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1=encoding utf8
2
249950d7 3=for comment
c0f37554 4This has been completed up to 0aae26c14, except for:
10c62b23 5803e389 rurban CYG17 utf8 paths
ff4ff6f3 6d9298c1 rurban mymalloc isn't thread safe
249950d7 7
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8=head1 NAME
9
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10[ this is a template for a new perldelta file. Any text flagged as
11XXX needs to be processed before release. ]
ad32999b 12
c1e74734 13perldelta - what is new for perl v5.15.8
88c5c971 14
c1e74734 15=head1 DESCRIPTION
8f12b018 16
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17This document describes differences between the 5.15.7 release and
18the 5.15.8 release.
8f12b018 19
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20If you are upgrading from an earlier release such as 5.15.6, first read
21L<perl5157delta>, which describes differences between 5.15.6 and
225.15.7.
26afcec5 23
c1e74734 24=head1 Notice
8f12b018 25
c1e74734 26XXX Any important notices here
d7fbd56d 27
c1e74734 28=head1 Core Enhancements
d7fbd56d 29
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30XXX New core language features go here. Summarise user-visible core language
31enhancements. Particularly prominent performance optimisations could go
32here, but most should go in the L</Performance Enhancements> section.
d7fbd56d 33
c1e74734 34[ List each enhancement as a =head2 entry ]
711a3903 35
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36=head2 Improved ability to mix locales and Unicode, including UTF-8 locales
37
38An optional parameter has been added to C<use locale>
39
40 use locale ':not_characters';
41
42which tells Perl to use all but the C<LC_CTYPE> and C<LC_COLLATE>
43portions of the current locale. Instead, the character set is assumed
44to be Unicode. This allows locales and Unicode to be seamlessly mixed,
45including the increasingly frequent UTF-8 locales. When using this
46hybrid form of locales, the C<:locale> layer to the L<open> pragma can
47be used to interface with the file system, and there are CPAN modules
48available for ARGV and environment variable conversions.
49
50Full details are in L<perllocale>.
51
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52=head2 New function C<fc> and corresponding escape sequence C<\F> for Unicode foldcase
53
54Unicode foldcase is an extension to lowercase that gives better results
55when comparing two strings case-insensitively. It has long been used
56internally in regular expression C</i> matching. Now it is available
57explicitly through the new C<fc> function call (enabled by
58S<C<"use feature 'fc'">>, or C<use v5.16>, or explicitly callable via
249950d7 59C<CORE::fc>) or through the new C<\F> sequence in double-quotish
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60strings.
61
62Full details are in L<perlfunc/fc>.
63
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64=head2 C<_> in subroutine prototypes
65
66The C<_> character in subroutine prototypes is now allowed before C<@> or
67C<%>.
68
74968535 69=head2 Supports (I<almost>) Unicode 6.1
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70
71Besides the addition of whole new scripts, and new characters in
72existing scripts, this new version of Unicode, as always, makes some
73changes to existing characters. One change that may trip up some
74applications is that the General Category of two characters in the
75Latin-1 range, PILCROW SIGN and SECTION SIGN, has been changed from
76Other_Symbol to Other_Punctuation. The same change has been made for
77a character in each of Tibetan, Ethiopic, and Aegean.
78The code points U+3248..U+324F (CIRCLED NUMBER TEN ON BLACK SQUARE
79through CIRCLED NUMBER EIGHTY ON BLACK SQUARE) have had their General
80Category changed from Other_Symbol to Other_Numeric. The Line Break
81property has changes for Hebrew and Japanese; and as a consequence of
82other changes in 6.1, the Perl regular expression construct C<\X> now
83works differently for some characters in Thai and Lao.
84
85New aliases (synonyms) have been defined for many property values;
86these, along with the previously existing ones, are all cross indexed in
87L<perluniprops>.
