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44691e6f AB |
1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
86372193 A |
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 v5.21.6 | |
c68523cb | 9 | |
238894db | 10 | =head1 DESCRIPTION |
c68523cb | 11 | |
86372193 | 12 | This document describes differences between the 5.21.5 release and the 5.21.6 |
238894db | 13 | release. |
c68523cb | 14 | |
86372193 A |
15 | If you are upgrading from an earlier release such as 5.21.4, first read |
16 | L<perl5215delta>, which describes differences between 5.21.4 and 5.21.5. | |
8435afd1 | 17 | |
86372193 | 18 | =head1 Notice |
5cfa0642 | 19 | |
86372193 | 20 | XXX Any important notices here |
4cad5dc8 | 21 | |
86372193 | 22 | =head1 Core Enhancements |
4cad5dc8 | 23 | |
86372193 A |
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. | |
a5591204 | 27 | |
86372193 | 28 | [ List each enhancement as a =head2 entry ] |
a5591204 | 29 | |
518159a1 TC |
30 | =head2 List form of pipe open implemented for Win32 |
31 | ||
32 | The list form of pipe: | |
33 | ||
34 | open my $fh, "-|", "program", @arguments; | |
35 | ||
36 | is now implemented on Win32. It has the same limitations as C<system | |
37 | LIST> on Win32, since the Win32 API doesn't accept program arguments | |
38 | as a list. | |
39 | ||
fe609065 FC |
40 | =head2 Assignment to list repetition |
41 | ||
42 | C<(...) x ...> can now be used within a list that is assigned to, as long | |
43 | as the left-hand side is a valid lvalue. This allows C<(undef,undef,$foo) | |
44 | = that_function()> to be written as C<((undef)x2, $foo) = that_function()>. | |
45 | ||
86372193 | 46 | =head1 Security |
a5591204 | 47 | |
86372193 A |
48 | XXX Any security-related notices go here. In particular, any security |
49 | vulnerabilities closed should be noted here rather than in the | |
50 | L</Selected Bug Fixes> section. | |
a5591204 | 51 | |
86372193 | 52 | [ List each security issue as a =head2 entry ] |
a5591204 | 53 | |
86372193 | 54 | =head1 Incompatible Changes |
a5591204 | 55 | |
86372193 | 56 | XXX For a release on a stable branch, this section aspires to be: |
a5591204 | 57 | |
86372193 A |
58 | There are no changes intentionally incompatible with 5.XXX.XXX |
59 | If any exist, they are bugs, and we request that you submit a | |
60 | report. See L</Reporting Bugs> below. | |
b15c1b56 | 61 | |
86372193 | 62 | [ List each incompatible change as a =head2 entry ] |
b15c1b56 | 63 | |
86372193 | 64 | =head1 Deprecations |
bb8c7e27 | 65 | |
86372193 | 66 | XXX Any deprecated features, syntax, modules etc. should be listed here. |
bb8c7e27 | 67 | |
86372193 | 68 | =head2 Module removals |
bb8c7e27 | 69 | |
86372193 | 70 | XXX Remove this section if inapplicable. |
9a88d663 | 71 | |
86372193 A |
72 | The following modules will be removed from the core distribution in a |
73 | future release, and will at that time need to be installed from CPAN. | |
74 | Distributions on CPAN which require these modules will need to list them as | |
75 | prerequisites. | |
9a88d663 | 76 | |
86372193 A |
77 | The core versions of these modules will now issue C<"deprecated">-category |
78 | warnings to alert you to this fact. To silence these deprecation warnings, | |
79 | install the modules in question from CPAN. | |
5cfa0642 | 80 | |
86372193 A |
81 | Note that these are (with rare exceptions) fine modules that you are encouraged |
