Commit | Line | Data |
---|---|---|
44691e6f AB |
1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
fc4c3cec RS |
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 v5.23.1 | |
eabfc7bc | 9 | |
2cfe9b50 | 10 | =head1 DESCRIPTION |
eabfc7bc | 11 | |
fc4c3cec | 12 | This document describes differences between the 5.23.0 release and the 5.23.1 |
2cfe9b50 | 13 | release. |
eabfc7bc | 14 | |
fc4c3cec RS |
15 | If you are upgrading from an earlier release such as 5.22.0, first read |
16 | L<perl5230delta>, which describes differences between 5.22.0 and 5.23.0. | |
17 | ||
18 | =head1 Notice | |
19 | ||
20 | XXX Any important notices here | |
21 | ||
2cfe9b50 | 22 | =head1 Core Enhancements |
eabfc7bc | 23 | |
fc4c3cec RS |
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. | |
ac71d2a0 | 27 | |
fc4c3cec | 28 | [ List each enhancement as a =head2 entry ] |
ac71d2a0 | 29 | |
7d380357 RS |
30 | =head2 Postfix dereferencing is no longer experimental |
31 | ||
32 | Using the C<postderef> and C<postderef_qq> features no longer emits a warning. | |
33 | Existing code that disables that warning category will continue to work. The | |
34 | C<5.24> feature bundle now includes those features. | |
35 | ||
fc4c3cec | 36 | =head1 Security |
2ad792cd | 37 | |
fc4c3cec RS |
38 | XXX Any security-related notices go here. In particular, any security |
39 | vulnerabilities closed should be noted here rather than in the | |
40 | L</Selected Bug Fixes> section. | |
41 | ||
42 | [ List each security issue as a =head2 entry ] | |
2ad792cd | 43 | |
2cfe9b50 | 44 | =head1 Incompatible Changes |
eabfc7bc | 45 | |
fc4c3cec | 46 | XXX For a release on a stable branch, this section aspires to be: |
33c28ab2 | 47 | |
fc4c3cec RS |
48 | There are no changes intentionally incompatible with 5.XXX.XXX |
49 | If any exist, they are bugs, and we request that you submit a | |
50 | report. See L</Reporting Bugs> below. | |
eabfc7bc | 51 | |
fc4c3cec | 52 | [ List each incompatible change as a =head2 entry ] |
eabfc7bc | 53 | |
fc4c3cec | 54 | =head1 Deprecations |
eabfc7bc | 55 | |
fc4c3cec | 56 | XXX Any deprecated features, syntax, modules etc. should be listed here. |
eabfc7bc | 57 | |
fc4c3cec RS |
58 | =head2 Module removals |
59 | ||
60 | XXX Remove this section if inapplicable. | |
61 | ||
62 | The following modules will be removed from the core distribution in a | |
63 | future release, and will at that time need to be installed from CPAN. | |
64 | Distributions on CPAN which require these modules will need to list them as | |
65 | prerequisites. | |
66 | ||
67 | The core versions of these modules will now issue C<"deprecated">-category | |
68 | warnings to alert you to this fact. To silence these deprecation warnings, | |
69 | install the modules in question from CPAN. | |
70 | ||
71 | Note that these are (with rare exceptions) fine modules that you are encouraged | |
72 | to continue to use. Their disinclusion from core primarily hinges on their | |
73 | necessity to bootstrapping a fully functional, CPAN-capable Perl installation, | |
74 | not usually on concerns over their design. | |
75 | ||
76 | =over | |
77 | ||
78 | =item XXX | |
79 | ||
80 | XXX Note that deprecated modules should be listed here even if they are listed | |
81 | as an updated module in the L</Modules and Pragmata> section. | |
82 | ||
83 | =back | |
84 | ||
85 | [ List each other deprecation as a =head2 entry ] | |
86 | ||
87 | =head1 Performance Enhancements | |
88 | ||
89 | XXX Changes which enhance performance without changing behaviour go here. | |
90 | There may well be none in a stable release. | |
91 | ||
92 | [ List each enhancement as a =item entry ] | |
eabfc7bc | 93 | |
73d6481e | 94 | =over 4 |
eabfc7bc | 95 | |
73d6481e | 96 | =item * |
eabfc7bc | 97 | |
fc4c3cec | 98 | XXX |
eabfc7bc | 99 | |
fc4c3cec | 100 | =back |
eabfc7bc | 101 | |
fc4c3cec | 102 | =head1 Modules and Pragmata |
eabfc7bc | 103 | |
fc4c3cec RS |