88
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89The return value of C<charnames::viacode()> is affected by other
90changes:
91
92 Code point Old Name New Name
93 U+000A LINE FEED (LF) LINE FEED
94 U+000C FORM FEED (FF) FORM FEED
95 U+000D CARRIAGE RETURN (CR) CARRIAGE RETURN
96 U+0085 NEXT LINE (NEL) NEXT LINE
97 U+008E SINGLE-SHIFT 2 SINGLE-SHIFT-2
98 U+008F SINGLE-SHIFT 3 SINGLE-SHIFT-3
99 U+0091 PRIVATE USE 1 PRIVATE USE-1
100 U+0092 PRIVATE USE 2 PRIVATE USE-2
101 U+2118 SCRIPT CAPITAL P WEIERSTRASS ELLIPTIC FUNCTION
102
103Perl will accept any of these names as input, but
104C<charnames::viacode()> now returns the new name of each pair. The
105change for U+2118 is considered by Unicode to be a correction, that is
106the original name was a mistake (but again, it will remain forever valid
107to use it to refer to U+2118). But most of these changes are the
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108fallout of the mistake Unicode 6.0 made in naming a character used in
109Japanese cell phones to be "BELL", which conflicts with the long
110standing industry use of (and Unicode's recommendation to use) that name
111to mean the ASCII control character at U+0007. As a result, that name
112has been deprecated in Perl since v5.14; and any use of it will raise a
113warning message (unless turned off). The name "ALERT" is now the
114preferred name for this code point, with "BEL" being an acceptable short
115form. The name for the new cell phone character, at code point U+1F514,
116remains undefined in this version of Perl (hence we don't quite
117implement all of Unicode 6.1), but starting in v5.18, BELL will mean
118this character, and not U+0007.
119
120Unicode has taken steps to make sure that this sort of mistake does not
121happen again. The Standard now includes all the generally accepted
122names and abbreviations for control characters, whereas previously it
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123didn't (though there were recommended names for most of them, which Perl
124used). This means that most of those recommended names are now
125officially in the Standard. Unicode did not recommend names for the
126four code points listed above between U+008E and U+008F, and in
127standardizing them Unicode subtly changed the names that Perl had
128previously given them, by replacing the final blank in each name by a
129hyphen. Unicode also officially accepts names that Perl had deprecated,
130such as FILE SEPARATOR. Now the only deprecated name is BELL.
131Finally, Perl now uses the new official names instead of the old
132recommended names for the first four code points in the list above (the
133ones which have the parentheses in them).
134
135Now that the names have been placed in the Unicode standard, these kinds
136of changes should not happen again, though corrections, such as to
137U+2118, are still possible.
138
139Unicode also added some name abbreviations, which Perl now accepts:
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140SP for SPACE;
141TAB for CHARACTER TABULATION;
142NEW LINE, END OF LINE, NL, and EOL for LINE FEED;
143LOCKING-SHIFT ONE for SHIFT OUT;
144LOCKING-SHIFT ZERO for SHIFT IN;
145and ZWNBSP for ZERO WIDTH NO-BREAK SPACE.
146
147More details on this version of Unicode are provided in
148L<http://www.unicode.org/versions/Unicode6.1.0/>.
149
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150=head2 Added C<is_utf8_char_buf()>
151
152This function is designed to replace the deprecated L</is_utf8_char()>
153function. It includes an extra parameter to make sure it doesn't read
154past the end of the input buffer.
155
c1e74734 156=head1 Security
711a3903 157
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158XXX Any security-related notices go here. In particular, any security
159vulnerabilities closed should be noted here rather than in the
160L</Selected Bug Fixes> section.
711a3903 161
c1e74734 162[ List each security issue as a =head2 entry ]
6ba817f3 163
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164=head2 Use C<is_utf8_char_buf()> and not C<is_utf8_char()>
165
166The latter function is now deprecated because its API is insufficient to
167guarantee that it doesn't read (up to 12 bytes in the worst case) beyond
168the end of its input string. See
169L<is_utf8_char_buf()|/Added is_utf8_char_buf()>.
170
c1e74734 171=head1 Incompatible Changes
6ba817f3 172
c1e74734 173XXX For a release on a stable branch, this section aspires to be:
6b339779 174
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175 There are no changes intentionally incompatible with 5.XXX.XXX
176 If any exist, they are bugs, and we request that you submit a
177 report. See L</Reporting Bugs> below.
6b339779 178
c1e74734 179[ List each incompatible change as a =head2 entry ]
b240fc0f 180
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181=head2 Special blocks called in void context
182
183Special blocks (C<BEGIN>, C<CHECK>, C<INIT>, C<UNITCHECK>, C<END>) are now
184called in void context. This avoids wasteful copying of the result of the
185last statement [perl #108794].
