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44691e6f AB |
1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
e14ac59b 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 v5.17.7 | |
e128ab2c | 9 | |
4eabcf70 | 10 | =head1 DESCRIPTION |
6db9054f | 11 | |
e14ac59b | 12 | This document describes differences between the 5.17.6 release and the 5.17.7 |
e08634c5 | 13 | release. |
6db9054f | 14 | |
e14ac59b RS |
15 | If you are upgrading from an earlier release such as 5.17.5, first read |
16 | L<perl5176delta>, which describes differences between 5.17.5 and 5.17.6. | |
17 | ||
18 | =head1 Notice | |
19 | ||
20 | XXX Any important notices here | |
5faa50e9 | 21 | |
5d8c8c8a | 22 | =head1 Core Enhancements |
4db91b87 | 23 | |
e078d89d | 24 | =head2 $&, $` and $' are no longer slow |
bde9e88d | 25 | |
e078d89d FC |
26 | These three infamous variables have been redeemed and no longer slow down |
27 | your program when used. Hence, the /p regular expression flag now does | |
28 | nothing. | |
bde9e88d | 29 | |
e14ac59b | 30 | =head1 Security |
86148eee | 31 | |
e14ac59b RS |
32 | XXX Any security-related notices go here. In particular, any security |
33 | vulnerabilities closed should be noted here rather than in the | |
34 | L</Selected Bug Fixes> section. | |
86148eee | 35 | |
e14ac59b | 36 | [ List each security issue as a =head2 entry ] |
9c5f5e7a | 37 | |
e14ac59b | 38 | =head1 Incompatible Changes |
90249f0a | 39 | |
3ef6ec90 TC |
40 | =head2 readline() with C<$/ = \N> now reads N characters, not N bytes |
41 | ||
42 | Previously, when reading from a stream with I/O layers such as | |
43 | C<encoding>, the readline() function, otherwise known as the C<< <> >> | |
44 | operator, would read I<N> bytes from the top-most layer. [perl #79960] | |
45 | ||
46 | Now, I<N> characters are read instead. | |
47 | ||
48 | There is no change in behaviour when reading from streams with no | |
49 | extra layers, since bytes map exactly to characters. | |
50 | ||
9a0708b2 | 51 | =head2 Lexical subroutine warnings have moved |
90249f0a | 52 | |
9a0708b2 FC |
53 | The warning about the use of an experimental feature emitted when lexical |
54 | subroutines (added in 5.17.4) are used now happens when the subroutine | |
55 | itself is declared, not when the "lexical_subs" feature is activated via | |
56 | C<use feature>. | |
4d7cd482 | 57 | |
9a0708b2 FC |
58 | This stops C<use feature ':all'> from warning, but causes |
59 | C<my sub foo; my sub bar> to warn twice. | |
4d7cd482 | 60 | |
e14ac59b | 61 | =head1 Deprecations |
4d7cd482 | 62 | |
e14ac59b RS |
63 | XXX Any deprecated features, syntax, modules etc. should be listed here. In |
64 | particular, deprecated modules should be listed here even if they are listed as | |
65 | an updated module in the L</Modules and Pragmata> section. | |
4d7cd482 | 66 | |
e14ac59b | 67 | [ List each deprecation as a =head2 entry ] |
86148eee | 68 | |
751611d4 FC |
69 | =head2 Lexical $_ is now deprecated |
70 | ||
71 | Since it was introduced in Perl 5.10, it has caused much confusion with no | |
72 | obvious solution: | |
73 | ||
74 | =over | |
75 | ||
76 | =item * | |
77 | ||
78 | Various modules (e.g., List::Util) expect callback routines to use the | |
79 | global $_. C<use List::Util 'first'; my $_; first { $_ == 1 } @list> does | |
80 | not work as one would expect. | |
81 | ||
82 | =item * | |
83 | ||
84 | A C<my $_> declaration earlier in the same file can cause confusing closure | |
85 | warnings. | |
86 | ||
87 | =item * | |
88 | ||
89 | The "_" subroutine prototype character allows called subroutines to access | |
90 | your lexical $_, so it is not really private after all. | |
91 | ||
92 | =item * | |
93 | ||
94 | Nevertheless, subroutines with a "(@)" prototype and methods cannot access | |
