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44691e6f AB |
1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
09f4604f 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 v5.19.5 | |
e128ab2c | 9 | |
4eabcf70 | 10 | =head1 DESCRIPTION |
6db9054f | 11 | |
09f4604f | 12 | This document describes differences between the 5.19.4 release and the 5.19.5 |
e08634c5 | 13 | release. |
6db9054f | 14 | |
09f4604f SH |
15 | If you are upgrading from an earlier release such as 5.19.3, first read |
16 | L<perl5194delta>, which describes differences between 5.19.3 and 5.19.4. | |
18ae6bbc | 17 | |
09f4604f | 18 | =head1 Notice |
18ae6bbc | 19 | |
09f4604f | 20 | XXX Any important notices here |
f2ab313d | 21 | |
09f4604f | 22 | =head1 Core Enhancements |
84d7ce3c | 23 | |
09f4604f SH |
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. | |
f53b57fd | 27 | |
09f4604f | 28 | [ List each enhancement as a =head2 entry ] |
f53b57fd | 29 | |
a9c9e371 KW |
30 | =head2 Unicode 6.3 now supported |
31 | ||
32 | Perl now supports and is shipped with Unicode 6.3 (though Perl may be | |
33 | recompiled with any previous Unicode release as well). A detailed | |
34 | list of Unicode 6.3 changes is at | |
35 | L<http://www.unicode.org/versions/Unicode6.3.0/>. | |
36 | ||
09f4604f | 37 | =head1 Security |
972690a1 | 38 | |
09f4604f SH |
39 | XXX Any security-related notices go here. In particular, any security |
40 | vulnerabilities closed should be noted here rather than in the | |
41 | L</Selected Bug Fixes> section. | |
972690a1 | 42 | |
09f4604f | 43 | [ List each security issue as a =head2 entry ] |
972690a1 | 44 | |
ba03bc34 | 45 | =head1 Incompatible Changes |
a3fb66a4 | 46 | |
09f4604f | 47 | XXX For a release on a stable branch, this section aspires to be: |
b29f65fc | 48 | |
09f4604f SH |
49 | There are no changes intentionally incompatible with 5.XXX.XXX |
50 | If any exist, they are bugs, and we request that you submit a | |
51 | report. See L</Reporting Bugs> below. | |
a3fb66a4 | 52 | |
09f4604f | 53 | [ List each incompatible change as a =head2 entry ] |
42bff0d9 | 54 | |
09f4604f | 55 | =head1 Deprecations |
082a4c42 | 56 | |
09f4604f | 57 | XXX Any deprecated features, syntax, modules etc. should be listed here. |
082a4c42 | 58 | |
09f4604f | 59 | =head2 Module removals |
082a4c42 | 60 | |
09f4604f | 61 | XXX Remove this section if inapplicable. |
00c5962f | 62 | |
09f4604f SH |
63 | The following modules will be removed from the core distribution in a |
64 | future release, and will at that time need to be installed from CPAN. | |
65 | Distributions on CPAN which require these modules will need to list them as | |
66 | prerequisites. | |
00c5962f | 67 | |
09f4604f SH |
68 | The core versions of these modules will now issue C<"deprecated">-category |
69 | warnings to alert you to this fact. To silence these deprecation warnings, | |
70 | install the modules in question from CPAN. | |
3b6e1650 | 71 | |
09f4604f SH |
72 | Note that these are (with rare exceptions) fine modules that you are encouraged |
73 | to continue to use. Their disinclusion from core primarily hinges on their | |
74 | necessity to bootstrapping a fully functional, CPAN-capable Perl installation, | |
75 | not usually on concerns over their design. | |
00c5962f | 76 | |
09f4604f | 77 | =over |
