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44691e6f AB |
1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
9064626f SH |
5 | [ this is a template for a new perldelta file. Any text flagged as XXX needs |
6 | to be processed before release. ] | |
7 | ||
8 | perldelta - what is new for perl v5.31.3 | |
d407e309 | 9 | |
862f380b | 10 | =head1 DESCRIPTION |
261e14b0 | 11 | |
9064626f | 12 | This document describes differences between the 5.31.2 release and the 5.31.3 |
862f380b | 13 | release. |
261e14b0 | 14 | |
9064626f SH |
15 | If you are upgrading from an earlier release such as 5.31.1, first read |
16 | L<perl5312delta>, which describes differences between 5.31.1 and 5.31.2. | |
8424e368 | 17 | |
9064626f | 18 | =head1 Notice |
a0348300 | 19 | |
9064626f SH |
20 | XXX Any important notices here |
21 | ||
22 | =head1 Core Enhancements | |
23 | ||
24 | XXX New core language features go here. Summarize user-visible core language | |
25 | enhancements. Particularly prominent performance optimisations could go | |
26 | here, but most should go in the L</Performance Enhancements> section. | |
27 | ||
28 | [ List each enhancement as a =head2 entry ] | |
29 | ||
30 | =head1 Security | |
31 | ||
32 | XXX Any security-related notices go here. In particular, any security | |
33 | vulnerabilities closed should be noted here rather than in the | |
34 | L</Selected Bug Fixes> section. | |
35 | ||
36 | [ List each security issue as a =head2 entry ] | |
37 | ||
38 | =head1 Incompatible Changes | |
39 | ||
40 | XXX For a release on a stable branch, this section aspires to be: | |
41 | ||
42 | There are no changes intentionally incompatible with 5.XXX.XXX | |
43 | If any exist, they are bugs, and we request that you submit a | |
44 | report. See L</Reporting Bugs> below. | |
45 | ||
46 | [ List each incompatible change as a =head2 entry ] | |
47 | ||
e6132dc0 TC |
48 | =head2 Plain "0" string now treated as a number for range operator |
49 | ||
50 | Previously a range C< "0" .. "-1" > would produce a range of numeric | |
51 | strings from "0" through "99", this now produces an empty list, just | |
52 | as C< 0 .. -1 > does. | |
53 | ||
54 | This was due to a special case that treated strings starting with "0" | |
55 | as strings so ranges like C< "00" .. "03" > produced C< "00", "01", | |
56 | "02", "03" >, but didn't specially handle the string C<"0">. | |
57 | ||
58 | [perl #133695] | |
59 | ||
befef368 TC |
60 | =head2 C<\K> now disallowed in look-ahead and look-behind assertions |
61 | ||
62 | This was disallowed because it causes unexpected behaviour, and no-one | |
63 | could define what the desired behaviour was. | |
64 | ||
65 | [perl #124256] | |
66 | ||
9064626f SH |
67 | =head1 Deprecations |
68 | ||
69 | XXX Any deprecated features, syntax, modules etc. should be listed here. | |
70 | ||
71 | =head2 Module removals | |
72 | ||
73 | XXX Remove this section if not applicable. | |
74 | ||
75 | The following modules will be removed from the core distribution in a | |
76 | future release, and will at that time need to be installed from CPAN. | |
77 | Distributions on CPAN which require these modules will need to list them as | |
78 | prerequisites. | |
79 | ||
80 | The core versions of these modules will now issue C<"deprecated">-category | |
81 | warnings to alert you to this fact. To silence these deprecation warnings, | |
82 | install the modules in question from CPAN. | |
83 | ||
84 | Note that these are (with rare exceptions) fine modules that you are encouraged | |
85 | to continue to use. Their disinclusion from core primarily hinges on their | |
86 | necessity to bootstrapping a fully functional, CPAN-capable Perl installation, | |
87 | not usually on concerns over their design. | |
88 | ||
89 | =over | |
90 | ||
91 | =item XXX | |
92 | ||
93 | XXX Note that deprecated modules should be listed here even if they are listed | |