82 | to continue to use. Their disinclusion from core primarily hinges on their | |
83 | necessity to bootstrapping a fully functional, CPAN-capable Perl installation, | |
84 | not usually on concerns over their design. | |
ba474e87 | 85 | |
86372193 | 86 | =over |
8435afd1 | 87 | |
86372193 | 88 | =item XXX |
d0ab07ee | 89 | |
86372193 A |
90 | XXX Note that deprecated modules should be listed here even if they are listed |
91 | as an updated module in the L</Modules and Pragmata> section. | |
cc4d09e1 | 92 | |
86372193 | 93 | =back |
cc4d09e1 | 94 | |
86372193 | 95 | [ List each other deprecation as a =head2 entry ] |
8435afd1 | 96 | |
4475d0d2 KW |
97 | =head2 Use of non-graphic characters in single-character variable names |
98 | ||
99 | The syntax for single-character variable names is more lenient than | |
100 | for longer variable names, allowing the one-character name to be a | |
101 | punctuation character or even invisible (a non-graphic). Perl v5.20 | |
102 | deprecated the ASCII-range controls as such a name. Now, all | |
103 | non-graphic characters that formerly were allowed are deprecated. | |
104 | The practical effect of this occurs only when not under C<S<"use | |
105 | utf8">>, and affects just the C1 controls (code points 0x80 through | |
106 | 0xFF), NO-BREAK SPACE, and SOFT HYPHEN. | |
107 | ||
8c8d6154 | 108 | =head1 Performance Enhancements |
5cfa0642 | 109 | |
86372193 A |
110 | XXX Changes which enhance performance without changing behaviour go here. |
111 | There may well be none in a stable release. | |
5cfa0642 | 112 | |
86372193 | 113 | [ List each enhancement as a =item entry ] |
8435afd1 | 114 | |
86372193 | 115 | =over 4 |
5cfa0642 | 116 | |
5b306eef DD |
117 | =item * |
118 | ||
25a8e2be FC |
119 | C<(...)x1>, C<("constant")x0> and C<($scalar)x0> are now optimised in list |
120 | context. If the right-hand argument is a constant 1, the repetition | |
121 | operator disappears. If the right-hand argument is a constant 0, the whole | |
122 | expressions is optimised to the empty list, so long as the left-hand | |
123 | argument is a simple scalar or constant. C<(foo())x0> is not optimised. | |
5b306eef | 124 | |
86372193 | 125 | =back |
357205d5 | 126 | |
86372193 | 127 | =head1 Modules and Pragmata |
357205d5 | 128 | |
86372193 A |
129 | XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> |
130 | go here. If Module::CoreList is updated, generate an initial draft of the | |
131 | following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary | |
132 | for important changes should then be added by hand. In an ideal world, | |
133 | dual-life modules would have a F<Changes> file that could be cribbed. | |
f704f251 | 134 | |
86372193 | 135 | [ Within each section, list entries as a =item entry ] |
f704f251 | 136 | |
86372193 | 137 | =head2 New Modules and Pragmata |
0cb3abac | 138 | |
86372193 | 139 | =over 4 |
0cb3abac | 140 | |
deec1830 FC |
141 | =item * |
142 | ||
86372193 | 143 | XXX |
deec1830 | 144 | |
8c8d6154 | 145 | =back |
d0ab07ee | 146 | |
8c8d6154 | 147 | =head2 Updated Modules and Pragmata |
d99849ae | 148 | |
39c4a6cf | 149 | =over 4 |
d99849ae | 150 | |
ff433f2d PM |
151 | =item * |
152 | ||
bab69578 TC |
153 | L<IO::Socket> has been upgraded from version 1.37 to 1.38. |
154 | ||
155 | Document the limitations of the isconnected() method. [perl #123096] | |
cbfcbc14 | 156 | |
bb6a367a DD |
157 | =item * |
158 | ||