8c24c1f7 | 78 | |
09f4604f SH |
79 | XXX Note that deprecated modules should be listed here even if they are listed |
80 | as an updated module in the L</Modules and Pragmata> section. | |
479090d3 | 81 | |
09f4604f | 82 | =back |
479090d3 | 83 | |
09f4604f | 84 | [ List each other deprecation as a =head2 entry ] |
479090d3 | 85 | |
09f4604f | 86 | =head1 Performance Enhancements |
8c24c1f7 | 87 | |
09f4604f SH |
88 | XXX Changes which enhance performance without changing behaviour go here. |
89 | There may well be none in a stable release. | |
8c24c1f7 | 90 | |
09f4604f | 91 | [ List each enhancement as a =item entry ] |
d5dcec3a | 92 | |
6ffbec2c Z |
93 | =over 4 |
94 | ||
95 | =item * | |
96 | ||
86a8e4b1 KW |
97 | Perl has an optimizer for regular expression patterns. It analyzes the |
98 | pattern to find things such as the minimum length a string has to be to | |
99 | match, etc. It now better handles code points that are above the Latin1 | |
100 | range. | |
d5dcec3a | 101 | |
6ffbec2c Z |
102 | =back |
103 | ||
09f4604f | 104 | =head1 Modules and Pragmata |
5565c738 | 105 | |
09f4604f SH |
106 | XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> |
107 | go here. If Module::CoreList is updated, generate an initial draft of the | |
108 | following sections using F<Porting/corelist-perldelta.pl>, which prints stub | |
109 | entries to STDOUT. Results can be pasted in place of the '=head2' entries | |
110 | below. A paragraph summary for important changes should then be added by hand. | |
111 | In an ideal world, dual-life modules would have a F<Changes> file that could be | |
112 | cribbed. | |
5565c738 | 113 | |
09f4604f | 114 | [ Within each section, list entries as a =item entry ] |
5565c738 | 115 | |
09f4604f | 116 | =head2 New Modules and Pragmata |
8c24c1f7 | 117 | |
09f4604f | 118 | =over 4 |
8c24c1f7 SH |
119 | |
120 | =item * | |
121 | ||
09f4604f | 122 | XXX |
99366d6d | 123 | |
583aa5c2 RS |
124 | =back |
125 | ||
09f4604f | 126 | =head2 Updated Modules and Pragmata |
1944fb52 SH |
127 | |
128 | =over 4 | |
129 | ||
130 | =item * | |
131 | ||
ff4ad1c0 SH |
132 | L<autodie> has been upgraded from version 2.21 to 2.22. |
133 | ||
134 | No changes have been made to the installed code other than the version bump to | |
135 | keep in sync with the latest CPAN release. | |
136 | ||
137 | =item * | |
138 | ||
fa5fbb39 SH |
139 | L<Module::CoreList> has been upgraded from version 2.99 to 3.00. |
140 | ||
141 | The list of Perl versions covered has been updated. | |
1944fb52 | 142 | |
b7c730ff SH |
143 | =item * |
144 | ||
145 | The podlators modules have been upgraded from version 2.5.1 to 2.5.2. | |
146 | ||
147 | Numerous updates and bug fixes are incorporated. See the F<Changes> file in | |
148 | the CPAN distribution for full details. | |
149 | ||
2d8e8368 SH |
150 | =back |
151 | ||
09f4604f | 152 | =head2 Removed Modules and Pragmata |
a71a93a7 | 153 | |
2d8e8368 | 154 | =over 4 |
a71a93a7 TC |
155 | |
156 | =item * | |
157 | ||
09f4604f | 158 | XXX |
a71a93a7 | 159 | |
1944fb52 SH |
160 | =back |
161 | ||
09f4604f | 162 | =head1 Documentation |
1944fb52 | 163 | |
09f4604f SH |
164 | XXX Changes to files in F<pod/> go here. Consider grouping entries by |
165 | file and be sure to link to the appropriate page, e.g. L<perlfunc>. | |
1944fb52 | 166 | |