186
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187=head2 The C<overloading> pragma and regexp objects
188
189With C<no overloading>, regular expression objects returned by C<qr//> are
190now stringified as "Regexp=REGEXP(0xbe600d)" instead of the regular
191expression itself [perl #108780].
192
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193=head2 Two XS typemap Entries removed
194
195Two presumably unused XS typemap entries have been removed from the
196core typemap: T_DATAUNIT and T_CALLBACK. If you are, against all odds,
197a user of these, please see the instructions on how to regain them
198in L<perlxstypemap>.
199
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200=head2 Unicode 6.1 has incompatibilities with Unicode 6.0
201
202These are detailed in L</Supports (almost) Unicode 6.1> above.
203
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204=head2 Changed returns for some properties in C<Unicode::UCD::prop_invmap()>
205
206The return values for C<prop_invmap> have been changed for some
207properties to make the returned lists significantly smaller. This
208allows those lists to be searched faster.
209
210This function was introduced earlier in the v5.15 series of releases,
211and the API will not be considered stable until v5.16.
212
213See L<Unicode::UCD/prop_invmap()> for details on the new interface.
214
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215=head2 C<$$> and C<getppid()> no longer emulate POSIX semantics under LinuxThreads
216
217The POSIX emulation of C<$$> and C<getppid()> under the obsolete
218LinuxThreads implementation has been removed (the C<$$> emulation was
219actually removed in v5.15.0). This only impacts users of Linux 2.4 and
220users of Debian GNU/kFreeBSD up to and including 6.0, not the vast
221majority of Linux installations that use NPTL threads.
222
223This means that C<getppid()> like C<$$> is now always guaranteed to
224return the OS's idea of the current state of the process, not perl's
225cached version of it.
226
227See the documentation for L<$$|perlvar/$$> for details.
228
c1e74734 229=head1 Deprecations
b240fc0f 230
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231XXX Any deprecated features, syntax, modules etc. should be listed here.
232In particular, deprecated modules should be listed here even if they are
233listed as an updated module in the L</Modules and Pragmata> section.
4e6ab4ad 234
c1e74734 235[ List each deprecation as a =head2 entry ]
4e6ab4ad 236
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237=head2 C<is_utf8_char()>
238
239This function is deprecated because it could read beyond the end of the
240input string. Use the new L<is_utf8_char_buf()|/Added is_utf8_char_buf()>
241instead.
242
c1e74734 243=head1 Performance Enhancements
79e10968 244
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245XXX Changes which enhance performance without changing behaviour go here. There
246may well be none in a stable release.
79e10968 247
c1e74734 248[ List each enhancement as a =item entry ]
ea88c40c 249
c1e74734 250=over 4
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251
252=item *
253
c1e74734 254XXX
cadced9f 255
c1e74734 256=back
cadced9f 257
c1e74734 258=head1 Modules and Pragmata
cadced9f 259
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260XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/>
261go here. If Module::CoreList is updated, generate an initial draft of the
262following sections using F<Porting/corelist-perldelta.pl>, which prints stub
263entries to STDOUT. Results can be pasted in place of the '=head2' entries
264below. A paragraph summary for important changes should then be added by hand.
265In an ideal world, dual-life modules would have a F<Changes> file that could be
266cribbed.
cadced9f 267
c1e74734 268[ Within each section, list entries as a =item entry ]
07feb684 269
c1e74734 270=head2 New Modules and Pragmata
cadced9f 271
c1e74734 272=over 4
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273
274=item *
275
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276The C<mmap> PerlIO layer is no longer implemented by perl itself, but has
277been moved out into the new L<PerlIO::mmap> module.
4e6e9b23 278
c1e74734 279=back
4e6e9b23 280
c1e74734 281=head2 Updated Modules and Pragmata
4e6e9b23 282
c1e74734 283=over 4
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284
285=item *
286
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287L<arybase> has been upgraded from version 0.03 to version 0.04.
288
289List slices no longer modify items on the stack belonging to outer lists
290[perl #109570].