94 | as an updated module in the L</Modules and Pragmata> section. | |
95 | ||
96 | =back | |
97 | ||
98 | [ List each other deprecation as a =head2 entry ] | |
99 | ||
100 | =head1 Performance Enhancements | |
101 | ||
102 | XXX Changes which enhance performance without changing behaviour go here. | |
103 | There may well be none in a stable release. | |
104 | ||
105 | [ List each enhancement as an =item entry ] | |
a0348300 | 106 | |
9c600b76 | 107 | =over 4 |
a0348300 | 108 | |
9c600b76 | 109 | =item * |
a0348300 | 110 | |
9064626f | 111 | XXX |
a0348300 | 112 | |
9064626f | 113 | =back |
9c600b76 | 114 | |
9064626f | 115 | =head1 Modules and Pragmata |
a0348300 | 116 | |
9064626f SH |
117 | XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> |
118 | go here. If Module::CoreList is updated, generate an initial draft of the | |
119 | following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary | |
120 | for important changes should then be added by hand. In an ideal world, | |
121 | dual-life modules would have a F<Changes> file that could be cribbed. | |
a0348300 | 122 | |
9064626f SH |
123 | The list of new and updated modules is modified automatically as part of |
124 | preparing a Perl release, so the only reason to manually add entries here is if | |
125 | you're summarising the important changes in the module update. (Also, if the | |
126 | manually-added details don't match the automatically-generated ones, the | |
127 | release manager will have to investigate the situation carefully.) | |
a0348300 | 128 | |
9064626f SH |
129 | [ Within each section, list entries as an =item entry ] |
130 | ||
131 | =head2 New Modules and Pragmata | |
a0348300 | 132 | |
9064626f | 133 | =over 4 |
dad02c36 | 134 | |
9c600b76 SH |
135 | =item * |
136 | ||
9064626f | 137 | XXX Remove this section if not applicable. |
a0348300 | 138 | |
9064626f | 139 | =back |
a0348300 | 140 | |
9064626f SH |
141 | =head2 Updated Modules and Pragmata |
142 | ||
143 | =over 4 | |
a0348300 | 144 | |
9c600b76 | 145 | =item * |
a0348300 | 146 | |
03b7d279 TC |
147 | L<Devel::PPPort> has been upgraded from version 3.54 to 3.55. |
148 | ||
149 | The test files generated on Win32 are now identical to when they are | |
150 | generated on POSIX-like systems. | |
151 | ||
152 | =item * | |
153 | ||
154 | L<File::Find> has been upgraded from version 1.36 to 1.37. | |
155 | ||
156 | On Win32, the tests no longer require either a file in the drive root | |
157 | directory, or a writable root directory. | |
158 | ||
159 | =item * | |
160 | ||
36bb8f68 JK |
161 | L<Thread> has been upgraded from version 3.04 to 3.05. |
162 | ||
163 | =item * | |
164 | ||
8639f158 JK |
165 | L<Getopt::Long> has been upgraded from version 2.50 to 2.51. |
166 | ||
167 | =item * | |
168 | ||
029f24d3 | 169 | L<Time::HiRes> has been upgraded from version 1.9761 to 1.9762. |
f0f66070 TC |
170 | |
171 | Removed obsolete code such as support for pre-5.6 perl and classic | |
172 | MacOS. [perl #134288] | |
173 | ||
174 | =item * | |
175 | ||
a4635286 KW |
176 | L<I18N::LangTags> has been upgraded from version 1.07 to 1.08. |
177 | ||
178 | Document the C<IGNORE_WIN32_LOCALE> environment variable. | |
179 | ||
180 | =item * | |
181 | ||
589e04a1 JK |
182 | L<Test::Simple> has been upgraded from version 1.302164 to 1.302166. |
183 | ||
184 | =item * | |
185 | ||
9064626f SH |
186 | L<XXX> has been upgraded from version A.xx to B.yy. |
187 | ||
188 | If there was something important to note about this change, include that here. | |
189 | ||
190 | =back | |
191 | ||
192 | =head2 Removed Modules and Pragmata | |
193 | ||
194 | =over 4 | |
dad02c36 | 195 | |
9c600b76 | 196 | =item * |
dad02c36 | 197 | |
9064626f SH |
198 | XXX |
199 | ||
200 | =back | |
201 | ||
202 | =head1 Documentation | |
203 | ||
204 | XXX Changes to files in F<pod/> go here. Consider grouping entries by | |
205 | file and be sure to link to the appropriate page, e.g. L<perlfunc>. | |
206 | ||
