Windows).
OTP-14938 Application(s): erts
Fix potential dead-lock when the tracer process dies
while a the traced process is running on a dirty
scheduler.
--- Improvements and New Features ---
OTP-14820 Application(s): erts, observer
More crash dump info such as: process binary virtual
heap stats, full info for process causing out-of-mem
during GC, more port related info, and dirty scheduler
info.
Full runtime dependencies of erts-9.3: kernel-5.0, sasl-3.0.1,
stdlib-3.0
---------------------------------------------------------------------
--- hipe-3.17.1 -----------------------------------------------------
---------------------------------------------------------------------
Note! The hipe-3.17.1 application can *not* be applied independently
of other applications on an arbitrary OTP 20 installation.
On a full OTP 20 installation, also the following runtime
dependency has to be satisfied:
-- erts-9.3 (first satisfied in OTP 20.3)
--- Fixed Bugs and Malfunctions ---
OTP-14850 Application(s): erts, hipe
Related Id(s): PR-1664
*** POTENTIAL INCOMPATIBILITY ***
Fix HiPE bug for binary constructs like <<X/utf8>>
which could in rare cases cause faulty results or VM
crash.
This fix affects both the hipe compiler and erts
runtime in an *incompatible* way. Old hipe compiled
files need to be recompiled to load and run properly as
native.
OTP-14886 Application(s): hipe
The BEAM compiler chooses not to perform tailcall
optimisations for some calls in tail position, for
example to some built-in functions. However, when the
ErLLVM HiPE backend is used, LLVM may choose to perform
tailcall optimisation on these calls, breaking the
expected semantics.
To preserve the precise semantics exhibited by BEAM,
the 'notail' marker, present in LLVM since version 3.8,
is added to call instructions that BEAM has not turned
into tail calls, which inhibits LLVM from performing
tail-call optimisation in turn.
Full runtime dependencies of hipe-3.17.1: compiler-5.0, erts-9.3,
kernel-5.3, stdlib-3.4, syntax_tools-1.6.14
---------------------------------------------------------------------
--- inets-6.5 -------------------------------------------------------
---------------------------------------------------------------------
The inets-6.5 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14908 Application(s): inets
httpc_manager crashes when a long running request is
sent on a persistent HTTP connection (keep-alive).
Fixed httpc_manager to use proper timeouts on
keep-alive connections.
--- Improvements and New Features ---
OTP-14854 Application(s): inets
Add support for unix domain sockets in the http client.
Full runtime dependencies of inets-6.5: erts-6.0, kernel-3.0,
mnesia-4.12, runtime_tools-1.8.14, ssl-5.3.4, stdlib-2.0
---------------------------------------------------------------------
--- kernel-5.4.3 ----------------------------------------------------
---------------------------------------------------------------------
Note! The kernel-5.4.3 application can *not* be applied independently
of other applications on an arbitrary OTP 20 installation.
On a full OTP 20 installation, also the following runtime
dependency has to be satisfied:
-- erts-9.3 (first satisfied in OTP 20.3)
--- Fixed Bugs and Malfunctions ---
OTP-14889 Application(s): kernel, stdlib
Correct a few contracts.
OTP-14933 Application(s): erts, kernel
Related Id(s): ERL-564, PR-1716
Reject loading modules with names containing directory
separators ('/' or '\' on Windows).
OTP-14940 Application(s): kernel
Fix bug in handling of os:cmd/2 option max_size on
windows.
Full runtime dependencies of kernel-5.4.3: erts-9.3, sasl-3.0,
stdlib-3.4
---------------------------------------------------------------------
--- observer-2.7 ----------------------------------------------------
---------------------------------------------------------------------
The observer-2.7 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14842 Application(s): observer
Related Id(s): ERL-534
etop.hrl used a relative path to include
observer_backend.hrl, this is now changed to use
include_lib instead. runtime_tools/include is added to
the tertiary bootstrap.
OTP-14846 Application(s): observer
Related Id(s): ERL-537
If a crashdump was truncated in the attributes section
for a module, crashdump_viewer would crash when a
module view was opened from the GUI. This bug was
introduced in OTP-20.2 and is now corrected.
OTP-14856 Application(s): observer
Related Id(s): ERIERL-117
Optimized ets and mnesia table view tab in observer
gui, listing 10000 tables was previously very slow.
--- Improvements and New Features ---
OTP-14725 Application(s): observer
When a process has many links and/or monitors, it could
earlier take very long time to display the process
information window. This is now improved by only
showing a few links and monitors, and then an link
named "more..." to expand the rest.
OTP-14820 Application(s): erts, observer
More crash dump info such as: process binary virtual
heap stats, full info for process causing out-of-mem
during GC, more port related info, and dirty scheduler
info.
Full runtime dependencies of observer-2.7: erts-7.0, et-1.5,
inets-5.10, kernel-3.0, runtime_tools-1.8.14, stdlib-3.4, wx-1.2
---------------------------------------------------------------------
--- runtime_tools-1.12.5 --------------------------------------------
---------------------------------------------------------------------
The runtime_tools-1.12.5 application can be applied independently of
other applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14816 Application(s): runtime_tools
system_information:to_file/1 will now use slightly less
memory.
Full runtime dependencies of runtime_tools-1.12.5: erts-8.0,
kernel-5.0, mnesia-4.12, stdlib-3.0
---------------------------------------------------------------------
--- snmp-5.2.10 -----------------------------------------------------
---------------------------------------------------------------------
The snmp-5.2.10 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14204 Application(s): snmp
Related Id(s): PR-1726
The example MIB EX1-MIB in the SNMP application has
been corrected to match its example.