104 | XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> |
105 | go here. If Module::CoreList is updated, generate an initial draft of the | |
106 | following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary | |
107 | for important changes should then be added by hand. In an ideal world, | |
108 | dual-life modules would have a F<Changes> file that could be cribbed. | |
eabfc7bc | 109 | |
fc4c3cec | 110 | [ Within each section, list entries as a =item entry ] |
eabfc7bc | 111 | |
fc4c3cec | 112 | =head2 New Modules and Pragmata |
eabfc7bc | 113 | |
fc4c3cec | 114 | =over 4 |
eabfc7bc | 115 | |
73d6481e | 116 | =item * |
eabfc7bc | 117 | |
fc4c3cec | 118 | XXX |
eabfc7bc | 119 | |
fc4c3cec | 120 | =back |
eabfc7bc | 121 | |
fc4c3cec RS |
122 | =head2 Updated Modules and Pragmata |
123 | ||
124 | =over 4 | |
eabfc7bc RS |
125 | |
126 | =item * | |
127 | ||
fc4c3cec | 128 | L<XXX> has been upgraded from version A.xx to B.yy. |
eabfc7bc | 129 | |
fc4c3cec RS |
130 | =back |
131 | ||
132 | =head2 Removed Modules and Pragmata | |
eabfc7bc | 133 | |
fc4c3cec | 134 | =over 4 |
374c951f SH |
135 | |
136 | =item * | |
137 | ||
fc4c3cec | 138 | XXX |
e586de20 | 139 | |
fc4c3cec | 140 | =back |
e586de20 | 141 | |
fc4c3cec | 142 | =head1 Documentation |
fd0a842f | 143 | |
fc4c3cec RS |
144 | XXX Changes to files in F<pod/> go here. Consider grouping entries by |
145 | file and be sure to link to the appropriate page, e.g. L<perlfunc>. | |
fd0a842f | 146 | |
fc4c3cec | 147 | =head2 New Documentation |
99527ef1 | 148 | |
fc4c3cec | 149 | XXX Changes which create B<new> files in F<pod/> go here. |
99527ef1 | 150 | |
fc4c3cec | 151 | =head3 L<XXX> |
a4f8ff46 | 152 | |
fc4c3cec | 153 | XXX Description of the purpose of the new file here |
a4f8ff46 | 154 | |
fc4c3cec | 155 | =head2 Changes to Existing Documentation |
73d6481e | 156 | |
fc4c3cec RS |
157 | XXX Changes which significantly change existing files in F<pod/> go here. |
158 | However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> | |
159 | section. | |
160 | ||
161 | =head3 L<XXX> | |
73d6481e | 162 | |
fc4c3cec | 163 | =over 4 |
eabfc7bc RS |
164 | |
165 | =item * | |
166 | ||
fc4c3cec | 167 | XXX Description of the change here |
b7b593d8 | 168 | |
fc4c3cec | 169 | =back |
b7b593d8 | 170 | |
fc4c3cec | 171 | =head1 Diagnostics |
b7b593d8 | 172 | |
fc4c3cec RS |
173 | The following additions or changes have been made to diagnostic output, |
174 | including warnings and fatal error messages. For the complete list of | |
175 | diagnostic messages, see L<perldiag>. | |
b7b593d8 | 176 | |
fc4c3cec RS |
177 | XXX New or changed warnings emitted by the core's C<C> code go here. Also |
178 | include any changes in L<perldiag> that reconcile it to the C<C> code. | |
b7b593d8 | 179 | |
fc4c3cec | 180 | =head2 New Diagnostics |
b7b593d8 | 181 | |
fc4c3cec RS |
182 | XXX Newly added diagnostic messages go under here, separated into New Errors |
183 | and New Warnings | |
b7b593d8 | 184 | |
fc4c3cec RS |
185 | =head3 New Errors |
186 | ||
187 | =over 4 | |
eabfc7bc | 188 | |
ef5cf9f5 TC |
189 | =item * |
190 | ||
fc4c3cec | 191 | XXX L<message|perldiag/"message"> |
72b8c7a2 | 192 | |
fc4c3cec | 193 | =back |
72b8c7a2 | 194 | |
fc4c3cec RS |
195 | =head3 New Warnings |
196 | ||
197 | =over 4 | |
bdb6acef SH |
198 | |
199 | =item * | |
200 | ||
fc4c3cec | 201 | XXX L<message|perldiag/"message"> |
ef5cf9f5 | 202 | |
fc4c3cec | 203 | =back |
3d58dd24 | 204 | |
fc4c3cec RS |
205 | =head2 Changes to Existing Diagnostics |
206 | ||
207 | XXX Changes (i.e. rewording) of diagnostic messages go here | |
208 | ||
209 | =over 4 | |
4b951711 TC |
210 | |
211 | =item * | |
212 | ||
fc4c3cec | 213 | XXX Describe change here |
eabfc7bc | 214 | |
fc4c3cec | 215 | =back |
eabfc7bc | 216 | |
fc4c3cec | 217 | =head1 Utility Changes |
eabfc7bc | 218 | |
fc4c3cec RS |
219 | XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. |