159 | L<DynaLoader> has been upgraded from version 1.27 to 1.28. | |
160 | ||
86372193 | 161 | =back |
f348c3d8 | 162 | |
86372193 | 163 | =head2 Removed Modules and Pragmata |
f348c3d8 | 164 | |
86372193 | 165 | =over 4 |
f348c3d8 A |
166 | |
167 | =item * | |
168 | ||
86372193 | 169 | XXX |
f348c3d8 | 170 | |
86372193 | 171 | =back |
7635ad4d | 172 | |
86372193 | 173 | =head1 Documentation |
7635ad4d | 174 | |
86372193 A |
175 | XXX Changes to files in F<pod/> go here. Consider grouping entries by |
176 | file and be sure to link to the appropriate page, e.g. L<perlfunc>. | |
7635ad4d | 177 | |
86372193 | 178 | =head2 New Documentation |
f348c3d8 | 179 | |
86372193 | 180 | XXX Changes which create B<new> files in F<pod/> go here. |
f348c3d8 | 181 | |
86372193 | 182 | =head3 L<XXX> |
f4eedc6b | 183 | |
86372193 | 184 | XXX Description of the purpose of the new file here |
f4eedc6b | 185 | |
86372193 | 186 | =head2 Changes to Existing Documentation |
f4eedc6b | 187 | |
86372193 A |
188 | XXX Changes which significantly change existing files in F<pod/> go here. |
189 | However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> | |
190 | section. | |
f348c3d8 | 191 | |
42327f06 | 192 | =head3 L<perldata/Identifier parsing> |
f348c3d8 | 193 | |
86372193 | 194 | =over 4 |
f348c3d8 A |
195 | |
196 | =item * | |
197 | ||
42327f06 KW |
198 | The syntax of single-character variable names has been brought |
199 | up-to-date and more fully explained. | |
f348c3d8 | 200 | |
86372193 | 201 | =back |
f348c3d8 | 202 | |
86372193 | 203 | =head1 Diagnostics |
f348c3d8 | 204 | |
86372193 A |
205 | The following additions or changes have been made to diagnostic output, |
206 | including warnings and fatal error messages. For the complete list of | |
207 | diagnostic messages, see L<perldiag>. | |
f348c3d8 | 208 | |
86372193 A |
209 | XXX New or changed warnings emitted by the core's C<C> code go here. Also |
210 | include any changes in L<perldiag> that reconcile it to the C<C> code. | |
f348c3d8 | 211 | |
86372193 | 212 | =head2 New Diagnostics |
f348c3d8 | 213 | |
86372193 A |
214 | XXX Newly added diagnostic messages go under here, separated into New Errors |
215 | and New Warnings | |
f348c3d8 | 216 | |
86372193 | 217 | =head3 New Errors |
84d03adf | 218 | |
86372193 | 219 | =over 4 |
ff433f2d | 220 | |
4cd408ba TC |
221 | =item * |
222 | ||
86372193 | 223 | XXX L<message|perldiag/"message"> |
f348c3d8 | 224 | |
86372193 | 225 | =back |
f348c3d8 | 226 | |
86372193 | 227 | =head3 New Warnings |
f4eedc6b | 228 | |
86372193 | 229 | =over 4 |
f4eedc6b DD |
230 | |
231 | =item * | |
232 | ||
4475d0d2 | 233 | L<Use of literal non-graphic characters in variable names is deprecated|perldiag/"Use of literal non-graphic characters in variable names is deprecated"> |
f348c3d8 | 234 | |
ab0b796c KW |
235 | =item * |
236 | ||
8c6180a9 KW |
237 | A new C<locale> warning category has been created, with the following warning |
238 | messages currently in it: | |
239 | ||
240 | =over 4 | |
241 | ||
242 | =item * | |
243 | ||
244 | L<Locale '%s' may not work well.%s|perldiag/Locale '%s' may not work well.%s> | |
245 | ||
246 | =item * | |
247 | ||
ab0b796c KW |
248 | L<Can't do %s("%s") on non-UTF-8 locale; resolved to "%s".|perldiag/Can't do %s("%s") on non-UTF-8 locale; resolved to "%s".> |
249 | ||
86372193 | 250 | =back |
0561e60b | 251 | |
8c6180a9 KW |
252 | =back |
253 | ||
86372193 | 254 | =head2 Changes to Existing Diagnostics |