09f4604f | 167 | =head2 New Documentation |
1944fb52 | 168 | |
09f4604f | 169 | XXX Changes which create B<new> files in F<pod/> go here. |
195e3ea0 | 170 | |
09f4604f | 171 | =head3 L<XXX> |
a3fb66a4 | 172 | |
09f4604f | 173 | XXX Description of the purpose of the new file here |
a3fb66a4 | 174 | |
09f4604f | 175 | =head2 Changes to Existing Documentation |
a3fb66a4 | 176 | |
09f4604f SH |
177 | XXX Changes which significantly change existing files in F<pod/> go here. |
178 | However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> | |
179 | section. | |
a3fb66a4 | 180 | |
09f4604f | 181 | =head3 L<XXX> |
2d8e8368 SH |
182 | |
183 | =over 4 | |
184 | ||
185 | =item * | |
186 | ||
09f4604f | 187 | XXX Description of the change here |
2d8e8368 SH |
188 | |
189 | =back | |
190 | ||
c0ca71c9 AP |
191 | =head1 Diagnostics |
192 | ||
193 | The following additions or changes have been made to diagnostic output, | |
194 | including warnings and fatal error messages. For the complete list of | |
195 | diagnostic messages, see L<perldiag>. | |
196 | ||
09f4604f SH |
197 | XXX New or changed warnings emitted by the core's C<C> code go here. Also |
198 | include any changes in L<perldiag> that reconcile it to the C<C> code. | |
199 | ||
c0ca71c9 AP |
200 | =head2 New Diagnostics |
201 | ||
09f4604f SH |
202 | XXX Newly added diagnostic messages go under here, separated into New Errors |
203 | and New Warnings | |
204 | ||
12dcbffb | 205 | =head3 New Errors |
583aa5c2 | 206 | |
38663f11 | 207 | =over 4 |
583aa5c2 | 208 | |
b8a02ff1 | 209 | =item * |
583aa5c2 | 210 | |
09f4604f | 211 | XXX L<message|perldiag/"message"> |
4a0af295 | 212 | |
b8a02ff1 | 213 | =back |
583aa5c2 | 214 | |
12dcbffb | 215 | =head3 New Warnings |
96d496e4 | 216 | |
38663f11 | 217 | =over 4 |
b8a02ff1 DG |
218 | |
219 | =item * | |
220 | ||
09f4604f | 221 | XXX L<message|perldiag/"message"> |
dcc95d06 | 222 | |
12dcbffb | 223 | =back |
1310e590 | 224 | |
ba03bc34 SH |
225 | =head2 Changes to Existing Diagnostics |
226 | ||
09f4604f | 227 | XXX Changes (i.e. rewording) of diagnostic messages go here |
c1d900c3 | 228 | |
09f4604f | 229 | =over 4 |
e38fc308 | 230 | |
4a0af295 SH |
231 | =item * |
232 | ||
09f4604f | 233 | XXX Describe change here |
4a0af295 | 234 | |
ba03bc34 | 235 | =back |
a34da6c4 | 236 | |
ba03bc34 | 237 | =head1 Utility Changes |
a34da6c4 | 238 | |
09f4604f SH |
239 | XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. |
240 | Most of these are built within the directories F<utils> and F<x2p>. | |
7f1d4316 | 241 | |
09f4604f SH |
242 | [ List utility changes as a =head3 entry for each utility and =item |
243 | entries for each change | |
244 | Use L<XXX> with program names to get proper documentation linking. ] | |
ef947715 | 245 | |
09f4604f | 246 | =head3 L<XXX> |
ef947715 | 247 | |
12dcbffb | 248 | =over 4 |
21c01741 | 249 | |
467582e8 FC |
250 | =item * |
251 | ||
09f4604f | 252 | XXX |
467582e8 | 253 | |
ba03bc34 | 254 | =back |
64da853d | 255 | |
09f4604f | 256 | =head1 Configuration and Compilation |
8c24c1f7 | 257 | |
09f4604f SH |
258 | XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools |
259 | go here. Any other changes to the Perl build process should be listed here. | |
260 | However, any platform-specific changes should be listed in the | |
