5 [ this is a template for a new perldelta file. Any text flagged as
6 XXX needs to be processed before release. ]
8 perldelta - what is new for perl v5.15.7
12 This document describes differences between the 5.15.6 release and
15 If you are upgrading from an earlier release such as 5.15.5, first read
16 L<perl5156delta>, which describes differences between 5.15.5 and
21 XXX Any important notices here
23 =head1 Core Enhancements
25 XXX New core language features go here. Summarise user-visible core language
26 enhancements. Particularly prominent performance optimisations could go
27 here, but most should go in the L</Performance Enhancements> section.
29 [ List each enhancement as a =head2 entry ]
31 =head2 C<use charnames> no longer needed for C<\N{I<name>}>
33 The C<charnames> module is now automatically loaded when needed as if
34 the C<:full> and C<:short> options had been specified. See
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.
43 [ List each security issue as a =head2 entry ]
45 =head1 Incompatible Changes
47 XXX For a release on a stable branch, this section aspires to be:
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.
53 [ List each incompatible change as a =head2 entry ]
57 XXX Any deprecated features, syntax, modules etc. should be listed here.
58 In particular, deprecated modules should be listed here even if they are
59 listed as an updated module in the L</Modules and Pragmata> section.
61 [ List each deprecation as a =head2 entry ]
63 =head1 Performance Enhancements
65 XXX Changes which enhance performance without changing behaviour go here. There
66 may well be none in a stable release.
68 [ List each enhancement as a =item entry ]
78 =head1 Modules and Pragmata
80 XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/>
81 go here. If Module::CoreList is updated, generate an initial draft of the
82 following sections using F<Porting/corelist-perldelta.pl>, which prints stub
83 entries to STDOUT. Results can be pasted in place of the '=head2' entries
84 below. A paragraph summary for important changes should then be added by hand.
85 In an ideal world, dual-life modules would have a F<Changes> file that could be
88 [ Within each section, list entries as a =item entry ]
90 =head2 New Modules and Pragmata
100 =head2 Updated Modules and Pragmata
106 L<XXX> has been upgraded from version 0.69 to version 0.70.
110 =head2 Removed Modules and Pragmata
122 XXX Changes to files in F<pod/> go here. Consider grouping entries by
123 file and be sure to link to the appropriate page, e.g. L<perlfunc>.
125 =head2 New Documentation
127 XXX Changes which create B<new> files in F<pod/> go here.
131 XXX Description of the purpose of the new file here
133 =head2 Changes to Existing Documentation
135 XXX Changes which significantly change existing files in F<pod/> go here.
136 However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics>
145 XXX Description of the change here
151 The following additions or changes have been made to diagnostic output,
152 including warnings and fatal error messages. For the complete list of
153 diagnostic messages, see L<perldiag>.
155 XXX New or changed warnings emitted by the core's C<C> code go here. Also
156 include any changes in L<perldiag> that reconcile it to the C<C> code.
158 [ Within each section, list entries as a =item entry that links to perldiag,
163 L<Invalid version object|perldiag/"Invalid version object">
166 =head2 New Diagnostics
168 XXX Newly added diagnostic messages go here
176 XXX L<message|perldiag/"message">
186 XXX L<message|perldiag/"message">
190 =head2 Changes to Existing Diagnostics
192 XXX Changes (i.e. rewording) of diagnostic messages go here
198 XXX Describe change here
202 =head1 Utility Changes
204 XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go
205 here. Most of these are built within the directories F<utils> and F<x2p>.
207 [ List utility changes as a =head3 entry for each utility and =item
208 entries for each change
209 Use L<XXX> with program names to get proper documentation linking. ]
221 =head1 Configuration and Compilation
223 XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools
224 go here. Any other changes to the Perl build process should be listed here.
225 However, any platform-specific changes should be listed in the
226 L</Platform Support> section, instead.
228 [ List changes as a =item entry ].
240 XXX Any significant changes to the testing of a freshly built perl should be
241 listed here. Changes which create B<new> files in F<t/> go here as do any
242 large changes to the testing harness (e.g. when parallel testing was added).
243 Changes to existing files in F<t/> aren't worth summarising, although the bugs
244 that they represent may be covered elsewhere.
246 [ List each test improvement as a =item entry ]
256 =head1 Platform Support
258 XXX Any changes to platform support should be listed in the sections below.
260 [ Within the sections, list each platform as a =item entry with specific
261 changes as paragraphs below it. ]
265 XXX List any platforms that this version of perl compiles on, that previous
266 versions did not. These will either be enabled by new files in the F<hints/>
267 directories, or new subdirectories and F<README> files at the top level of the
272 =item XXX-some-platform
278 =head2 Discontinued Platforms
280 XXX List any platforms that this version of perl no longer compiles on.
284 =item XXX-some-platform
290 =head2 Platform-Specific Notes
292 XXX List any changes for specific platforms. This could include configuration
293 and compilation changes or changes in portability/compatibility. However,
294 changes within modules for platforms should generally be listed in the
295 L</Modules and Pragmata> section.
299 =item XXX-some-platform
305 =head1 Internal Changes
307 XXX Changes which affect the interface available to C<XS> code go here.
308 Other significant internal changes for future core maintainers should
311 [ List each change as a =item entry ]
321 =head1 Selected Bug Fixes
323 XXX Important bug fixes in the core language are summarised here.
324 Bug fixes in files in F<ext/> and F<lib/> are best summarised in
325 L</Modules and Pragmata>.
327 [ List each fix as a =item entry ]
337 =head1 Known Problems
339 XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any
340 tests that had to be C<TODO>ed for the release would be noted here, unless
341 they were specific to a particular platform (see below).
343 This is a list of some significant unfixed bugs, which are regressions
344 from either 5.XXX.XXX or 5.XXX.XXX.
346 [ List each fix as a =item entry ]
358 XXX If any significant core contributor has died, we've added a short obituary
361 =head1 Acknowledgements
363 XXX Generate this with:
365 perl Porting/acknowledgements.pl v5.15.6..HEAD
367 =head1 Reporting Bugs
369 If you find what you think is a bug, you might check the articles
370 recently posted to the comp.lang.perl.misc newsgroup and the perl
371 bug database at http://rt.perl.org/perlbug/ . There may also be
372 information at http://www.perl.org/ , the Perl Home Page.
374 If you believe you have an unreported bug, please run the L<perlbug>
375 program included with your release. Be sure to trim your bug down
376 to a tiny but sufficient test case. Your bug report, along with the
377 output of C<perl -V>, will be sent off to perlbug@perl.org to be
378 analysed by the Perl porting team.
380 If the bug you are reporting has security implications, which make it
381 inappropriate to send to a publicly archived mailing list, then please send
382 it to perl5-security-report@perl.org. This points to a closed subscription
383 unarchived mailing list, which includes
384 all the core committers, who will be able
385 to help assess the impact of issues, figure out a resolution, and help
386 co-ordinate the release of patches to mitigate or fix the problem across all
387 platforms on which Perl is supported. Please only use this address for
388 security issues in the Perl core, not for modules independently
393 The F<Changes> file for an explanation of how to view exhaustive details
396 The F<INSTALL> file for how to build Perl.
398 The F<README> file for general stuff.
400 The F<Artistic> and F<Copying> files for copyright information.