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1=encoding utf8
2
3=head1 NAME
4
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5[ this is a template for a new perldelta file. Any text flagged as
6XXX needs to be processed before release. ]
3a5c9134 7
9f7a72d0 8perldelta - what is new for perl v5.13.9
15e6cdd9 9
9f7a72d0 10=head1 DESCRIPTION
f6166f76 11
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12This document describes differences between the 5.13.8 release and
13the 5.13.9 release.
0d157ee2 14
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15If you are upgrading from an earlier release such as 5.13.7, first read
16L<perl5138delta>, which describes differences between 5.13.7 and
175.13.8.
0d157ee2 18
9f7a72d0 19=head1 Notice
0d157ee2 20
9f7a72d0 21XXX Any important notices here
0d157ee2 22
9f7a72d0 23=head1 Core Enhancements
0d157ee2 24
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25XXX New core language features go here. Summarise user-visible core language
26enhancements. Particularly prominent performance optimisations could go
27here, but most should go in the L</Performance Enhancements> section.
0d157ee2 28
9f7a72d0 29[ List each enhancement as a =head2 entry ]
0d157ee2 30
9f7a72d0 31=head1 Security
0d157ee2 32
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33XXX Any security-related notices go here. In particular, any security
34vulnerabilities closed should be noted here rather than in the
35L</Selected Bug Fixes> section.
bd8e866d 36
9f7a72d0 37[ List each security issue as a =head2 entry ]
bd8e866d 38
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39=head1 Incompatible Changes
40
9f7a72d0 41XXX For a release on a stable branch, this section aspires to be:
3a5c9134 42
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43 There are no changes intentionally incompatible with 5.XXX.XXX. If any
44 exist, they are bugs and reports are welcome.
3a5c9134 45
9f7a72d0 46[ List each incompatible change as a =head2 entry ]
d66e82e8 47
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48=head1 Deprecations
49
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50XXX Any deprecated features, syntax, modules etc. should be listed here.
51In particular, deprecated modules should be listed here even if they are
52listed as an updated module in the L</Modules and Pragmata> section.
5609d5f9 53
9f7a72d0 54[ List each deprecation as a =head2 entry ]
5609d5f9 55
9f7a72d0 56=head1 Performance Enhancements
5609d5f9 57
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58XXX Changes which enhance performance without changing behaviour go here. There
59may well be none in a stable release.
5609d5f9 60
9f7a72d0 61[ List each enhancement as a =item entry ]
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62
63=over 4
64
65=item *
66
9f7a72d0 67XXX
e1165778 68
9f7a72d0 69=back
121e1895 70
9f7a72d0 71=head1 Modules and Pragmata
2638c0ff 72
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73XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/>
74go here. If Module::CoreList is updated, generate an initial draft of the
75following sections using F<Porting/corelist-perldelta.pl>, which prints stub
76entries to STDOUT. Results can be pasted in place of the '=head2' entries
77below. A paragraph summary for important changes should then be added by hand.
78In an ideal world, dual-life modules would have a F<Changes> file that could be
79cribbed.
2638c0ff 80
9f7a72d0 81[ Within each section, list entries as a =item entry ]
17096837 82
9f7a72d0 83=head2 New Modules and Pragmata
2638c0ff 84
9f7a72d0 85=over 4
17096837 86
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87=item *
88
9f7a72d0 89XXX
17096837 90
9f7a72d0 91=back
e1165778 92
9f7a72d0 93=head2 Updated Modules and Pragmata
f295f417 94
9f7a72d0 95=over 4
17096837 96
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97=item *
98
9f7a72d0 99XXX
17096837 100
9f7a72d0 101=back
e1165778 102
9f7a72d0 103=head2 Removed Modules and Pragmata
b373eab8 104
9f7a72d0 105=over 4
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106
107=item *
108
9f7a72d0 109XXX
b6ae81ab 110
9f7a72d0 111=back
ca88a729 112
9f7a72d0 113=head1 Documentation
17096837 114
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115XXX Changes to files in F<pod/> go here. Consider grouping entries by
116file and be sure to link to the appropriate page, e.g. L<perlfunc>.
b6ae81ab 117
9f7a72d0 118=head2 New Documentation
e1165778 119
9f7a72d0 120XXX Changes which create B<new> files in F<pod/> go here.