261 | L</Platform Support> section, instead. | |
8c24c1f7 | 262 | |
09f4604f | 263 | [ List changes as a =item entry ]. |
215588ba | 264 | |
09f4604f | 265 | =over 4 |
b895ac6f SH |
266 | |
267 | =item * | |
268 | ||
09f4604f | 269 | XXX |
8c24c1f7 | 270 | |
09f4604f | 271 | =back |
215588ba | 272 | |
09f4604f | 273 | =head1 Testing |
215588ba | 274 | |
09f4604f SH |
275 | XXX Any significant changes to the testing of a freshly built perl should be |
276 | listed here. Changes which create B<new> files in F<t/> go here as do any | |
277 | large changes to the testing harness (e.g. when parallel testing was added). | |
278 | Changes to existing files in F<t/> aren't worth summarizing, although the bugs | |
279 | that they represent may be covered elsewhere. | |
b895ac6f | 280 | |
09f4604f | 281 | [ List each test improvement as a =item entry ] |
b895ac6f | 282 | |
09f4604f | 283 | =over 4 |
8c24c1f7 SH |
284 | |
285 | =item * | |
286 | ||
09f4604f | 287 | XXX |
eaed284b | 288 | |
ba03bc34 | 289 | =back |
0335212c | 290 | |
ba03bc34 | 291 | =head1 Platform Support |
0335212c | 292 | |
09f4604f | 293 | XXX Any changes to platform support should be listed in the sections below. |
019705bc | 294 | |
09f4604f SH |
295 | [ Within the sections, list each platform as a =item entry with specific |
296 | changes as paragraphs below it. ] | |
297 | ||
298 | =head2 New Platforms | |
25921d77 | 299 | |
09f4604f SH |
300 | XXX List any platforms that this version of perl compiles on, that previous |
301 | versions did not. These will either be enabled by new files in the F<hints/> | |
302 | directories, or new subdirectories and F<README> files at the top level of the | |
303 | source tree. | |
84d7ce3c | 304 | |
09f4604f | 305 | =over 4 |
84d7ce3c | 306 | |
09f4604f | 307 | =item XXX-some-platform |
25921d77 | 308 | |
09f4604f | 309 | XXX |
28ea507e | 310 | |
ba03bc34 | 311 | =back |
28ea507e | 312 | |
ba03bc34 | 313 | =head2 Discontinued Platforms |
28ea507e | 314 | |
09f4604f | 315 | XXX List any platforms that this version of perl no longer compiles on. |
7b0e9f13 | 316 | |
ba03bc34 | 317 | =over 4 |
074d6753 | 318 | |
09f4604f | 319 | =item XXX-some-platform |
074d6753 | 320 | |
09f4604f | 321 | XXX |
4e5b563d | 322 | |
ba03bc34 | 323 | =back |
4e5b563d | 324 | |
ba03bc34 | 325 | =head2 Platform-Specific Notes |
ee818f56 | 326 | |
09f4604f SH |
327 | XXX List any changes for specific platforms. This could include configuration |
328 | and compilation changes or changes in portability/compatibility. However, | |
329 | changes within modules for platforms should generally be listed in the | |
330 | L</Modules and Pragmata> section. | |
ff3b1402 | 331 | |
09f4604f | 332 | =over 4 |
efcbb8b2 | 333 | |
09f4604f | 334 | =item XXX-some-platform |
846aaad8 | 335 | |
09f4604f | 336 | XXX |
846aaad8 | 337 | |
ba03bc34 | 338 | =back |
efcbb8b2 | 339 | |
ba03bc34 | 340 | =head1 Internal Changes |
36813eeb | 341 | |
09f4604f SH |
342 | XXX Changes which affect the interface available to C<XS> code go here. Other |
343 | significant internal changes for future core maintainers should be noted as | |
344 | well. | |
6760cac5 | 345 | |
09f4604f | 346 | [ List each change as a =item entry ] |
671f9ff7 | 347 | |
09f4604f | 348 | =over 4 |
6a67a797 | 349 | |
972690a1 KW |
350 | =item * |
351 | ||