220 | Most of these are built within the directory F<utils>. | |
eabfc7bc | 221 | |
fc4c3cec RS |
222 | [ List utility changes as a =head2 entry for each utility and =item |
223 | entries for each change | |
224 | Use L<XXX> with program names to get proper documentation linking. ] | |
eabfc7bc | 225 | |
fc4c3cec RS |
226 | =head2 L<XXX> |
227 | ||
228 | =over 4 | |
eabfc7bc RS |
229 | |
230 | =item * | |
231 | ||
fc4c3cec | 232 | XXX |
eabfc7bc | 233 | |
fc4c3cec | 234 | =back |
eabfc7bc | 235 | |
fc4c3cec | 236 | =head1 Configuration and Compilation |
eabfc7bc | 237 | |
fc4c3cec RS |
238 | XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools |
239 | go here. Any other changes to the Perl build process should be listed here. | |
240 | However, any platform-specific changes should be listed in the | |
241 | L</Platform Support> section, instead. | |
eabfc7bc | 242 | |
fc4c3cec | 243 | [ List changes as a =item entry ]. |
eabfc7bc | 244 | |
fc4c3cec | 245 | =over 4 |
eabfc7bc RS |
246 | |
247 | =item * | |
248 | ||
fc4c3cec | 249 | XXX |
eabfc7bc | 250 | |
fc4c3cec | 251 | =back |
eabfc7bc | 252 | |
fc4c3cec | 253 | =head1 Testing |
eabfc7bc | 254 | |
fc4c3cec RS |
255 | XXX Any significant changes to the testing of a freshly built perl should be |
256 | listed here. Changes which create B<new> files in F<t/> go here as do any | |
257 | large changes to the testing harness (e.g. when parallel testing was added). | |
258 | Changes to existing files in F<t/> aren't worth summarizing, although the bugs | |
259 | that they represent may be covered elsewhere. | |
260 | ||
261 | [ List each test improvement as a =item entry ] | |
262 | ||
263 | =over 4 | |
eabfc7bc | 264 | |
fc4c3cec | 265 | =item * |
eabfc7bc | 266 | |
fc4c3cec | 267 | XXX |
eabfc7bc | 268 | |
2cfe9b50 | 269 | =back |
33ca8d3c | 270 | |
73d6481e | 271 | =head1 Platform Support |
eabfc7bc | 272 | |
fc4c3cec | 273 | XXX Any changes to platform support should be listed in the sections below. |
eabfc7bc | 274 | |
fc4c3cec RS |
275 | [ Within the sections, list each platform as a =item entry with specific |
276 | changes as paragraphs below it. ] | |
eabfc7bc | 277 | |
fc4c3cec | 278 | =head2 New Platforms |
42fe7840 | 279 | |
fc4c3cec RS |
280 | XXX List any platforms that this version of perl compiles on, that previous |
281 | versions did not. These will either be enabled by new files in the F<hints/> | |
282 | directories, or new subdirectories and F<README> files at the top level of the | |
283 | source tree. | |
284 | ||
285 | =over 4 | |
42fe7840 | 286 | |
fc4c3cec RS |
287 | =item XXX-some-platform |
288 | ||
289 | XXX | |
42fe7840 CB |
290 | |
291 | =back | |
292 | ||
fc4c3cec | 293 | =head2 Discontinued Platforms |
eabfc7bc | 294 | |
fc4c3cec | 295 | XXX List any platforms that this version of perl no longer compiles on. |
269713a1 | 296 | |
fc4c3cec | 297 | =over 4 |
269713a1 | 298 | |
fc4c3cec | 299 | =item XXX-some-platform |
269713a1 | 300 | |
fc4c3cec | 301 | XXX |
463e63a4 | 302 | |
fc4c3cec | 303 | =back |
463e63a4 | 304 | |
fc4c3cec | 305 | =head2 Platform-Specific Notes |
9c0328ac | 306 | |
fc4c3cec RS |
307 | XXX List any changes for specific platforms. This could include configuration |
308 | and compilation changes or changes in portability/compatibility. However, | |
309 | changes within modules for platforms should generally be listed in the | |
310 | L</Modules and Pragmata> section. | |
9c0328ac | 311 | |
fc4c3cec RS |
312 | =over 4 |
313 | ||
7d380357 | 314 | =item VMS |
fc4c3cec | 315 | |
7d380357 RS |
316 | =over |
317 | ||
318 | =item * | |
319 | ||
320 | The minimum supported version of VMS is now v7.3-2, released in 2003. As a | |
321 | side effect of this change, VAX is no longer supported as the terminal | |
322 | release of OpenVMS VAX was v7.3 in 2001. | |
323 | ||
324 | =back | |
eabfc7bc | 325 | |
2cfe9b50 | 326 | =back |
eabfc7bc | 327 | |
fc4c3cec RS |
328 | =head1 Internal Changes |
329 | ||