291
292=item *
293
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294L<B> has been upgraded from version 1.33 to version 1.34.
295
296C<B::COP> now has a C<stashflags> method, corresponding to a new internal
297field added in 5.15.4 [perl #108860].
298
299=item *
300
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301L<Carp> has been upgraded from version 1.24 to version 1.25.
302
303It now puts a dot after the file and line number, just like errors from
304C<die> [perl #106538].
305
306=item *
307
df697508 308L<Compress::Raw::Bzip2> has been upgraded from version 2.045 to version 2.048.
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309
310=item *
311
ecea5ab2 312L<Compress::Raw::Zlib> has been upgraded from version 2.045 to version 2.048.
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313
314=item *
315
8dcc3739 316L<Compress::Zlib> has been upgraded from version 2.046 to version 2.048.
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317
318=item *
319
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320L<CPAN::Meta> has been upgraded from version 2.113640 to version 2.120351.
321
322Work around a memory leak bug involving version objects in boolean context.
323
324=item *
325
ce09a8a1 326L<CPAN::Meta::YAML> has been upgraded from version 0.005 to version 0.007.
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327
328=item *
329
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330L<CPANPLUS> has been upgraded from version 0.9116 to version 0.9118.
331
332=item *
333
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334L<CPANPLUS::Dist::Build> has been upgraded from version 0.60 to version 0.62.
335
336=item *
337
b34385a6 338L<DB_File> has been upgraded from version 1.824 to version 1.826.
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339
340=item *
341
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342L<diagnostics> has been upgraded from version 1.27 to version 1.28.
343
344When searching for F<perldiag.pod>, it no longer uses paths that were only
345relevant on Perl 5.004 and earlier.
346
347=item *
348
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349L<ExtUtils::ParseXS> has been upgraded from version 3.12 to version 3.15.
350
351The new version comes with important tools for sharing typemaps between
352different CPAN distributions.
353
354=item *
355
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356L<File::Copy> has been upgraded from version 2.21 to version 2.23.
357
358It no longer emits warnings when copying files with newlines in their names
359[perl #109104].
360
361=item *
362
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363L<IPC::Cmd> has been upgraded from version 0.72 to version 0.76.
364
365=item *
366
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367L<Math::Complex> has been upgraded from version 1.58 to version 1.59.
368
369This avoids a new core warning.
370
371=item *
372
4402c0f3 373L<Module::Metadata> has been upgraded from version 1.000007 to version 1.000009.
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374
375Adds C<provides> method to generate a CPAN META provides data structure
376correctly; use of C<package_versions_from_directory> is discouraged.
377
378=item *
379
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380L<Parse::CPAN::Meta> has been upgraded from version 1.4401 to version 1.4402.
381
382=item *
383
1051d5b5 384L<Pod::Parser> has been upgraded from version 1.37 to version 1.51.
88c5c971 385
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386=item *
387
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388L<Term::ReadLine> has been upgraded from version 1.07 to version 1.08.
389
390Its C<tkRunning> method now supports L<AnyEvent> event loops, and not just
391L<Tk>. A more general mechanism has been proposed, so this may be reverted
392before Perl 5.16 [perl #108470].
393
394=item *
395
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396L<Time::HiRes> has been upgraded from version 1.9724 to version 1.9725.
397
694644e0 398C<Time::HiRes::stat()> no longer corrupts the Perl stack.
858dcda5
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399
400=item *
401
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402L<Unicode::UCD> has been upgraded from version 0.39 to 0.40.
403
404The only change is to fix a formatting error in the Pod.
405
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406=item *
407
408L<Version::Requirements> has been upgraded from version 0.101021 to version 0.101022.
409
c1e74734 410=back
c0504019 411
c1e74734 412=head2 Removed Modules and Pragmata
937a45d0 413
c1e74734 414=over 4
937a45d0 415
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416=item *
417
c1e74734 418XXX
ef337e16 419
7f28d7ed 420=back
679b54e7 421
52deee2e 422=head1 Documentation
3c7c5233 423
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424XXX Changes to files in F<pod/> go here. Consider grouping entries by
425file and be sure to link to the appropriate page, e.g. L<perlfunc>.
a71d67b1 426
c1e74734 427=head2 New Documentation
cadced9f 428
c1e74734 429XXX Changes which create B<new> files in F<pod/> go here.
cadced9f 430
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431=head3 L<perlxstypemap>
432
433The new manual describes the XS typemapping mechanism in unprecedented
434detail and combines new documentation with information extracted from
435L<perlxs> and the previously unofficial list of all core typemaps.