95 | the caller's lexical $_, unless they are written in XS. | |
96 | ||
97 | =item * | |
98 | ||
99 | But even XS routines cannot access a lexical $_ declared, not in the | |
100 | calling subroutine, but in an outer scope, iff that subroutine happened not | |
101 | to mention $_ or use any operators that default to $_. | |
102 | ||
103 | =back | |
104 | ||
61b19385 KW |
105 | =head2 Various XS-callable functions are now deprecated |
106 | ||
107 | The following functions will be removed from a future version of Perl, | |
108 | and should not be used. With participating C compilers (e.g., gcc), | |
109 | compiling any file that uses any of these will generate a warning. | |
110 | These were not intended for public use; there are equivalent, faster, | |
111 | macros for most of them. See L<perlapi/Character classes>: | |
112 | C<is_uni_ascii>, | |
113 | C<is_uni_ascii_lc>, | |
114 | C<is_uni_blank>, | |
115 | C<is_uni_blank_lc>, | |
116 | C<is_uni_cntrl>, | |
117 | C<is_uni_cntrl_lc>, | |
118 | C<is_uni_idfirst_lc>, | |
119 | C<is_uni_space>, | |
120 | C<is_uni_space_lc>, | |
121 | C<is_uni_xdigit>, | |
122 | C<is_uni_xdigit_lc>, | |
123 | C<is_utf8_ascii>, | |
124 | C<is_utf8_blank>, | |
125 | C<is_utf8_cntrl>, | |
126 | C<is_utf8_idcont>, | |
127 | C<is_utf8_idfirst>, | |
128 | C<is_utf8_perl_space>, | |
129 | C<is_utf8_perl_word>, | |
130 | C<is_utf8_posix_digit>, | |
131 | C<is_utf8_space>, | |
132 | C<is_utf8_xdigit>. | |
133 | C<is_utf8_xidcont>, | |
134 | C<is_utf8_xidfirst>, | |
135 | C<to_uni_lower_lc>, | |
136 | C<to_uni_title_lc>, | |
137 | and | |
138 | C<to_uni_upper_lc>. | |
139 | ||
e14ac59b | 140 | =head1 Performance Enhancements |
86148eee | 141 | |
e14ac59b RS |
142 | XXX Changes which enhance performance without changing behaviour go here. |
143 | There may well be none in a stable release. | |
86148eee | 144 | |
e14ac59b | 145 | [ List each enhancement as a =item entry ] |
1611045a | 146 | |
e14ac59b | 147 | =over 4 |
7a7a10c7 | 148 | |
e14ac59b | 149 | =item * |
7a7a10c7 | 150 | |
e078d89d FC |
151 | Perl has a new copy-on-write mechanism that avoids the need to copy the |
152 | internal string buffer when assigning from one scalar to another. This | |
153 | makes copying large strings appear much faster. Modifying one of the two | |
154 | (or more) strings after an assignment will force a copy internally. This | |
155 | makes it unnecessary to pass strings by reference for efficiency. | |
7a7a10c7 | 156 | |
e14ac59b | 157 | =back |
7a7a10c7 | 158 | |
e14ac59b | 159 | =head1 Modules and Pragmata |
7a7a10c7 | 160 | |
e14ac59b RS |
161 | XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> |
162 | go here. If Module::CoreList is updated, generate an initial draft of the | |
163 | following sections using F<Porting/corelist-perldelta.pl>, which prints stub | |
164 | entries to STDOUT. Results can be pasted in place of the '=head2' entries | |
165 | below. A paragraph summary for important changes should then be added by hand. | |
166 | In an ideal world, dual-life modules would have a F<Changes> file that could be | |
167 | cribbed. | |
7a7a10c7 | 168 | |
e14ac59b | 169 | [ Within each section, list entries as a =item entry ] |
7a7a10c7 | 170 | |
e14ac59b | 171 | =head2 New Modules and Pragmata |
45f11e9c | 172 | |
916c45d9 | 173 | =over 4 |
338a1057 SH |
174 | |
175 | =item * | |
176 | ||
e14ac59b | 177 | XXX |
0ace302a | 178 | |
e14ac59b | 179 | =back |
32209f41 | 180 | |
e14ac59b | 181 | =head2 Updated Modules and Pragmata |
c387386a | 182 | |
e14ac59b | 183 | =over 4 |
32209f41 | 184 | |
e14ac59b | 185 | =item * |
5faa50e9 | 186 | |
476161f6 NC |
187 | L<GDBM_File> has been upgraded from version 1.14 to 1.15. The undocumented |
188 | optional fifth parameter to C<TIEHASH> has been removed. This was intended | |
189 | to provide control of the callback used by C<gdbm*> functions in case of | |
