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44691e6f AB |
1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
5d8c8c8a FR |
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 v5.17.5 | |
e128ab2c | 9 | |
4eabcf70 | 10 | =head1 DESCRIPTION |
6db9054f | 11 | |
5d8c8c8a | 12 | This document describes differences between the 5.17.4 release and the 5.17.5 |
e08634c5 | 13 | release. |
6db9054f | 14 | |
5d8c8c8a FR |
15 | If you are upgrading from an earlier release such as 5.17.3, first read |
16 | L<perl5174delta>, which describes differences between 5.17.3 and 5.17.4. | |
5faa50e9 | 17 | |
5d8c8c8a | 18 | =head1 Notice |
b932b266 | 19 | |
5d8c8c8a | 20 | XXX Any important notices here |
b932b266 | 21 | |
5d8c8c8a | 22 | =head1 Core Enhancements |
4db91b87 | 23 | |
5d8c8c8a FR |
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. | |
4db91b87 | 27 | |
5d8c8c8a | 28 | [ List each enhancement as a =head2 entry ] |
4db91b87 | 29 | |
aa170ab3 KW |
30 | =head2 Upgrade to Unicode 6.2 |
31 | ||
32 | Perl now supports the final version of Unicode 6.2. Earlier releases in | |
33 | the 5.17 series supported Unicode 6.2 beta versions. There were no | |
34 | substantive changes in the final Unicode 6.2 version from the most | |
35 | recent beta, included in Perl 5.17.4. A list of changes from Unicode | |
36 | 6.1 is at L<http://www.unicode.org/versions/Unicode6.2.0>. | |
37 | ||
5d8c8c8a | 38 | =head1 Security |
4db91b87 | 39 | |
5d8c8c8a FR |
40 | XXX Any security-related notices go here. In particular, any security |
41 | vulnerabilities closed should be noted here rather than in the | |
42 | L</Selected Bug Fixes> section. | |
4db91b87 | 43 | |
5d8c8c8a | 44 | [ List each security issue as a =head2 entry ] |
4db91b87 | 45 | |
916c45d9 | 46 | =head1 Incompatible Changes |
9c5f5e7a | 47 | |
5d8c8c8a | 48 | XXX For a release on a stable branch, this section aspires to be: |
4db91b87 | 49 | |
5d8c8c8a FR |
50 | There are no changes intentionally incompatible with 5.XXX.XXX |
51 | If any exist, they are bugs, and we request that you submit a | |
52 | report. See L</Reporting Bugs> below. | |
4db91b87 | 53 | |
5d8c8c8a | 54 | [ List each incompatible change as a =head2 entry ] |
4db91b87 | 55 | |
5d8c8c8a | 56 | =head1 Deprecations |
4db91b87 | 57 | |
5d8c8c8a FR |
58 | XXX Any deprecated features, syntax, modules etc. should be listed here. In |
59 | particular, deprecated modules should be listed here even if they are listed as | |
60 | an updated module in the L</Modules and Pragmata> section. | |
4db91b87 | 61 | |
5d8c8c8a | 62 | [ List each deprecation as a =head2 entry ] |
4db91b87 | 63 | |
5d8c8c8a | 64 | =head1 Performance Enhancements |
45f11e9c | 65 | |
5d8c8c8a FR |
66 | XXX Changes which enhance performance without changing behaviour go here. |
67 | There may well be none in a stable release. | |
45f11e9c | 68 | |
5d8c8c8a | 69 | [ List each enhancement as a =item entry ] |
9c5f5e7a | 70 | |
916c45d9 | 71 | =over 4 |
338a1057 SH |
72 | |
73 | =item * | |
74 | ||
5d8c8c8a | 75 | XXX |
0ace302a | 76 | |
5d8c8c8a | 77 | =back |
5faa50e9 | 78 | |
5d8c8c8a | 79 | =head1 Modules and Pragmata |
5faa50e9 | 80 | |
5d8c8c8a FR |
81 | XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> |
82 | go here. If Module::CoreList is updated, generate an initial draft of the | |
83 | following sections using F<Porting/corelist-perldelta.pl>, which prints stub | |
84 | entries to STDOUT. Results can be pasted in place of the '=head2' entries | |
85 | below. A paragraph summary for important changes should then be added by hand. | |
86 | In an ideal world, dual-life modules would have a F<Changes> file that could be | |
87 | cribbed. | |
5faa50e9 | 88 | |
5d8c8c8a | 89 | [ Within each section, list entries as a =item entry ] |
5faa50e9 | 90 | |
5d8c8c8a | 91 | =head2 New Modules and Pragmata |