0561e60b | 255 | |
86372193 | 256 | XXX Changes (i.e. rewording) of diagnostic messages go here |
0561e60b | 257 | |
86372193 | 258 | =over 4 |
4cd408ba | 259 | |
f348c3d8 A |
260 | =item * |
261 | ||
4a328228 FC |
262 | L<Quantifier unexpected on zero-length expression in regex m/%s/|perldiag/"Quantifier unexpected on zero-length expression in regex m/%s/">. |
263 | ||
264 | This message has had the S<"<-- HERE"> marker removed, as it was always | |
265 | placed at the end of the regular expression, regardless of where the | |
266 | problem actually occurred. [perl #122680] | |
4cd408ba | 267 | |
86372193 | 268 | =back |
40a81b59 | 269 | |
86372193 | 270 | =head1 Utility Changes |
f348c3d8 | 271 | |
86372193 A |
272 | XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. |
273 | Most of these are built within the directory F<utils>. | |
f348c3d8 | 274 | |
86372193 A |
275 | [ List utility changes as a =head2 entry for each utility and =item |
276 | entries for each change | |
277 | Use L<XXX> with program names to get proper documentation linking. ] | |
f348c3d8 | 278 | |
86372193 | 279 | =head2 L<XXX> |
f348c3d8 | 280 | |
86372193 | 281 | =over 4 |
f348c3d8 A |
282 | |
283 | =item * | |
284 | ||
86372193 | 285 | XXX |
40a81b59 | 286 | |
13900f93 | 287 | =back |
aac7f82f | 288 | |
86372193 | 289 | =head1 Configuration and Compilation |
2a395b86 | 290 | |
86372193 A |
291 | XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools |
292 | go here. Any other changes to the Perl build process should be listed here. | |
293 | However, any platform-specific changes should be listed in the | |
294 | L</Platform Support> section, instead. | |
8435afd1 | 295 | |
86372193 | 296 | [ List changes as a =item entry ]. |
8435afd1 SH |
297 | |
298 | =over 4 | |
2a395b86 | 299 | |
12d22d1f JK |
300 | =item * |
301 | ||
c517e197 | 302 | F<Configure> with C<-Dmksymlinks> should now be faster. [perl #122002] |
12d22d1f | 303 | |
2a395b86 PM |
304 | =back |
305 | ||
86372193 | 306 | =head1 Testing |
2a395b86 | 307 | |
86372193 A |
308 | XXX Any significant changes to the testing of a freshly built perl should be |
309 | listed here. Changes which create B<new> files in F<t/> go here as do any | |
310 | large changes to the testing harness (e.g. when parallel testing was added). | |
311 | Changes to existing files in F<t/> aren't worth summarizing, although the bugs | |
312 | that they represent may be covered elsewhere. | |
2a395b86 | 313 | |
86372193 | 314 | [ List each test improvement as a =item entry ] |
5cfa0642 | 315 | |
8c8d6154 | 316 | =over 4 |
2a395b86 PM |
317 | |
318 | =item * | |
319 | ||
86372193 | 320 | XXX |
bb8c7e27 | 321 | |
86372193 | 322 | =back |
bb8c7e27 | 323 | |
86372193 | 324 | =head1 Platform Support |
bb8c7e27 | 325 | |
86372193 | 326 | XXX Any changes to platform support should be listed in the sections below. |
bb8c7e27 | 327 | |
86372193 A |
328 | [ Within the sections, list each platform as a =item entry with specific |
329 | changes as paragraphs below it. ] | |
2a395b86 | 330 | |
86372193 | 331 | =head2 New Platforms |
6d9b7c7c | 332 | |
86372193 A |
333 | XXX List any platforms that this version of perl compiles on, that previous |
334 | versions did not. These will either be enabled by new files in the F<hints/> | |
335 | directories, or new subdirectories and F<README> files at the top level of the | |
336 | source tree. | |