190 | fatal errors (such as filesystem problems), but did not work (and could | |
191 | never have worked). No code on CPAN even attempted to use it. The callback | |
192 | is now always the previous default, C<croak>. Problems on some platforms with | |
193 | how the C<C> C<croak> function is called have also been resolved. | |
5faa50e9 | 194 | |
e14ac59b RS |
195 | =back |
196 | ||
197 | =head2 Removed Modules and Pragmata | |
4cc02608 | 198 | |
916c45d9 | 199 | =over 4 |
e7b92d54 SH |
200 | |
201 | =item * | |
202 | ||
e14ac59b | 203 | XXX |
11e375e0 | 204 | |
e14ac59b | 205 | =back |
11e375e0 | 206 | |
e14ac59b | 207 | =head1 Documentation |
11e375e0 | 208 | |
e14ac59b RS |
209 | XXX Changes to files in F<pod/> go here. Consider grouping entries by |
210 | file and be sure to link to the appropriate page, e.g. L<perlfunc>. | |
7b379596 | 211 | |
e14ac59b | 212 | =head2 New Documentation |
5c26a176 | 213 | |
e14ac59b | 214 | XXX Changes which create B<new> files in F<pod/> go here. |
5c26a176 | 215 | |
e14ac59b | 216 | =head3 L<XXX> |
cb077ed2 | 217 | |
e14ac59b | 218 | XXX Description of the purpose of the new file here |
11e375e0 | 219 | |
e14ac59b | 220 | =head2 Changes to Existing Documentation |
11e375e0 | 221 | |
e14ac59b RS |
222 | XXX Changes which significantly change existing files in F<pod/> go here. |
223 | However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> | |
224 | section. | |
225 | ||
243effed | 226 | =head3 L<perlapi/Character classes> |
11e375e0 | 227 | |
e14ac59b | 228 | =over 4 |
e498bd59 RS |
229 | |
230 | =item * | |
231 | ||
243effed KW |
232 | There are quite a few macros callable from XS modules that classify |
233 | characters into things like alphabetic, punctuation, etc. More of these | |
234 | are now documented, including ones which work on characters whose code | |
235 | points are outside the Latin-1 range. | |
cb077ed2 | 236 | |
5d8c8c8a | 237 | =back |
5f877a7f | 238 | |
e14ac59b RS |
239 | =head1 Diagnostics |
240 | ||
241 | The following additions or changes have been made to diagnostic output, | |
242 | including warnings and fatal error messages. For the complete list of | |
243 | diagnostic messages, see L<perldiag>. | |
1ea91bbe | 244 | |
e14ac59b RS |
245 | XXX New or changed warnings emitted by the core's C<C> code go here. Also |
246 | include any changes in L<perldiag> that reconcile it to the C<C> code. | |
247 | ||
248 | =head2 New Diagnostics | |
249 | ||
250 | XXX Newly added diagnostic messages go under here, separated into New Errors | |
251 | and New Warnings | |
252 | ||
253 | =head3 New Errors | |
5faa50e9 | 254 | |
5d8c8c8a | 255 | =over 4 |
1ea91bbe FR |
256 | |
257 | =item * | |
258 | ||
e14ac59b | 259 | XXX L<message|perldiag/"message"> |
5faa50e9 | 260 | |
916c45d9 | 261 | =back |
9c5f5e7a | 262 | |
e14ac59b | 263 | =head3 New Warnings |
4db91b87 | 264 | |
5d8c8c8a | 265 | =over 4 |
4db91b87 | 266 | |
e14ac59b | 267 | =item * |
4db91b87 | 268 | |
e14ac59b | 269 | XXX L<message|perldiag/"message"> |
4db91b87 | 270 | |
5d8c8c8a | 271 | =back |
5faa50e9 | 272 | |
e14ac59b RS |
273 | =head2 Changes to Existing Diagnostics |
274 | ||
275 | XXX Changes (i.e. rewording) of diagnostic messages go here | |
5faa50e9 | 276 | |
5d8c8c8a | 277 | =over 4 |
5faa50e9 | 278 | |
e14ac59b | 279 | =item * |
ddb1bef5 | 280 | |
e14ac59b | 281 | XXX Describe change here |
ddb1bef5 | 282 | |
e14ac59b | 283 | =back |
5faa50e9 | 284 | |
e14ac59b | 285 | =head1 Utility Changes |
5faa50e9 | 286 | |
e14ac59b RS |
287 | XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. |
288 | Most of these are built within the directories F<utils> and F<x2p>. | |
5faa50e9 | 289 | |
e14ac59b RS |
290 | [ List utility changes as a =head3 entry for each utility and =item |
291 | entries for each change | |