09f4604f | 352 | XXX |
972690a1 | 353 | |
ba03bc34 | 354 | =back |
671f9ff7 | 355 | |
ba03bc34 | 356 | =head1 Selected Bug Fixes |
912a9a8f | 357 | |
09f4604f SH |
358 | XXX Important bug fixes in the core language are summarized here. Bug fixes in |
359 | files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. | |
85037c5c | 360 | |
09f4604f | 361 | [ List each fix as a =item entry ] |
1261f9a2 | 362 | |
09f4604f | 363 | =over 4 |
1144b44d FC |
364 | |
365 | =item * | |
366 | ||
09f4604f | 367 | XXX |
82d5eae5 | 368 | |
09f4604f | 369 | =back |
cfbe45f9 | 370 | |
09f4604f | 371 | =head1 Known Problems |
853f2d20 | 372 | |
09f4604f SH |
373 | XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any |
374 | tests that had to be C<TODO>ed for the release would be noted here. Unfixed | |
375 | platform specific bugs also go here. | |
853f2d20 | 376 | |
09f4604f | 377 | [ List each fix as a =item entry ] |
84fd7372 | 378 | |
09f4604f | 379 | =over 4 |
84fd7372 | 380 | |
84d7ce3c SH |
381 | =item * |
382 | ||
09f4604f | 383 | XXX |
84d7ce3c | 384 | |
09f4604f | 385 | =back |
176f22e8 | 386 | |
09f4604f | 387 | =head1 Obituary |
176f22e8 | 388 | |
09f4604f SH |
389 | XXX If any significant core contributor has died, we've added a short obituary |
390 | here. | |
18e2e6cd | 391 | |
583aa5c2 | 392 | =head1 Acknowledgements |
a75569c0 | 393 | |
09f4604f SH |
394 | XXX Generate this with: |
395 | ||
396 | perl Porting/acknowledgements.pl v5.19.4..HEAD | |
f5b73711 | 397 | |
44691e6f AB |
398 | =head1 Reporting Bugs |
399 | ||
e08634c5 SH |
400 | If you find what you think is a bug, you might check the articles recently |
401 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at | |
402 | http://rt.perl.org/perlbug/ . There may also be information at | |
403 | http://www.perl.org/ , the Perl Home Page. | |
44691e6f | 404 | |
e08634c5 SH |
405 | If you believe you have an unreported bug, please run the L<perlbug> program |
406 | included with your release. Be sure to trim your bug down to a tiny but | |
407 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
408 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. | |
44691e6f AB |
409 | |
410 | If the bug you are reporting has security implications, which make it | |
e08634c5 SH |
411 | inappropriate to send to a publicly archived mailing list, then please send it |
412 | to perl5-security-report@perl.org. This points to a closed subscription | |
413 | unarchived mailing list, which includes all the core committers, who will be | |
414 | able to help assess the impact of issues, figure out a resolution, and help | |
f9001595 | 415 | co-ordinate the release of patches to mitigate or fix the problem across all |
e08634c5 SH |
416 | platforms on which Perl is supported. Please only use this address for |
417 | security issues in the Perl core, not for modules independently distributed on | |
418 | CPAN. | |
44691e6f AB |
419 | |
420 | =head1 SEE ALSO | |
421 | ||
e08634c5 SH |
422 | The F<Changes> file for an explanation of how to view exhaustive details on |
423 | what changed. | |
44691e6f AB |
424 | |
425 | The F<INSTALL> file for how to build Perl. | |
426 | ||
427 | The F<README> file for general stuff. | |
428 | ||
429 | The F<Artistic> and F<Copying> files for copyright information. | |
430 | ||
431 | =cut |