363d3025 | 337 | |
8c8d6154 | 338 | =over 4 |
334464b3 | 339 | |
86372193 | 340 | =item XXX-some-platform |
334464b3 | 341 | |
86372193 | 342 | XXX |
ef5a9509 | 343 | |
363d3025 FC |
344 | =back |
345 | ||
86372193 A |
346 | =head2 Discontinued Platforms |
347 | ||
348 | XXX List any platforms that this version of perl no longer compiles on. | |
d72cd2eb | 349 | |
0346c3a9 | 350 | =over 4 |
375f5f06 | 351 | |
86372193 | 352 | =item XXX-some-platform |
2884baee | 353 | |
86372193 | 354 | XXX |
6f1a844b | 355 | |
8c8d6154 | 356 | =back |
549ea8d4 | 357 | |
8c8d6154 | 358 | =head2 Platform-Specific Notes |
aa292ef2 | 359 | |
86372193 A |
360 | XXX List any changes for specific platforms. This could include configuration |
361 | and compilation changes or changes in portability/compatibility. However, | |
362 | changes within modules for platforms should generally be listed in the | |
363 | L</Modules and Pragmata> section. | |
364 | ||
8c8d6154 | 365 | =over 4 |
739e9bee | 366 | |
86372193 | 367 | =item XXX-some-platform |
739e9bee | 368 | |
86372193 | 369 | XXX |
b23b2fdb | 370 | |
8c8d6154 | 371 | =back |
b23b2fdb | 372 | |
83b69bfd DD |
373 | =head3 Win32 |
374 | ||
375 | =over 4 | |
376 | ||
377 | =item * | |
378 | ||
379 | In the experimental C<:win32> layer, a crash in C<open> was fixed. Also | |
380 | opening C</dev/null>, which works the Win32 Perl's normal C<:unix> layer, was | |
381 | implemented for C<:win32>. | |
382 | L<[perl #122224]|https://rt.perl.org/Ticket/Display.html?id=122224> | |
383 | ||
13adb056 SH |
384 | =item * |
385 | ||
386 | A new makefile option, C<USE_LONG_DOUBLE>, has been added to the Windows | |
387 | dmake makefile for gcc builds only. Set this to "define" if you want perl to | |
388 | use long doubles to give more accuracy and range for floating point numbers. | |
389 | ||
83b69bfd DD |
390 | =back |
391 | ||
8c8d6154 | 392 | =head1 Internal Changes |
7d15b1a8 | 393 | |
86372193 A |
394 | XXX Changes which affect the interface available to C<XS> code go here. Other |
395 | significant internal changes for future core maintainers should be noted as | |
396 | well. | |
bbca64cf | 397 | |
86372193 | 398 | [ List each change as a =item entry ] |
6ff8f256 | 399 | |
86372193 | 400 | =over 4 |
28482d6c | 401 | |
28a42920 A |
402 | =item * |
403 | ||
f8d5a522 DD |
404 | C<screaminstr> has been removed. Although marked as public API, it is |
405 | undocumented and has no usage in modern perl versions on CPAN Grep. Calling it | |
406 | has been fatal since 5.17.0. | |
28a42920 | 407 | |
d109137e FC |
408 | =item * |
409 | ||
76acbf4f FC |
410 | C<newDEFSVOP>, C<block_start>, C<block_end> and C<intro_my> have been added |
411 | to the API. | |
d109137e | 412 | |
cff8e04e FC |
413 | =item * |
414 | ||
415 | The internal C<convert> function in F<op.c> has been renamed | |
416 | C<op_convert_list> and added to the API. | |
417 | ||
8c8d6154 | 418 | =back |
6ff8f256 | 419 | |
8c8d6154 | 420 | =head1 Selected Bug Fixes |
80cc3290 | 421 | |
86372193 A |
422 | XXX Important bug fixes in the core language are summarized here. Bug fixes in |
423 | files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. | |
13dd5671 | 424 | |
86372193 | 425 | [ List each fix as a =item entry ] |
bdab7676 | 426 | |
86372193 | 427 | =over 4 |
db98db4e | 428 | |
8818afe8 TC |
429 | =item * |
430 | ||
2ad9844a TC |
431 | fchmod() and futimes() now set C<$!> when they fail due to being |