5faa50e9 | 92 | |
5d8c8c8a | 93 | =over 4 |
5faa50e9 FR |
94 | |
95 | =item * | |
96 | ||
5d8c8c8a | 97 | XXX |
5faa50e9 | 98 | |
916c45d9 | 99 | =back |
0ace302a | 100 | |
916c45d9 | 101 | =head2 Updated Modules and Pragmata |
4cc02608 | 102 | |
916c45d9 | 103 | =over 4 |
e7b92d54 SH |
104 | |
105 | =item * | |
106 | ||
8852ba3c SH |
107 | L<Carp> has been upgraded from version 1.26 to 1.27. The C<longmess()> and |
108 | C<shortmess()> functions are now documented. | |
109 | ||
110 | =item * | |
111 | ||
112 | L<ExtUtils::CBuilder> has been upgraded from version 0.280208 to 0.280209. A | |
113 | list of symbols to export can now be passed to C<link()> when on Windows, as on | |
114 | other OSes [perl #115100]. | |
5faa50e9 | 115 | |
5d8c8c8a | 116 | =back |
5f877a7f | 117 | |
5d8c8c8a | 118 | =head2 Removed Modules and Pragmata |
5f877a7f | 119 | |
5d8c8c8a | 120 | =over 4 |
2a527d37 SH |
121 | |
122 | =item * | |
123 | ||
5d8c8c8a | 124 | XXX |
5faa50e9 | 125 | |
5d8c8c8a | 126 | =back |
5faa50e9 | 127 | |
5d8c8c8a | 128 | =head1 Documentation |
5faa50e9 | 129 | |
5d8c8c8a FR |
130 | XXX Changes to files in F<pod/> go here. Consider grouping entries by |
131 | file and be sure to link to the appropriate page, e.g. L<perlfunc>. | |
9c5f5e7a | 132 | |
5d8c8c8a | 133 | =head2 New Documentation |
5faa50e9 | 134 | |
5d8c8c8a | 135 | XXX Changes which create B<new> files in F<pod/> go here. |
eebee32b | 136 | |
5d8c8c8a | 137 | =head3 L<XXX> |
eebee32b | 138 | |
5d8c8c8a | 139 | XXX Description of the purpose of the new file here |
1ea91bbe | 140 | |
5d8c8c8a | 141 | =head2 Changes to Existing Documentation |
1ea91bbe | 142 | |
5d8c8c8a FR |
143 | XXX Changes which significantly change existing files in F<pod/> go here. |
144 | However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> | |
145 | section. | |
5faa50e9 | 146 | |
5d8c8c8a | 147 | =head3 L<XXX> |
5faa50e9 | 148 | |
5d8c8c8a | 149 | =over 4 |
1ea91bbe FR |
150 | |
151 | =item * | |
152 | ||
5d8c8c8a | 153 | XXX Description of the change here |
5faa50e9 | 154 | |
916c45d9 | 155 | =back |
9c5f5e7a | 156 | |
4eabcf70 | 157 | =head1 Diagnostics |
05c8f9ed | 158 | |
4eabcf70 TC |
159 | The following additions or changes have been made to diagnostic output, |
160 | including warnings and fatal error messages. For the complete list of | |
161 | diagnostic messages, see L<perldiag>. | |
ceb0881c | 162 | |
5d8c8c8a FR |
163 | XXX New or changed warnings emitted by the core's C<C> code go here. Also |
164 | include any changes in L<perldiag> that reconcile it to the C<C> code. | |
90519d0f | 165 | |
5d8c8c8a | 166 | =head2 New Diagnostics |
4db91b87 | 167 | |
5d8c8c8a FR |
168 | XXX Newly added diagnostic messages go under here, separated into New Errors |
169 | and New Warnings | |
4db91b87 | 170 | |
5d8c8c8a | 171 | =head3 New Errors |
4db91b87 | 172 | |
5d8c8c8a | 173 | =over 4 |
4db91b87 FC |
174 | |
175 | =item * | |
176 | ||
5d8c8c8a | 177 | XXX L<message|perldiag/"message"> |
4db91b87 | 178 | |
5d8c8c8a | 179 | =back |
4db91b87 | 180 | |
5d8c8c8a | 181 | =head3 New Warnings |
4db91b87 | 182 | |
5d8c8c8a | 183 | =over 4 |
90519d0f | 184 | |
1ea91bbe FR |
185 | =item * |
186 | ||
5d8c8c8a | 187 | XXX L<message|perldiag/"message"> |
1ea91bbe | 188 | |
61174fb5 | 189 | =back |
422287bf | 190 | |
916c45d9 | 191 | =head2 Changes to Existing Diagnostics |
c95d4104 | 192 | |
5d8c8c8a FR |
193 | XXX Changes (i.e. rewording) of diagnostic messages go here |
194 | ||
4eabcf70 | 195 | =over 4 |
7ab2ea42 | 196 | |
916c45d9 | 197 | =item * |
7ab2ea42 | 198 | |
5d8c8c8a | 199 | XXX Describe change here |
4db91b87 | 200 | |
5d8c8c8a | 201 | =back |
1ea91bbe | 202 | |
5d8c8c8a | 203 | =head1 Utility Changes |
1ea91bbe | 204 | |
5d8c8c8a FR |
205 | XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. |