17096837 121
9f7a72d0 122=head3 L<XXX>
e1165778 123
9f7a72d0 124XXX Description of the purpose of the new file here
e1165778 125
9f7a72d0 126=head2 Changes to Existing Documentation
17096837 127
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128XXX Changes which significantly change existing files in F<pod/> go here.
129However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics>
130section.
e1165778 131
9f7a72d0 132=head3 L<XXX>
d4238815 133
9f7a72d0 134=over 4
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136=item *
137
9f7a72d0 138XXX Description of the change here
e1165778 139
9f7a72d0 140=back
17096837 141
9f7a72d0 142=head1 Diagnostics
17096837 143
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144The following additions or changes have been made to diagnostic output,
145including warnings and fatal error messages. For the complete list of
146diagnostic messages, see L<perldiag>.
e1165778 147
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148XXX New or changed warnings emitted by the core's C<C> code go here. Also
149include any changes in L<perldiag> that reconcile it to the C<C> code.
68adb2b0 150
9f7a72d0 151[ Within each section, list entries as a =item entry ]
17096837 152
9f7a72d0 153=head2 New Diagnostics
3a5c9134 154
9f7a72d0 155XXX Newly added diagnostic messages go here
17096837 156
9f7a72d0 157=over 4
17096837 158
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159=item *
160
9f7a72d0 161XXX
17096837 162
9f7a72d0 163=back
e6f1cc4d 164
9f7a72d0 165=head2 Changes to Existing Diagnostics
e1165778 166
9f7a72d0 167XXX Changes (i.e. rewording) of diagnostic messages go here
17096837 168
9f7a72d0 169=over 4
17096837 170
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171=item *
172
9f7a72d0 173XXX
17096837 174
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175=back
176
9f7a72d0 177=head1 Utility Changes
e1165778 178
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179XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go
180here. Most of these are built within the directories F<utils> and F<x2p>.
e1165778 181
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182[ List utility changes as a =head3 entry for each utility and =item
183entries for each change
184Use L<XXX> with program names to get proper documentation linking. ]
e1165778 185
9f7a72d0 186=head3 L<XXX>
e1165778 187
9f7a72d0 188=over 4
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189
190=item *
191
9f7a72d0 192XXX
e1165778 193
9f7a72d0 194=back
e1165778 195
9f7a72d0 196=head1 Configuration and Compilation
e1165778 197
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198XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools
199go here. Any other changes to the Perl build process should be listed here.
200However, any platform-specific changes should be listed in the
201L</Platform Support> section, instead.
e1165778 202
9f7a72d0 203[ List changes as a =item entry ].
e1165778 204
9f7a72d0 205=over 4
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206
207=item *
208
9f7a72d0 209XXX
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210
211=back
212
9f7a72d0 213=head1 Testing
3a5c9134 214
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215XXX Any significant changes to the testing of a freshly built perl should be
216listed here. Changes which create B<new> files in F<t/> go here as do any
217large changes to the testing harness (e.g. when parallel testing was added).
218Changes to existing files in F<t/> aren't worth summarising, although the bugs
219that they represent may be covered elsewhere.
3a5c9134 220
9f7a72d0 221[ List each test improvement as a =item entry ]
3a5c9134 222
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223=over 4
224
225=item *
226
9f7a72d0 227XXX
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228
229=back
230
9f7a72d0 231=head1 Platform Support
3a5c9134 232
9f7a72d0 233XXX Any changes to platform support should be listed in the sections below.
3a5c9134 234
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235[ Within the sections, list each platform as a =item entry with specific
236changes as paragraphs below it. ]
3a5c9134 237
9f7a72d0 238=head2 New Platforms
3a5c9134 239
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240XXX List any platforms that this version of perl compiles on, that previous
241versions did not. These will either be enabled by new files in the F<hints/>
242directories, or new subdirectories and F<README> files at the top level of the
243source tree.