432 | passed a closed file handle. [perl #122703] | |
bb8c7e27 | 433 | |
9ee757be KW |
434 | =item * |
435 | ||
436 | Perl now comes with a corrected Unicode 7.0 for the erratum issued on | |
437 | October 21, 2014 (see L<http://www.unicode.org/errata/#current_errata>), | |
438 | dealing with glyph shaping in Arabic. | |
439 | ||
c93d2ba1 TC |
440 | =item * |
441 | ||
442 | op_free() no longer crashes due to a stack overflow when freeing a | |
443 | deeply recursive op tree. [perl #108276] | |
444 | ||
53795ef8 FC |
445 | =item * |
446 | ||
9d22ccf6 TC |
447 | scalarvoid() would crash due to a stack overflow when processing a |
448 | deeply recursive op tree. [perl #108276] | |
449 | ||
450 | =item * | |
451 | ||
53795ef8 FC |
452 | In Perl 5.20.0, C<$^N> accidentally had the internal UTF8 flag turned off |
453 | if accessed from a code block within a regular expression, effectively | |
454 | UTF8-encoding the value. This has been fixed. [perl #123135] | |
455 | ||
b7cd8332 FC |
456 | =item * |
457 | ||
458 | A failed C<semctl> call no longer overwrites existing items on the stack, | |
459 | causing C<(semctl(-1,0,0,0))[0]> to give an "uninitialized" warning. | |
460 | ||
480961b6 FC |
461 | =item * |
462 | ||
463 | C<else{foo()}> with no space before C<foo> is now better at assigning the | |
464 | right line number to that statement. [perl #122695] | |
465 | ||
94c9bf90 FC |
466 | =item * |
467 | ||
468 | Sometimes the assignment in C<@array = split> gets optimised and C<split> | |
469 | itself writes directly to the array. This caused a bug, preventing this | |
470 | assignment from being used in lvalue context. So | |
471 | C<(@a=split//,"foo")=bar()> was an error. (This bug probably goes back to | |
472 | Perl 3, when the optimisation was added.) This optimisation, and the bug, | |
473 | started to happen in more cases in 5.21.5. It has now been fixed. | |
474 | [perl #123057] | |
475 | ||
8af808bf FC |
476 | =item * |
477 | ||
478 | When argument lists that fail the checks installed by subroutine | |
479 | signatures, the resulting error messages now give the file and line number | |
480 | of the caller, not of the called subroutine. [perl #121374] | |
481 | ||
fdcaecb7 FC |
482 | =item * |
483 | ||
484 | Flip-flop operators (C<..> and C<...> in scalar context) used to maintain | |
485 | a separate state for each recursion level (the number of times the | |
486 | enclosing sub was called recursively), contrary to the documentation. Now | |
487 | each closure has one internal state for each flip-flop. [perl #122829] | |
488 | ||
2af7c6b6 FC |
489 | =item * |
490 | ||
491 | C<use>, C<no>, statement labels, special blocks (C<BEGIN>) and pod are now | |
492 | permitted as the first thing in a C<map> or C<grep> block, the block after | |
493 | C<print> or C<say> (or other functions) returning a handle, and within | |
494 | C<${...}>, C<@{...}>, etc. [perl #122782] | |
495 | ||
86372193 | 496 | =back |
bb8c7e27 | 497 | |
86372193 | 498 | =head1 Known Problems |
bb8c7e27 | 499 | |
86372193 A |
500 | XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any |
501 | tests that had to be C<TODO>ed for the release would be noted here. Unfixed | |
502 | platform specific bugs also go here. | |
bb8c7e27 | 503 | |
86372193 | 504 | [ List each fix as a =item entry ] |
bb8c7e27 | 505 | |
86372193 | 506 | =over 4 |
bb8c7e27 | 507 | |
74f9f9ed A |
508 | =item * |