206 | Most of these are built within the directories F<utils> and F<x2p>. | |
1ea91bbe | 207 | |
5d8c8c8a FR |
208 | [ List utility changes as a =head3 entry for each utility and =item |
209 | entries for each change | |
210 | Use L<XXX> with program names to get proper documentation linking. ] | |
1ea91bbe | 211 | |
5d8c8c8a | 212 | =head3 L<XXX> |
d7f7c515 | 213 | |
916c45d9 | 214 | =over 4 |
afc04f16 | 215 | |
b4cf37f5 FC |
216 | =item * |
217 | ||
5d8c8c8a | 218 | XXX |
b4cf37f5 | 219 | |
916c45d9 | 220 | =back |
b4cf37f5 | 221 | |
5d8c8c8a | 222 | =head1 Configuration and Compilation |
a21a3918 | 223 | |
5d8c8c8a FR |
224 | XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools |
225 | go here. Any other changes to the Perl build process should be listed here. | |
226 | However, any platform-specific changes should be listed in the | |
227 | L</Platform Support> section, instead. | |
a21a3918 | 228 | |
5d8c8c8a | 229 | [ List changes as a =item entry ]. |
a21a3918 | 230 | |
916c45d9 | 231 | =over 4 |
60ca243a | 232 | |
5d8c8c8a | 233 | =item * |
eebee32b | 234 | |
5d8c8c8a | 235 | XXX |
eebee32b | 236 | |
916c45d9 | 237 | =back |
d91f1bc9 | 238 | |
5d8c8c8a | 239 | =head1 Testing |
d91f1bc9 | 240 | |
5d8c8c8a FR |
241 | XXX Any significant changes to the testing of a freshly built perl should be |
242 | listed here. Changes which create B<new> files in F<t/> go here as do any | |
243 | large changes to the testing harness (e.g. when parallel testing was added). | |
244 | Changes to existing files in F<t/> aren't worth summarizing, although the bugs | |
245 | that they represent may be covered elsewhere. | |
3c774534 | 246 | |
5d8c8c8a | 247 | [ List each test improvement as a =item entry ] |
050862bb | 248 | |
5d8c8c8a | 249 | =over 4 |
050862bb DM |
250 | |
251 | =item * | |
252 | ||
5d8c8c8a | 253 | XXX |
050862bb | 254 | |
916c45d9 | 255 | =back |
d91f1bc9 | 256 | |
5d8c8c8a | 257 | =head1 Platform Support |
4db91b87 | 258 | |
5d8c8c8a | 259 | XXX Any changes to platform support should be listed in the sections below. |
4db91b87 | 260 | |
5d8c8c8a FR |
261 | [ Within the sections, list each platform as a =item entry with specific |
262 | changes as paragraphs below it. ] | |
4db91b87 | 263 | |
5d8c8c8a | 264 | =head2 New Platforms |
4db91b87 | 265 | |
5d8c8c8a FR |
266 | XXX List any platforms that this version of perl compiles on, that previous |
267 | versions did not. These will either be enabled by new files in the F<hints/> | |
268 | directories, or new subdirectories and F<README> files at the top level of the | |
269 | source tree. | |
4db91b87 | 270 | |
5d8c8c8a | 271 | =over 4 |
4db91b87 | 272 | |
5d8c8c8a | 273 | =item XXX-some-platform |
4db91b87 | 274 | |
5d8c8c8a | 275 | XXX |
4db91b87 | 276 | |
5d8c8c8a | 277 | =back |
4db91b87 | 278 | |
5d8c8c8a | 279 | =head2 Discontinued Platforms |
4db91b87 | 280 | |
5d8c8c8a | 281 | XXX List any platforms that this version of perl no longer compiles on. |
4db91b87 | 282 | |
5d8c8c8a | 283 | =over 4 |
4db91b87 | 284 | |
5d8c8c8a | 285 | =item XXX-some-platform |
4db91b87 | 286 | |
5d8c8c8a | 287 | XXX |
4db91b87 | 288 | |
5d8c8c8a | 289 | =back |
5faa50e9 | 290 | |
5d8c8c8a | 291 | =head2 Platform-Specific Notes |
5faa50e9 | 292 | |
5d8c8c8a FR |
293 | XXX List any changes for specific platforms. This could include configuration |
294 | and compilation changes or changes in portability/compatibility. However, | |
295 | changes within modules for platforms should generally be listed in the | |
296 | L</Modules and Pragmata> section. | |
5faa50e9 | 297 | |
5d8c8c8a | 298 | =over 4 |
5faa50e9 | 299 | |
5d8c8c8a | 300 | =item XXX-some-platform |
5faa50e9 | 301 | |
5d8c8c8a | 302 | XXX |
5faa50e9 | 303 | |
5d8c8c8a | 304 | =back |
5faa50e9 | 305 | |
5d8c8c8a | 306 | =head1 Internal Changes |
5faa50e9 | 307 | |