292 | Use L<XXX> with program names to get proper documentation linking. ] | |
293 | ||
294 | =head3 L<XXX> | |
5faa50e9 | 295 | |
5d8c8c8a | 296 | =over 4 |
5faa50e9 FR |
297 | |
298 | =item * | |
299 | ||
e14ac59b | 300 | XXX |
cb077ed2 | 301 | |
e14ac59b RS |
302 | =back |
303 | ||
304 | =head1 Configuration and Compilation | |
305 | ||
306 | XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools | |
307 | go here. Any other changes to the Perl build process should be listed here. | |
308 | However, any platform-specific changes should be listed in the | |
309 | L</Platform Support> section, instead. | |
cb077ed2 | 310 | |
e14ac59b RS |
311 | [ List changes as a =item entry ]. |
312 | ||
313 | =over 4 | |
90814a4e | 314 | |
5ce83ae9 DM |
315 | =item * |
316 | ||
e14ac59b | 317 | XXX |
5ce83ae9 | 318 | |
5d8c8c8a | 319 | =back |
31c15ce5 | 320 | |
e14ac59b RS |
321 | =head1 Testing |
322 | ||
323 | XXX Any significant changes to the testing of a freshly built perl should be | |
324 | listed here. Changes which create B<new> files in F<t/> go here as do any | |
325 | large changes to the testing harness (e.g. when parallel testing was added). | |
326 | Changes to existing files in F<t/> aren't worth summarizing, although the bugs | |
327 | that they represent may be covered elsewhere. | |
328 | ||
329 | [ List each test improvement as a =item entry ] | |
4db91b87 | 330 | |
5d8c8c8a | 331 | =over 4 |
4db91b87 FC |
332 | |
333 | =item * | |
334 | ||
e14ac59b | 335 | XXX |
11e375e0 | 336 | |
e14ac59b | 337 | =back |
11e375e0 | 338 | |
e14ac59b | 339 | =head1 Platform Support |
11e375e0 | 340 | |
e14ac59b | 341 | XXX Any changes to platform support should be listed in the sections below. |
11e375e0 | 342 | |
e14ac59b RS |
343 | [ Within the sections, list each platform as a =item entry with specific |
344 | changes as paragraphs below it. ] | |
11e375e0 | 345 | |
e14ac59b | 346 | =head2 New Platforms |
11e375e0 | 347 | |
e14ac59b RS |
348 | XXX List any platforms that this version of perl compiles on, that previous |
349 | versions did not. These will either be enabled by new files in the F<hints/> | |
350 | directories, or new subdirectories and F<README> files at the top level of the | |
351 | source tree. | |
11e375e0 | 352 | |
e14ac59b | 353 | =over 4 |
11e375e0 | 354 | |
e14ac59b | 355 | =item XXX-some-platform |
11e375e0 | 356 | |
e14ac59b | 357 | XXX |
11e375e0 | 358 | |
e14ac59b | 359 | =back |
11e375e0 | 360 | |
e14ac59b | 361 | =head2 Discontinued Platforms |
11e375e0 | 362 | |
e14ac59b | 363 | =over 4 |
11e375e0 | 364 | |
b6c36746 | 365 | =item BeOS |
11e375e0 | 366 | |
b6c36746 | 367 | Support for BeOS has been removed. |
11e375e0 | 368 | |
e14ac59b | 369 | =back |
11e375e0 | 370 | |
e14ac59b | 371 | =head2 Platform-Specific Notes |
11e375e0 | 372 | |
e14ac59b RS |
373 | XXX List any changes for specific platforms. This could include configuration |
374 | and compilation changes or changes in portability/compatibility. However, | |
375 | changes within modules for platforms should generally be listed in the | |
376 | L</Modules and Pragmata> section. | |
11e375e0 | 377 | |
e14ac59b | 378 | =over 4 |
11e375e0 | 379 | |
e14ac59b | 380 | =item XXX-some-platform |
11e375e0 | 381 | |
e14ac59b | 382 | XXX |
11e375e0 | 383 | |
e14ac59b | 384 | =back |
11e375e0 | 385 | |
e14ac59b | 386 | =head1 Internal Changes |
11e375e0 | 387 | |
e14ac59b RS |
388 | XXX Changes which affect the interface available to C<XS> code go here. Other |
389 | significant internal changes for future core maintainers should be noted as | |
390 | well. | |
11e375e0 | 391 | |
e14ac59b | 392 | [ List each change as a =item entry ] |
11e375e0 | 393 | |
e14ac59b | 394 | =over 4 |
11e375e0 FC |
395 | |
396 | =item * | |
397 | ||
463ea229 DM |