330 | XXX Changes which affect the interface available to C<XS> code go here. Other | |
331 | significant internal changes for future core maintainers should be noted as | |
332 | well. | |
333 | ||
334 | [ List each change as a =item entry ] | |
eabfc7bc | 335 | |
2cfe9b50 | 336 | =over 4 |
eabfc7bc RS |
337 | |
338 | =item * | |
339 | ||
fc4c3cec | 340 | XXX |
eabfc7bc | 341 | |
fc4c3cec | 342 | =back |
302ef3d4 | 343 | |
fc4c3cec | 344 | =head1 Selected Bug Fixes |
302ef3d4 | 345 | |
fc4c3cec RS |
346 | XXX Important bug fixes in the core language are summarized here. Bug fixes in |
347 | files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. | |
eabfc7bc | 348 | |
fc4c3cec RS |
349 | [ List each fix as a =item entry ] |
350 | ||
351 | =over 4 | |
eabfc7bc | 352 | |
73d6481e | 353 | =item * |
eabfc7bc | 354 | |
fc4c3cec | 355 | XXX |
eabfc7bc | 356 | |
fc4c3cec RS |
357 | =back |
358 | ||
359 | =head1 Known Problems | |
360 | ||
361 | XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any | |
362 | tests that had to be C<TODO>ed for the release would be noted here. Unfixed | |
363 | platform specific bugs also go here. | |
364 | ||
365 | [ List each fix as a =item entry ] | |
eabfc7bc | 366 | |
fc4c3cec RS |
367 | =over 4 |
368 | ||
369 | =item * | |
eabfc7bc | 370 | |
fc4c3cec | 371 | XXX |
eabfc7bc | 372 | |
73d6481e | 373 | =back |
eabfc7bc | 374 | |
fc4c3cec | 375 | =head1 Errata From Previous Releases |
eabfc7bc | 376 | |
fc4c3cec | 377 | =over 4 |
eabfc7bc | 378 | |
fc4c3cec | 379 | =item * |
2a7a05b4 | 380 | |
fc4c3cec RS |
381 | XXX Add anything here that we forgot to add, or were mistaken about, in |
382 | the perldelta of a previous release. | |
30aa8e3f | 383 | |
fc4c3cec | 384 | =back |
30aa8e3f | 385 | |
fc4c3cec RS |
386 | =head1 Obituary |
387 | ||
388 | XXX If any significant core contributor has died, we've added a short obituary | |
389 | here. | |
390 | ||
391 | =head1 Acknowledgements | |
2a7a05b4 | 392 | |
fc4c3cec | 393 | XXX Generate this with: |
2cfe9b50 | 394 | |
fc4c3cec | 395 | perl Porting/acknowledgements.pl v5.23.1..HEAD |
f5b73711 | 396 | |
44691e6f AB |
397 | =head1 Reporting Bugs |
398 | ||
e08634c5 SH |
399 | If you find what you think is a bug, you might check the articles recently |
400 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at | |
fc4c3cec RS |
401 | L<https://rt.perl.org/> . There may also be information at |
402 | L<http://www.perl.org/> , the Perl Home Page. | |
44691e6f | 403 | |
e08634c5 SH |
404 | If you believe you have an unreported bug, please run the L<perlbug> program |
405 | included with your release. Be sure to trim your bug down to a tiny but | |
406 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
407 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. | |
44691e6f AB |
408 | |
409 | If the bug you are reporting has security implications, which make it | |
e08634c5 SH |
410 | inappropriate to send to a publicly archived mailing list, then please send it |
411 | to perl5-security-report@perl.org. This points to a closed subscription | |
412 | unarchived mailing list, which includes all the core committers, who will be | |
413 | able to help assess the impact of issues, figure out a resolution, and help | |
f9001595 | 414 | co-ordinate the release of patches to mitigate or fix the problem across all |
e08634c5 SH |
415 | platforms on which Perl is supported. Please only use this address for |
416 | security issues in the Perl core, not for modules independently distributed on | |
417 | CPAN. | |
44691e6f AB |
418 | |
419 | =head1 SEE ALSO | |
420 | ||
e08634c5 SH |
421 | The F<Changes> file for an explanation of how to view exhaustive details on |
422 | what changed. | |
44691e6f AB |
423 | |
424 | The F<INSTALL> file for how to build Perl. | |
425 | ||
426 | The F<README> file for general stuff. | |
427 | ||
428 | The F<Artistic> and F<Copying> files for copyright information. | |
429 | ||
430 | =cut |