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245=over 4
246
9f7a72d0 247=item XXX-some-platform
3a5c9134 248
9f7a72d0 249XXX
51bed910 250
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251=back
252
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253=head2 Discontinued Platforms
254
255XXX List any platforms that this version of perl no longer compiles on.
3a5c9134 256
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257=over 4
258
9f7a72d0 259=item XXX-some-platform
3a5c9134 260
9f7a72d0 261XXX
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262
263=back
264
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265=head2 Platform-Specific Notes
266
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267XXX List any changes for specific platforms. This could include configuration
268and compilation changes or changes in portability/compatibility. However,
269changes within modules for platforms should generally be listed in the
270L</Modules and Pragmata> section.
3a5c9134 271
9f7a72d0 272=over 4
3a5c9134 273
9f7a72d0 274=item XXX-some-platform
fb3a2d89 275
9f7a72d0 276XXX
fb3a2d89 277
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278=back
279
280=head1 Internal Changes
281
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282XXX Changes which affect the interface available to C<XS> code go here.
283Other significant internal changes for future core maintainers should
284be noted as well.
3a5c9134 285
9f7a72d0 286[ List each test improvement as a =item entry ]
3a5c9134 287
9f7a72d0 288=over 4
3a5c9134 289
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290=item *
291
9f7a72d0 292XXX
c61b6d0f 293
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294=back
295
296=head1 Selected Bug Fixes
297
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298XXX Important bug fixes in the core language are summarised here.
299Bug fixes in files in F<ext/> and F<lib/> are best summarised in
300L</Modules and Pragmata>.
b373eab8 301
9f7a72d0 302[ List each fix as a =item entry ]
b373eab8 303
9f7a72d0 304=over 4
4c9d53d5 305
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306=item *
307
9f7a72d0 308XXX
0c7420e7 309
9f7a72d0 310=back
460c4bfb 311
9f7a72d0 312=head1 Known Problems
460c4bfb 313
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314XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any
315tests that had to be C<TODO>ed for the release would be noted here, unless
316they were specific to a particular platform (see below).
26de4ac8 317
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318This is a list of some significant unfixed bugs, which are regressions
319from either 5.XXX.XXX or 5.XXX.XXX.
26de4ac8 320
9f7a72d0 321[ List each fix as a =item entry ]
ab7fb400 322
9f7a72d0 323=over 4
ab7fb400 324
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325=item *
326
9f7a72d0 327XXX
836d5805 328
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329=back
330
9f7a72d0 331=head1 Obituary
3a5c9134 332
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333XXX If any significant core contributor has died, we've added a short obituary
334here.
b0c3724f 335
9f7a72d0 336=head1 Acknowledgements
b0c3724f 337
9f7a72d0 338XXX The list of people to thank goes here.
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339
340=head1 Reporting Bugs
341
342If you find what you think is a bug, you might check the articles
343recently posted to the comp.lang.perl.misc newsgroup and the perl
344bug database at http://rt.perl.org/perlbug/ . There may also be
345information at http://www.perl.org/ , the Perl Home Page.
346
347If you believe you have an unreported bug, please run the L<perlbug>
348program included with your release. Be sure to trim your bug down
349to a tiny but sufficient test case. Your bug report, along with the
350output of C<perl -V>, will be sent off to perlbug@perl.org to be
351analysed by the Perl porting team.
352
353If the bug you are reporting has security implications, which make it
354inappropriate to send to a publicly archived mailing list, then please send
355it to perl5-security-report@perl.org. This points to a closed subscription
356unarchived mailing list, which includes all the core committers, who be able
357to help assess the impact of issues, figure out a resolution, and help
358co-ordinate the release of patches to mitigate or fix the problem across all
359platforms on which Perl is supported. Please only use this address for
360security issues in the Perl core, not for modules independently
361distributed on CPAN.
362
363=head1 SEE ALSO
364
365The F<Changes> file for an explanation of how to view exhaustive details
366on what changed.
367
368The F<INSTALL> file for how to build Perl.
369
370The F<README> file for general stuff.
371
372The F<Artistic> and F<Copying> files for copyright information.
373
374=cut