Full runtime dependencies of snmp-5.2.10: crypto-3.3, erts-6.0,
kernel-3.0, mnesia-4.12, runtime_tools-1.8.14, stdlib-2.5
---------------------------------------------------------------------
--- ssh-4.6.6 -------------------------------------------------------
---------------------------------------------------------------------
Note! The ssh-4.6.6 application can *not* be applied independently of
other applications on an arbitrary OTP 20 installation.
On a full OTP 20 installation, also the following runtime
dependencies have to be satisfied:
-- crypto-4.2 (first satisfied in OTP 20.2)
-- public_key-1.5.2 (first satisfied in OTP 20.2)
--- Fixed Bugs and Malfunctions ---
OTP-14939 Application(s): ssh
Remove a blocking risk when a channel is closed and an
operation is tried on that channel after at least a
second's time gap.
--- Improvements and New Features ---
OTP-14194 Application(s): ssh
Related Id(s): OTP-12487
Added ssh_compat_SUITE.
This suite contains a number of interoperability tests
mainly with OpenSSH. The tests start docker containers
with different OpenSSH and OpenSSL/LibreSSLcryptolib
versions and performs a number of tests of supported
algorithms.
All login methods and all user's public key types are
tested both for the client and the server.
All algorithms for kex, cipher, host key, mac and
compressions are tested with a number of exec and sftp
tests, both for the client and the server.
OTP-14881 Application(s): ssh
Default exec is disabled when a user-defined shell is
enabled.
Full runtime dependencies of ssh-4.6.6: crypto-4.2, erts-6.0,
kernel-3.0, public_key-1.5.2, stdlib-3.3
---------------------------------------------------------------------
--- ssl-8.2.4 -------------------------------------------------------
---------------------------------------------------------------------
Note! The ssl-8.2.4 application can *not* be applied independently of
other applications on an arbitrary OTP 20 installation.
On a full OTP 20 installation, also the following runtime
dependencies have to be satisfied:
-- crypto-4.2 (first satisfied in OTP 20.2)
-- public_key-1.5 (first satisfied in OTP 20.1)
--- Fixed Bugs and Malfunctions ---
OTP-14843 Application(s): ssl
Optimization of bad merge conflict resolution causing
dubble decode
OTP-14852 Application(s): ssl
Restore error propagation to OTP-19.3 behaviour, in
OTP-20.2 implementation adjustments to gen_statem
needed some further adjustments to avoid a race
condition. This could cause a TLS server to not always
report file path errors correctly.
OTP-14871 Application(s): ssl
Corrected RC4 suites listing function to regard TLS
version
OTP-14919 Application(s): ssl
Fix alert handling so that unexpected messages are
logged and alerted correctly
OTP-14929 Application(s): ssl
Fix alert handling so that unexpected messages are
logged and alerted correctly
OTP-14952 Application(s): ssl
Correct handling of anonymous cipher suites
--- Improvements and New Features ---
OTP-14760 Application(s): ssl
*** HIGHLIGHT ***
Added new API functions to facilitate cipher suite
handling
OTP-14828 Application(s): ssl
Correct TLS_FALLBACK_SCSV handling so that this special
flag suite is always placed last in the cipher suite
list in accordance with the specs. Also make sure this
functionality is used in DTLS.
OTP-14892 Application(s): ssl
Add TLS record version sanity check for early as
possible error detection and consistency in ALERT codes
generated
Full runtime dependencies of ssl-8.2.4: crypto-4.2, erts-7.0,
inets-5.10.7, kernel-3.0, public_key-1.5, stdlib-3.2
---------------------------------------------------------------------
--- stdlib-3.4.4 ----------------------------------------------------
---------------------------------------------------------------------
The stdlib-3.4.4 application can be applied independently of other
applications on a full OTP 20 installation.
--- Fixed Bugs and Malfunctions ---
OTP-14832 Application(s): stdlib
Related Id(s): ERL-527
Correct filelib:find_source() and filelib:find_file()
to by default also search one level below src. This is
in accordance with the Design Principles which states
that an application can have Erlang source files one
level below the src directory.
OTP-14860 Application(s): stdlib
Related Id(s): 1670, PR
The contract of erl_tar:table/2 is corrected.
OTP-14889 Application(s): kernel, stdlib
Correct a few contracts.
OTP-14942 Application(s): stdlib
Related Id(s): PR-1702
Fix string:prefix/2 to handle an empty string as second
argument.
Full runtime dependencies of stdlib-3.4.4: compiler-5.0, crypto-3.3,
erts-9.0, kernel-5.0, sasl-3.0
---------------------------------------------------------------------
--- tools-2.11.2 ----------------------------------------------------
---------------------------------------------------------------------
Note! The tools-2.11.2 application can *not* be applied independently
of other applications on an arbitrary OTP 20 installation.
On a full OTP 20 installation, also the following runtime
dependencies have to be satisfied:
-- erts-9.1 (first satisfied in OTP 20.1)
-- kernel-5.4 (first satisfied in OTP 20.1)
--- Fixed Bugs and Malfunctions ---
OTP-14817 Application(s): tools
Related Id(s): 1641, PR
A counting bug is corrected in Cover. The bug was
introduced in Erlang/OTP 18.0.
OTP-14912 Application(s): tools
The lcnt server will no longer crash if
lcnt:information/0 is called before lcnt:collect/0.
OTP-14913 Application(s): tools
lcnt:collect will now implicitly start the lcnt server,
as per the documentation.
--- Improvements and New Features ---
OTP-14944 Application(s): tools
Improved indentation in emacs and various other
updates.
Full runtime dependencies of tools-2.11.2: compiler-5.0, erts-9.1,
kernel-5.4, runtime_tools-1.8.14, stdlib-3.4
---------------------------------------------------------------------
---------------------------------------------------------------------
---------------------------------------------------------------------
|