207 | =head2 New Documentation | |
208 | ||
209 | XXX Changes which create B<new> files in F<pod/> go here. | |
210 | ||
211 | =head3 L<XXX> | |
212 | ||
213 | XXX Description of the purpose of the new file here | |
214 | ||
215 | =head2 Changes to Existing Documentation | |
216 | ||
217 | We have attempted to update the documentation to reflect the changes | |
218 | listed in this document. If you find any we have missed, send email | |
219 | to L<perlbug@perl.org|mailto:perlbug@perl.org>. | |
220 | ||
221 | XXX Changes which significantly change existing files in F<pod/> go here. | |
222 | However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> | |
223 | section. | |
224 | ||
225 | Additionally, the following selected changes have been made: | |
226 | ||
227 | =head3 L<XXX> | |
228 | ||
229 | =over 4 | |
cc1cbb06 TC |
230 | |
231 | =item * | |
232 | ||
9064626f | 233 | XXX Description of the change here |
8424e368 | 234 | |
dad02c36 | 235 | =back |
a0348300 | 236 | |
dad02c36 | 237 | =head1 Diagnostics |
a0348300 | 238 | |
9064626f SH |
239 | The following additions or changes have been made to diagnostic output, |
240 | including warnings and fatal error messages. For the complete list of | |
241 | diagnostic messages, see L<perldiag>. | |
242 | ||
243 | XXX New or changed warnings emitted by the core's C<C> code go here. Also | |
244 | include any changes in L<perldiag> that reconcile it to the C<C> code. | |
245 | ||
dad02c36 | 246 | =head2 New Diagnostics |
8424e368 | 247 | |
9064626f SH |
248 | XXX Newly added diagnostic messages go under here, separated into New Errors |
249 | and New Warnings | |
250 | ||
dad02c36 | 251 | =head3 New Errors |
8424e368 S |
252 | |
253 | =over 4 | |
254 | ||
255 | =item * | |
256 | ||
9064626f | 257 | XXX L<message|perldiag/"message"> |
8424e368 | 258 | |
9064626f SH |
259 | =back |
260 | ||
261 | =head3 New Warnings | |
262 | ||
263 | =over 4 | |
264 | ||
265 | =item * | |
266 | ||
267 | XXX L<message|perldiag/"message"> | |
8424e368 | 268 | |
dad02c36 KE |
269 | =back |
270 | ||
271 | =head2 Changes to Existing Diagnostics | |
272 | ||
9064626f SH |
273 | XXX Changes (i.e. rewording) of diagnostic messages go here |
274 | ||
860a458f KE |
275 | =over 4 |
276 | ||
277 | =item * | |
278 | ||
9064626f SH |
279 | XXX Describe change here |
280 | ||
281 | =back | |
282 | ||
283 | =head1 Utility Changes | |
284 | ||
285 | XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. | |
286 | Most of these are built within the directory F<utils>. | |
287 | ||
288 | [ List utility changes as a =head2 entry for each utility and =item | |
289 | entries for each change | |
290 | Use L<XXX> with program names to get proper documentation linking. ] | |
291 | ||
292 | =head2 L<XXX> | |
293 | ||
294 | =over 4 | |
295 | ||
296 | =item * | |
1a7108fe | 297 | |
9064626f | 298 | XXX |
860a458f KE |
299 | |
300 | =back | |
301 | ||
8424e368 S |
302 | =head1 Configuration and Compilation |
303 | ||
9064626f SH |
304 | XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools |
305 | go here. Any other changes to the Perl build process should be listed here. | |
306 | However, any platform-specific changes should be listed in the | |
307 | L</Platform Support> section, instead. | |
308 | ||
309 | [ List changes as an =item entry ]. | |
310 | ||
8424e368 S |
311 | =over 4 |
312 | ||
313 | =item * | |
314 | ||
9064626f SH |
315 | XXX |
316 | ||
317 | =back | |
318 | ||
319 | =head1 Testing | |
320 | ||
321 | XXX Any significant changes to the testing of a freshly built perl should be | |
322 | listed here. Changes which create B<new> files in F<t/> go here as do any | |
323 | large changes to the testing harness (e.g. when parallel testing was added). | |
324 | Changes to existing files in F<t/> aren't worth summarizing, although the bugs | |
325 | that they represent may be covered elsewhere. | |
326 | ||
327 | XXX If there were no significant test changes, say this: | |