436
c1e74734 437=head3 L<XXX>
cadced9f 438
c1e74734 439XXX Description of the purpose of the new file here
cadced9f 440
c1e74734 441=head2 Changes to Existing Documentation
cadced9f 442
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443XXX Changes which significantly change existing files in F<pod/> go here.
444However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics>
445section.
cadced9f 446
c1e74734 447=head3 L<XXX>
7e7629fa 448
52deee2e 449=over 4
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450
451=item *
452
c1e74734 453XXX Description of the change here
c2654555 454
52deee2e 455=back
85ca3be7 456
52deee2e 457=head1 Diagnostics
85ca3be7 458
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459The following additions or changes have been made to diagnostic output,
460including warnings and fatal error messages. For the complete list of
461diagnostic messages, see L<perldiag>.
7788a270 462
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463XXX New or changed warnings emitted by the core's C<C> code go here. Also
464include any changes in L<perldiag> that reconcile it to the C<C> code.
6138a722 465
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466[ Within each section, list entries as a =item entry that links to perldiag,
467 e.g.
a47fb3fe 468
c1e74734 469 =item *
4888c563 470
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471 L<Invalid version object|perldiag/"Invalid version object">
472]
a3f52e2e 473
c1e74734 474=head2 New Diagnostics
52272450 475
c1e74734 476XXX Newly added diagnostic messages go here
52272450 477
c1e74734 478=head3 New Errors
a47fb3fe 479
0aaeb177 480=over 4
7ef25837 481
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482=item *
483
c1e74734 484XXX L<message|perldiag/"message">
604a99bd 485
c1e74734 486=back
ea88c40c 487
c1e74734 488=head3 New Warnings
ea88c40c 489
c1e74734 490=over 4
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491
492=item *
493
c1e74734 494XXX L<message|perldiag/"message">
ea88c40c 495
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496=back
497
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498=head2 Changes to Existing Diagnostics
499
500XXX Changes (i.e. rewording) of diagnostic messages go here
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501
502=over 4
503
504=item *
505
c1e74734 506XXX Describe change here
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507
508=back
509
0aaeb177 510=head1 Utility Changes
9cfd094e 511
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512XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go
513here. Most of these are built within the directories F<utils> and F<x2p>.
d7fbd56d 514
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515[ List utility changes as a =head3 entry for each utility and =item
516entries for each change
517Use L<XXX> with program names to get proper documentation linking. ]
d7fbd56d 518
c1e74734 519=head3 L<XXX>
d7fbd56d 520
c1e74734 521=over 4
ba91b4f3 522
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523=item *
524
c1e74734 525XXX
b18aa002 526
52deee2e 527=back
ba91b4f3 528
52deee2e 529=head1 Configuration and Compilation
f4912a50 530
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531XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools
532go here. Any other changes to the Perl build process should be listed here.
533However, any platform-specific changes should be listed in the
534L</Platform Support> section, instead.
a3f52e2e 535
c1e74734 536[ List changes as a =item entry ].
a3f52e2e 537
0aaeb177 538=over 4
ad32999b 539
f4912a50 540=item *
ad32999b 541
c1e74734 542XXX
c15f899f 543
7f28d7ed 544=back
ad32999b 545
c1e74734 546=head1 Testing
39de7394 547
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548XXX Any significant changes to the testing of a freshly built perl should be
549listed here. Changes which create B<new> files in F<t/> go here as do any
550large changes to the testing harness (e.g. when parallel testing was added).
551Changes to existing files in F<t/> aren't worth summarising, although the bugs
552that they represent may be covered elsewhere.
39de7394 553
c1e74734 554[ List each test improvement as a =item entry ]
39de7394 555
c1e74734 556=over 4
5dd80d85 557
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558=item *
559
c1e74734 560XXX
52272450 561
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562=item *
563
564The test suite for typemaps has been extended to cover a larger fraction of
565the core typemaps.