5d8c8c8a FR |
308 | XXX Changes which affect the interface available to C<XS> code go here. Other |
309 | significant internal changes for future core maintainers should be noted as | |
310 | well. | |
5faa50e9 | 311 | |
5d8c8c8a | 312 | [ List each change as a =item entry ] |
5faa50e9 | 313 | |
5d8c8c8a | 314 | =over 4 |
5faa50e9 FR |
315 | |
316 | =item * | |
317 | ||
5d8c8c8a | 318 | XXX |
d91f1bc9 | 319 | |
5d8c8c8a | 320 | =back |
31c15ce5 | 321 | |
5d8c8c8a | 322 | =head1 Selected Bug Fixes |
4db91b87 | 323 | |
5d8c8c8a FR |
324 | XXX Important bug fixes in the core language are summarized here. Bug fixes in |
325 | files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. | |
4db91b87 | 326 | |
5d8c8c8a | 327 | [ List each fix as a =item entry ] |
4db91b87 | 328 | |
5d8c8c8a | 329 | =over 4 |
4db91b87 FC |
330 | |
331 | =item * | |
332 | ||
a0dd190b KW |
333 | A bug, case-insensitive regex with UTF8-flagged strings, introduced |
334 | earlier in the 5.17 series has been fixed. [perl #114982] | |
4db91b87 | 335 | |
5d8c8c8a | 336 | =back |
4db91b87 | 337 | |
5d8c8c8a | 338 | =head1 Known Problems |
4db91b87 | 339 | |
5d8c8c8a FR |
340 | XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any |
341 | tests that had to be C<TODO>ed for the release would be noted here. Unfixed | |
342 | platform specific bugs also go here. | |
4db91b87 | 343 | |
5d8c8c8a | 344 | [ List each fix as a =item entry ] |
4db91b87 | 345 | |
5d8c8c8a | 346 | =over 4 |
4db91b87 | 347 | |
45f11e9c FC |
348 | =item * |
349 | ||
5d8c8c8a | 350 | XXX |
45f11e9c | 351 | |
916c45d9 | 352 | =back |
d91f1bc9 | 353 | |
5d8c8c8a | 354 | =head1 Obituary |
d91f1bc9 | 355 | |
5d8c8c8a FR |
356 | XXX If any significant core contributor has died, we've added a short obituary |
357 | here. | |
90519d0f | 358 | |
916c45d9 | 359 | =head1 Acknowledgements |
05bee12a | 360 | |
5d8c8c8a FR |
361 | XXX Generate this with: |
362 | ||
363 | perl Porting/acknowledgements.pl v5.17.4..HEAD | |
29cf780c | 364 | |
44691e6f AB |
365 | =head1 Reporting Bugs |
366 | ||
e08634c5 SH |
367 | If you find what you think is a bug, you might check the articles recently |
368 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at | |
369 | http://rt.perl.org/perlbug/ . There may also be information at | |
370 | http://www.perl.org/ , the Perl Home Page. | |
44691e6f | 371 | |
e08634c5 SH |
372 | If you believe you have an unreported bug, please run the L<perlbug> program |
373 | included with your release. Be sure to trim your bug down to a tiny but | |
374 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
375 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. | |
44691e6f AB |
376 | |
377 | If the bug you are reporting has security implications, which make it | |
e08634c5 SH |
378 | inappropriate to send to a publicly archived mailing list, then please send it |
379 | to perl5-security-report@perl.org. This points to a closed subscription | |
380 | unarchived mailing list, which includes all the core committers, who will be | |
381 | able to help assess the impact of issues, figure out a resolution, and help | |
f9001595 | 382 | co-ordinate the release of patches to mitigate or fix the problem across all |
e08634c5 SH |
383 | platforms on which Perl is supported. Please only use this address for |
384 | security issues in the Perl core, not for modules independently distributed on | |
385 | CPAN. | |
44691e6f AB |
386 | |
387 | =head1 SEE ALSO | |
388 | ||
e08634c5 SH |
389 | The F<Changes> file for an explanation of how to view exhaustive details on |
390 | what changed. | |
44691e6f AB |
391 | |
392 | The F<INSTALL> file for how to build Perl. | |
393 | ||
394 | The F<README> file for general stuff. | |
395 | ||
396 | The F<Artistic> and F<Copying> files for copyright information. | |
397 | ||
398 | =cut |