509 | ||
eacbb379 DD |
510 | Starting in 5.21.6, accessing L<perlapi/CvPADLIST> in an XSUB is forbidden. |
511 | CvPADLIST has be reused for a different internal purpose for XSUBs. Guard all | |
512 | CvPADLIST expressions with C<CvISXSUB()> if your code doesn't already block | |
513 | XSUB CV*s from going through optree CV* expecting code. | |
28a42920 | 514 | |
86372193 | 515 | =back |
28a42920 | 516 | |
86372193 | 517 | =head1 Errata From Previous Releases |
28a42920 | 518 | |
86372193 | 519 | =over 4 |
28a42920 A |
520 | |
521 | =item * | |
522 | ||
857f4fb1 FC |
523 | Due to a mistake in the string-copying logic, copying the value of a state |
524 | variable could instead steal the value and undefine the variable. This | |
525 | bug, introduced in 5.20, would happen mostly for long strings (1250 chars | |
526 | or more), but could happen for any strings under builds with copy-on-write | |
527 | disabled. [perl #123029] | |
528 | ||
529 | This bug was actually fixed in 5.21.5, but it was not until after that | |
530 | release that this bug, and the fact that it had been fixed, were | |
531 | discovered. | |
28a42920 | 532 | |
8c8d6154 | 533 | =back |
3a085d00 | 534 | |
86372193 | 535 | =head1 Obituary |
01d42a22 | 536 | |
86372193 A |
537 | XXX If any significant core contributor has died, we've added a short obituary |
538 | here. | |
01d42a22 | 539 | |
86372193 | 540 | =head1 Acknowledgements |
01d42a22 | 541 | |
86372193 | 542 | XXX Generate this with: |
01d42a22 | 543 | |
86372193 | 544 | perl Porting/acknowledgements.pl v5.21.5..HEAD |
f5b73711 | 545 | |
44691e6f AB |
546 | =head1 Reporting Bugs |
547 | ||
e08634c5 SH |
548 | If you find what you think is a bug, you might check the articles recently |
549 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at | |
238894db | 550 | https://rt.perl.org/ . There may also be information at |
7ef8b31d | 551 | http://www.perl.org/ , the Perl Home Page. |
44691e6f | 552 | |
e08634c5 SH |
553 | If you believe you have an unreported bug, please run the L<perlbug> program |
554 | included with your release. Be sure to trim your bug down to a tiny but | |
555 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
556 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. | |
44691e6f AB |
557 | |
558 | If the bug you are reporting has security implications, which make it | |
e08634c5 SH |
559 | inappropriate to send to a publicly archived mailing list, then please send it |
560 | to perl5-security-report@perl.org. This points to a closed subscription | |
561 | unarchived mailing list, which includes all the core committers, who will be | |
562 | able to help assess the impact of issues, figure out a resolution, and help | |
f9001595 | 563 | co-ordinate the release of patches to mitigate or fix the problem across all |
e08634c5 SH |
564 | platforms on which Perl is supported. Please only use this address for |
565 | security issues in the Perl core, not for modules independently distributed on | |
566 | CPAN. | |
44691e6f AB |
567 | |
568 | =head1 SEE ALSO | |
569 | ||
e08634c5 SH |
570 | The F<Changes> file for an explanation of how to view exhaustive details on |
571 | what changed. | |
44691e6f AB |
572 | |
573 | The F<INSTALL> file for how to build Perl. | |
574 | ||
575 | The F<README> file for general stuff. | |
576 | ||
577 | The F<Artistic> and F<Copying> files for copyright information. | |
578 | ||
579 | =cut |