328 | ||
329 | Tests were added and changed to reflect the other additions and changes | |
330 | in this release. | |
331 | ||
332 | XXX If instead there were significant changes, say this: | |
333 | ||
334 | Tests were added and changed to reflect the other additions and | |
335 | changes in this release. Furthermore, these significant changes were | |
336 | made: | |
337 | ||
338 | [ List each test improvement as an =item entry ] | |
339 | ||
340 | =over 4 | |
8424e368 | 341 | |
86b50d93 DIM |
342 | =item * |
343 | ||
9064626f | 344 | XXX |
86b50d93 | 345 | |
8424e368 S |
346 | =back |
347 | ||
dad02c36 | 348 | =head1 Platform Support |
8424e368 | 349 | |
9064626f | 350 | XXX Any changes to platform support should be listed in the sections below. |
fef47ada | 351 | |
9064626f SH |
352 | [ Within the sections, list each platform as an =item entry with specific |
353 | changes as paragraphs below it. ] | |
4ec3954c | 354 | |
9064626f | 355 | =head2 New Platforms |
ec121dac | 356 | |
9064626f SH |
357 | XXX List any platforms that this version of perl compiles on, that previous |
358 | versions did not. These will either be enabled by new files in the F<hints/> | |
359 | directories, or new subdirectories and F<README> files at the top level of the | |
360 | source tree. | |
ec121dac | 361 | |
9064626f | 362 | =over 4 |
4ec3954c | 363 | |
9064626f SH |
364 | =item XXX-some-platform |
365 | ||
366 | XXX | |
4ec3954c | 367 | |
dad02c36 | 368 | =back |
4ec3954c | 369 | |
9064626f | 370 | =head2 Discontinued Platforms |
4ec3954c | 371 | |
9064626f | 372 | XXX List any platforms that this version of perl no longer compiles on. |
4ec3954c | 373 | |
9064626f | 374 | =over 4 |
4ec3954c | 375 | |
9064626f | 376 | =item XXX-some-platform |
4ec3954c | 377 | |
9064626f | 378 | XXX |
b870557c | 379 | |
9064626f | 380 | =back |
b870557c | 381 | |
9064626f | 382 | =head2 Platform-Specific Notes |
ed0cf058 | 383 | |
9064626f SH |
384 | XXX List any changes for specific platforms. This could include configuration |
385 | and compilation changes or changes in portability/compatibility. However, | |
386 | changes within modules for platforms should generally be listed in the | |
387 | L</Modules and Pragmata> section. | |
ed0cf058 | 388 | |
9064626f | 389 | =over 4 |
f7faf2ad | 390 | |
efb1f9ac | 391 | =item Windows |
f7faf2ad | 392 | |
efb1f9ac TC |
393 | F<t/op/magic.t> could fail if environment varables starting with |
394 | C<FOO> already existed. | |
f7faf2ad | 395 | |
4ec3954c TC |
396 | =back |
397 | ||
9064626f | 398 | =head1 Internal Changes |
4ec3954c | 399 | |
9064626f SH |
400 | XXX Changes which affect the interface available to C<XS> code go here. Other |
401 | significant internal changes for future core maintainers should be noted as | |
402 | well. | |
2dd5ef16 | 403 | |
9064626f | 404 | [ List each change as an =item entry ] |
5b2f1ba6 | 405 | |
9064626f | 406 | =over 4 |
5b2f1ba6 | 407 | |
b870557c TC |
408 | =item * |
409 | ||
996b0cb8 PE |
410 | A new parser function L<parse_subsignature()|perlapi/parse_subsignature> |
411 | allows a keyword plugin to parse a subroutine signature while C<use feature | |
412 | 'signatures'> is in effect. This allows custom keywords to implement | |
413 | semantics similar to regular C<sub> declarations that include signatures. | |
414 | [perl #132474] | |
b870557c | 415 | |
061637ca HS |
416 | =item * |
417 | ||
418 | Since on some platforms we need to hold a mutex when temporarily | |
419 | switching locales, new macros (C<STORE_LC_NUMERIC_SET_TO_NEEDED_IN>, | |
420 | C<WITH_LC_NUMERIC_SET_TO_NEEDED> and C<WITH_LC_NUMERIC_SET_TO_NEEDED_IN>) | |
421 | have been added to make it easier to do this safely and efficiently | |
422 | as part of [perl #134172]. | |
423 | ||
9064626f | 424 | =back |
ed0cf058 | 425 | |
9064626f | 426 | =head1 Selected Bug Fixes |
ed0cf058 | 427 | |
9064626f SH |