566
52deee2e 567=back
5dd80d85 568
c1e74734 569=head1 Platform Support
52272450 570
c1e74734 571XXX Any changes to platform support should be listed in the sections below.
52272450 572
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573[ Within the sections, list each platform as a =item entry with specific
574changes as paragraphs below it. ]
ad266194 575
c1e74734 576=head2 New Platforms
ad266194 577
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578XXX List any platforms that this version of perl compiles on, that previous
579versions did not. These will either be enabled by new files in the F<hints/>
580directories, or new subdirectories and F<README> files at the top level of the
581source tree.
ad266194 582
c1e74734 583=over 4
838cf719 584
c1e74734 585=item XXX-some-platform
838cf719 586
c1e74734 587XXX
b00f6edb 588
c1e74734 589=back
b00f6edb 590
c1e74734 591=head2 Discontinued Platforms
7a3fd9ed 592
c1e74734 593XXX List any platforms that this version of perl no longer compiles on.
7a3fd9ed 594
c1e74734 595=over 4
1a50d74b 596
c1e74734 597=item XXX-some-platform
1a50d74b 598
c1e74734 599XXX
ea88c40c 600
c1e74734 601=back
ea88c40c 602
c1e74734 603=head2 Platform-Specific Notes
ea88c40c 604
c1e74734
CBW
605XXX List any changes for specific platforms. This could include configuration
606and compilation changes or changes in portability/compatibility. However,
607changes within modules for platforms should generally be listed in the
608L</Modules and Pragmata> section.
ea88c40c 609
c1e74734 610=over 4
ea88c40c 611
c1e74734 612=item XXX-some-platform
ea88c40c 613
c1e74734 614XXX
ea88c40c 615
c1e74734 616=back
ea88c40c 617
c1e74734 618=head1 Internal Changes
ea88c40c 619
c1e74734
CBW
620XXX Changes which affect the interface available to C<XS> code go here.
621Other significant internal changes for future core maintainers should
622be noted as well.
ea88c40c 623
c1e74734 624[ List each change as a =item entry ]
ea88c40c 625
c1e74734 626=over 4
ea88c40c
FC
627
628=item *
629
c1e74734 630XXX
ea88c40c 631
c1e74734 632=back
ea88c40c 633
c1e74734 634=head1 Selected Bug Fixes
ea88c40c 635
c1e74734
CBW
636XXX Important bug fixes in the core language are summarised here.
637Bug fixes in files in F<ext/> and F<lib/> are best summarised in
638L</Modules and Pragmata>.
ea88c40c 639
c1e74734 640[ List each fix as a =item entry ]
ea88c40c 641
c1e74734 642=over 4
ea88c40c
FC
643
644=item *
645
6025c6dd
RS
646C<~~> now correctly handles the precedence of Any~~Object, and is not tricked
647by an overloaded object on the left-hand side.
ea88c40c 648
249950d7
FC
649=item *
650
651C<stat _> no longer warns about unopened filehandles [perl #71002].
652
653=item *
654
655C<stat> on an unopened filehandle now warns consistently, instead of
656skipping the warning at times.
657
658=item *
659
660A change in an earlier 5.15 release caused warning hints to propagate into
661C<do $file>. This has been fixed [rt.cpan.org #72767].
662
663=item *
664
665Starting with 5.12.0, Perl used to get its internal bookkeeping muddled up
666after assigning C<${ qr// }> to a hash element and locking it with
667L<Hash::Util>. This could result in double frees, crashes or erratic
668behaviour.
669
92c88ef1
FC
670=item *
671
672In 5.15.7, some typeglobs in the CORE namespace were made read-only by
673mistake. This has been fixed [rt.cpan.org #74289].
674
b1ea7742
FC
675=item *
676
677C<-t> now works when stacked with other filetest operators [perl #77388].
678
a1d95121
FC
679=item *
680
681Stacked filetest operators now only call FETCH once on a tied argument.
682
ff4ff6f3
FC
683=item *
684
685C</.*/g> would sometimes refuse to match at the end of a string that ends
686with "\n". This has been fixed [perl #109206].