398 | SvUPGRADE() is no longer an expression. Originally this macro (and its |
399 | underlying function, sv_upgrade()) were documented as boolean, although | |
400 | in reality they always croaked on error and never returned false. In 2005 | |
401 | the documentation was updated to specify a void return value, but | |
402 | SvUPGRADE() was left always returning 1 for backwards compatibility. This | |
403 | has now been removed, and SvUPGRADE() is now a statement with no return | |
404 | value. | |
405 | ||
406 | So this is now a syntax error: | |
407 | ||
408 | if (!SvUPGRADE(sv)) { croak(...); } | |
409 | ||
410 | If you have code like that, simply replace it with | |
411 | ||
412 | SvUPGRADE(sv); | |
e14ac59b | 413 | |
8b877d20 DM |
414 | or to to avoid compiler warnings with older perls, possibly |
415 | ||
416 | (void)SvUPGRADE(sv); | |
417 | ||
e078d89d FC |
418 | =item * |
419 | ||
420 | Perl has a new copy-on-write mechanism that allows any SvPOK scalar to be | |
421 | upgraded to a copy-on-write scalar. A reference count on the string buffer | |
422 | is stored in the string buffer itself. | |
423 | ||
424 | This breaks a few XS modules by allowing copy-on-write scalars to go | |
425 | through code paths that never encountered them before. | |
426 | ||
427 | This behaviour can still be disabled by running F<Configure> with | |
428 | B<-Accflags=-DPERL_NO_COW>. This option will probably be removed in Perl | |
429 | 5.20. | |
430 | ||
431 | =item * | |
432 | ||
433 | Copy-on-write no longer uses the SvFAKE and SvREADONLY flags. Hence, | |
434 | SvREADONLY indicates a true read-only SV. | |
435 | ||
436 | Use the SvIsCOW macro (as before) to identify a copy-on-write scalar. | |
437 | ||
438 | =item * | |
439 | ||
440 | C<PL_sawampersand> is now a constant. The switch this variable provided | |
441 | (to enable/disable the pre-match copy depending on whether C<$&> had been | |
442 | seen) has been removed and replaced with copy-on-write, eliminating a few | |
443 | bugs. | |
444 | ||
445 | The previous behaviour can still be enabled by running F<Configure> with | |
446 | B<-Accflags=-DPERL_SAWAMPERSAND>. | |
447 | ||
e14ac59b RS |
448 | =back |
449 | ||
450 | =head1 Selected Bug Fixes | |
451 | ||
452 | XXX Important bug fixes in the core language are summarized here. Bug fixes in | |
453 | files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. | |
454 | ||
455 | [ List each fix as a =item entry ] | |
456 | ||
457 | =over 4 | |
11e375e0 FC |
458 | |
459 | =item * | |
460 | ||
8b998a90 FC |
461 | C<sort {undef} ...> under fatal warnings no longer crashes. It started |
462 | crashing in Perl 5.16. | |
e14ac59b | 463 | |
fdea6f98 FC |
464 | =item * |
465 | ||
466 | Stashes blessed into each other | |
467 | (C<bless \%Foo::, 'Bar'; bless \%Bar::, 'Foo'>) no longer result in double | |
468 | frees. This bug started happening in Perl 5.16. | |
469 | ||
7cf3104f FC |
470 | =item * |
471 | ||
472 | Numerous memory leaks have been fixed, mostly involving fatal warnings and | |
473 | syntax errors. | |
474 | ||
966f0fdb FC |
475 | =item * |
476 | ||
477 | Lexical constants (C<my sub answer () { 42 }>) no longer cause double | |
478 | frees. | |
479 | ||
edc013cb FC |
480 | =item * |
481 | ||
482 | Constant subroutine redefinition warns by default, but lexical constants | |
483 | were accidentally exempt from default warnings. This has been corrected. | |
484 | ||
7b5dd02a FC |
485 | =item * |
486 | ||
487 | Some failed regular expression matches such as C<'f' =~ /../g> were not | |
488 | resetting C<pos>. Also, "match-once" patterns (C<m?...?g>) failed to reset | |
489 | it, too, when invoked a second time [perl #23180]. | |
490 | ||
e078d89d FC |
491 | =item * |
492 | ||
493 | Accessing C<$&> after a pattern match now works if it had not been seen | |