428 | XXX Important bug fixes in the core language are summarized here. Bug fixes in |
429 | files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. | |
973ae088 | 430 | |
9064626f SH |
431 | [ List each fix as an =item entry ] |
432 | ||
433 | =over 4 | |
973ae088 | 434 | |
f7faf2ad SH |
435 | =item * |
436 | ||
052ce2b8 TC |
437 | C<< $@ = 100; die; >> now correctly propagates the 100 as an exception |
438 | instead of ignoring it. [perl #134291] | |
f7faf2ad | 439 | |
a3c77565 TC |
440 | =item * |
441 | ||
442 | C<< 0 0x@ >> no longer asserts in S_no_op(). [perl #134310] | |
443 | ||
6e23836a TC |
444 | =item * |
445 | ||
446 | Exceptions thrown while C<$@> is read-only could result in infinite | |
447 | recursion as perl tried to update C<$@>, which throws another | |
448 | exception, resulting in a stack overflow. Perl now replaces C<$@> | |
449 | with a copy if it's not a simple writable SV. [perl #134266] | |
450 | ||
dad02c36 | 451 | =back |
5b2f1ba6 | 452 | |
dad02c36 | 453 | =head1 Known Problems |
5b2f1ba6 | 454 | |
9064626f SH |
455 | XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any |
456 | tests that had to be C<TODO>ed for the release would be noted here. Unfixed | |
457 | platform specific bugs also go here. | |
84ab3b69 | 458 | |
9064626f | 459 | [ List each fix as an =item entry ] |
fa068f6d | 460 | |
9064626f | 461 | =over 4 |
cb561db1 SH |
462 | |
463 | =item * | |
464 | ||
9064626f | 465 | XXX |
fa068f6d | 466 | |
8424e368 S |
467 | =back |
468 | ||
9064626f SH |
469 | =head1 Errata From Previous Releases |
470 | ||
471 | =over 4 | |
a0348300 | 472 | |
9064626f SH |
473 | =item * |
474 | ||
475 | XXX Add anything here that we forgot to add, or were mistaken about, in | |
476 | the perldelta of a previous release. | |
8424e368 | 477 | |
9064626f | 478 | =back |
a01eaaa1 | 479 | |
9064626f | 480 | =head1 Obituary |
a01eaaa1 | 481 | |
9064626f SH |
482 | XXX If any significant core contributor or member of the CPAN community has |
483 | died, add a short obituary here. | |
a01eaaa1 | 484 | |
9064626f | 485 | =head1 Acknowledgements |
a01eaaa1 | 486 | |
9064626f | 487 | XXX Generate this with: |
a01eaaa1 | 488 | |
9064626f | 489 | perl Porting/acknowledgements.pl v5.31.2..HEAD |
8424e368 | 490 | |
44691e6f AB |
491 | =head1 Reporting Bugs |
492 | ||
9064626f SH |
493 | If you find what you think is a bug, you might check the perl bug database |
494 | at L<https://rt.perl.org/>. There may also be information at | |
15f62f05 | 495 | L<http://www.perl.org/>, the Perl Home Page. |
44691e6f | 496 | |
e08634c5 SH |
497 | If you believe you have an unreported bug, please run the L<perlbug> program |
498 | included with your release. Be sure to trim your bug down to a tiny but | |
499 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
0e18d1c4 | 500 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. |
44691e6f | 501 | |
87c118b9 DM |
502 | If the bug you are reporting has security implications which make it |
503 | inappropriate to send to a publicly archived mailing list, then see | |
9064626f SH |
504 | L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION> |
505 | for details of how to report the issue. | |
44691e6f | 506 | |
390ae6f9 S |
507 | =head1 Give Thanks |
508 | ||
9064626f SH |
509 | If you wish to thank the Perl 5 Porters for the work we had done in Perl 5, |
510 | you can do so by running the C<perlthanks> program: | |
390ae6f9 S |
511 | |
512 | perlthanks | |
513 | ||
514 | This will send an email to the Perl 5 Porters list with your show of thanks. | |
515 | ||
44691e6f AB |
516 | =head1 SEE ALSO |
517 | ||
e08634c5 SH |
518 | The F<Changes> file for an explanation of how to view exhaustive details on |
519 | what changed. | |
44691e6f AB |
520 | |
521 | The F<INSTALL> file for how to build Perl. | |
522 | ||
523 | The F<README> file for general stuff. | |
524 | ||
525 | The F<Artistic> and F<Copying> files for copyright information. | |
526 | ||
527 | =cut |