687
a7bff800
FC
688=item *
689
ea317ccb
KW
690C<m/[[:ascii:]]/i> and C</\p{ASCII}/i> now match identically (when not
691under a differing locale). This fixes a regression introduced in 5.14
692in which the first expression could match characters outside of ASCII,
693such as the KELVIN SIGN.
694
695=item *
696
a7bff800
FC
697Method calls whose arguments were all surrounded with C<my()> or C<our()>
698(as in C<<$object->method(my($a,$b)) >>) used to force lvalue context on
699the subroutine. This would prevent lvalue methods from returning certain
700values. Due to lvalue fixes earlier in the 5.15.x series, it would also
701prevent non-lvalue methods from being called [perl #109264].
702
703=for comment
704This bug I<did> affect earlier stable releases. It is just the last
705sentence that does not apply to 5.14.
706
0aae26c1
FC
707=item *
708
709The C<SvPVutf8> C function no longer tries to modify its argument,
710resulting in errors [perl #108994].
711
712=item *
713
714C<SvPVutf8> now works properly with magical variables.
715
716=item *
717
718C<SvPVbyte> now works properly non-PVs.
719
07315176
KW
720=item *
721
67addccf
KW
722C</[[:ascii:]]/> and C</[[:blank:]]/> now use locale rules under
723C<use locale> when the platform supports that. Previously, they used
07315176
KW
724the platform's native character set.
725
5d103fec
KW
726=item *
727
728A regression introduced in 5.13.6 was fixed. This involved an inverted
729bracketed character class in a regular expression that consisted solely
730of a Unicode property, that property wasn't getting inverted outside the
731Latin1 range.
732
ea88c40c
FC
733=back
734
c1e74734 735=head1 Known Problems
ea88c40c 736
c1e74734
CBW
737XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any
738tests that had to be C<TODO>ed for the release would be noted here, unless
739they were specific to a particular platform (see below).
ea88c40c 740
c1e74734
CBW
741This is a list of some significant unfixed bugs, which are regressions
742from either 5.XXX.XXX or 5.XXX.XXX.
ea88c40c 743
c1e74734 744[ List each fix as a =item entry ]
ea88c40c 745
c1e74734 746=over 4
18af289e 747
c1e74734 748=item *
18af289e 749
c1e74734 750XXX
1ac442bc 751
c1e74734 752=back
c0154fe2 753
c1e74734 754=head1 Obituary
1ac442bc 755
c1e74734
CBW
756XXX If any significant core contributor has died, we've added a short obituary
757here.
84b2a83e 758
52deee2e 759=head1 Acknowledgements
8fe05716 760
c1e74734
CBW
761XXX Generate this with:
762
763 perl Porting/acknowledgements.pl v5.15.7..HEAD
29cf780c 764
44691e6f
AB
765=head1 Reporting Bugs
766
767If you find what you think is a bug, you might check the articles
52deee2e
DR
768recently posted to the comp.lang.perl.misc newsgroup and the perl
769bug database at http://rt.perl.org/perlbug/ . There may also be
44691e6f
AB
770information at http://www.perl.org/ , the Perl Home Page.
771
772If you believe you have an unreported bug, please run the L<perlbug>
52deee2e
DR
773program included with your release. Be sure to trim your bug down
774to a tiny but sufficient test case. Your bug report, along with the
775output of C<perl -V>, will be sent off to perlbug@perl.org to be
776analysed by the Perl porting team.
44691e6f
AB
777
778If the bug you are reporting has security implications, which make it
52deee2e
DR
779inappropriate to send to a publicly archived mailing list, then please send
780it to perl5-security-report@perl.org. This points to a closed subscription
781unarchived mailing list, which includes
782all the core committers, who will be able
783to help assess the impact of issues, figure out a resolution, and help
784co-ordinate the release of patches to mitigate or fix the problem across all
785platforms on which Perl is supported. Please only use this address for
786security issues in the Perl core, not for modules independently
787distributed on CPAN.
44691e6f
AB
788
789=head1 SEE ALSO
790
52deee2e
DR
791The F<Changes> file for an explanation of how to view exhaustive details
792on what changed.
44691e6f
AB
793
794The F<INSTALL> file for how to build Perl.
795
796The F<README> file for general stuff.
797
798The F<Artistic> and F<Copying> files for copyright information.
799
800=cut