494 | before the match. I.e., this applies to C<${'&'}> (under C<no strict>) and | |
495 | C<eval '$&'>. The same applies to C<$'> and C<$`> [perl #4289]. | |
496 | ||
a0e45bac FC |
497 | =item * |
498 | ||
07a22236 | 499 | Several bugs involving C<local *ISA> and C<local *Foo::> causing stale |
a0e45bac FC |
500 | MRO caches have been fixed. |
501 | ||
139353f8 FC |
502 | =item * |
503 | ||
504 | Defining a subroutine when its typeglob has been aliased no longer results | |
505 | in stale method caches. This bug was introduced in Perl 5.10. | |
506 | ||
ba535ffe FC |
507 | =item * |
508 | ||
509 | Localising a typeglob containing a subroutine when the typeglob's package | |
510 | has been deleted from its parent stash no longer produces an error. This | |
511 | bug was introduced in Perl 5.14. | |
512 | ||
52c09c59 FC |
513 | =item * |
514 | ||
515 | Under some circumstances, C<local *method=...> would fail to reset method | |
516 | caches upon scope exit. | |
517 | ||
12b847a2 FC |
518 | =item * |
519 | ||
520 | C</[.foo.]/> is no longer an error, but produces a warning (as before) and | |
521 | is treated as C</[.fo]/> [perl #115818]. | |
522 | ||
e14ac59b RS |
523 | =back |
524 | ||
525 | =head1 Known Problems | |
526 | ||
527 | XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any | |
528 | tests that had to be C<TODO>ed for the release would be noted here. Unfixed | |
529 | platform specific bugs also go here. | |
530 | ||
531 | [ List each fix as a =item entry ] | |
532 | ||
533 | =over 4 | |
2d9cd31f | 534 | |
c9ac5216 FC |
535 | =item * |
536 | ||
e14ac59b | 537 | XXX |
c9ac5216 | 538 | |
5d8c8c8a | 539 | =back |
4db91b87 | 540 | |
e14ac59b RS |
541 | =head1 Obituary |
542 | ||
543 | XXX If any significant core contributor has died, we've added a short obituary | |
544 | here. | |
545 | ||
916c45d9 | 546 | =head1 Acknowledgements |
05bee12a | 547 | |
e14ac59b RS |
548 | XXX Generate this with: |
549 | ||
550 | perl Porting/acknowledgements.pl v5.17.6..HEAD | |
29cf780c | 551 | |
44691e6f AB |
552 | =head1 Reporting Bugs |
553 | ||
e08634c5 SH |
554 | If you find what you think is a bug, you might check the articles recently |
555 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at | |
556 | http://rt.perl.org/perlbug/ . There may also be information at | |
557 | http://www.perl.org/ , the Perl Home Page. | |
44691e6f | 558 | |
e08634c5 SH |
559 | If you believe you have an unreported bug, please run the L<perlbug> program |
560 | included with your release. Be sure to trim your bug down to a tiny but | |
561 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
562 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. | |
44691e6f AB |
563 | |
564 | If the bug you are reporting has security implications, which make it | |
e08634c5 SH |
565 | inappropriate to send to a publicly archived mailing list, then please send it |
566 | to perl5-security-report@perl.org. This points to a closed subscription | |
567 | unarchived mailing list, which includes all the core committers, who will be | |
568 | able to help assess the impact of issues, figure out a resolution, and help | |
f9001595 | 569 | co-ordinate the release of patches to mitigate or fix the problem across all |
e08634c5 SH |
570 | platforms on which Perl is supported. Please only use this address for |
571 | security issues in the Perl core, not for modules independently distributed on | |
572 | CPAN. | |
44691e6f AB |
573 | |
574 | =head1 SEE ALSO | |
575 | ||
e08634c5 SH |
576 | The F<Changes> file for an explanation of how to view exhaustive details on |
577 | what changed. | |
44691e6f AB |
578 | |
579 | The F<INSTALL> file for how to build Perl. | |
580 | ||
581 | The F<README> file for general stuff. | |
582 | ||
583 | The F<Artistic> and F<Copying> files for copyright information. | |
584 | ||
585 | =cut |