perl5141delta(1)

1PERL5141DELTA(1)       Perl Programmers Reference Guide       PERL5141DELTA(1)
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NAME

6       perl5141delta - what is new for perl v5.14.1
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DESCRIPTION

9       This document describes differences between the 5.14.0 release and the
10       5.14.1 release.
11
12       If you are upgrading from an earlier release such as 5.12.0, first read
13       perl5140delta, which describes differences between 5.12.0 and 5.14.0.
14

Core Enhancements

16       No changes since 5.14.0.
17

Security

19       No changes since 5.14.0.
20

Incompatible Changes

22       There are no changes intentionally incompatible with 5.14.0. If any
23       exist, they are bugs and reports are welcome.
24

Deprecations

26       There have been no deprecations since 5.14.0.
27

Modules and Pragmata

29   New Modules and Pragmata
30       None
31
32   Updated Modules and Pragmata
33       ·   B::Deparse has been upgraded from version 1.03 to 1.04, to address
34           two regressions in Perl 5.14.0:
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36           Deparsing of the "glob" operator and its diamond ("<>") form now
37           works again. [perl #90898]
38
39           The presence of subroutines named "::::" or "::::::" no longer
40           causes B::Deparse to hang.
41
42       ·   Pod::Perldoc has been upgraded from version 3.15_03 to 3.15_04.
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44           It corrects the search paths on VMS. [perl #90640]
45
46   Removed Modules and Pragmata
47       None
48

Documentation

50   New Documentation
51       None
52
53   Changes to Existing Documentation
54       perlfunc
55
56       ·   "given", "when" and "default" are now listed in perlfunc.
57
58       ·   Documentation for "use" now includes a pointer to if.pm.
59
60       perllol
61
62       ·   perllol has been expanded with examples using the new "push
63           $scalar" syntax introduced in Perl 5.14.0.
64
65       perlop
66
67       ·   The explanation of bitwise operators has been expanded to explain
68           how they work on Unicode strings.
69
70       ·   The section on the triple-dot or yada-yada operator has been moved
71           up, as it used to separate two closely related sections about the
72           comma operator.
73
74       ·   More examples for "m//g" have been added.
75
76       ·   The "<<\FOO" here-doc syntax has been documented.
77
78       perlrun
79
80       ·   perlrun has undergone a significant clean-up.  Most notably, the
81           -0x... form of the -0 flag has been clarified, and the final
82           section on environment variables has been corrected and expanded.
83
84       POSIX
85
86       ·   The invocation documentation for "WIFEXITED", "WEXITSTATUS",
87           "WIFSIGNALED", "WTERMSIG", "WIFSTOPPED", and "WSTOPSIG" was
88           corrected.
89

Diagnostics

91       The following additions or changes have been made to diagnostic output,
92       including warnings and fatal error messages.  For the complete list of
93       diagnostic messages, see perldiag.
94
95   New Diagnostics
96       None
97
98   Changes to Existing Diagnostics
99       None
100

Utility Changes

102       None
103

Configuration and Compilation

105       ·   regexp.h has been modified for compatibility with GCC's "-Werror"
106           option, as used by some projects that include perl's header files.
107

Testing

109       ·   Some test failures in dist/Locale-Maketext/t/09_compile.t that
110           could occur depending on the environment have been fixed. [perl
111           #89896]
112
113       ·   A watchdog timer for t/re/re.t was lengthened to accommodate SH-4
114           systems which were unable to complete the tests before the previous
115           timer ran out.
116

Platform Support

118   New Platforms
119       None
120
121   Discontinued Platforms
122       None
123
124   Platform-Specific Notes
125       Solaris
126
127       ·   Documentation listing the Solaris packages required to build Perl
128           on Solaris 9 and Solaris 10 has been corrected.
129
130       Mac OS X
131
132       ·   The lib/locale.t test script has been updated to work on the
133           upcoming Lion release.
134
135       ·   Mac OS X specific compilation instructions have been clarified.
136
137       Ubuntu Linux
138
139       ·   The ODBM_File installation process has been updated with the new
140           library paths on Ubuntu natty.
141

Internal Changes

143       ·   The compiled representation of formats is now stored via the mg_ptr
144           of their PERL_MAGIC_fm. Previously it was stored in the string
145           buffer, beyond SvLEN(), the regular end of the string. SvCOMPILED()
146           and SvCOMPILED_{on,off}() now exist solely for compatibility for XS
147           code.  The first is always 0, the other two now no-ops.
148

Bug Fixes

150       ·   A bug has been fixed that would cause a "Use of freed value in
151           iteration" error if the next two hash elements that would be
152           iterated over are deleted. [perl #85026]
153
154       ·   Passing the same constant subroutine to both "index" and "formline"
155           no longer causes one or the other to fail. [perl #89218]
156
157       ·   5.14.0 introduced some memory leaks in regular expression character
158           classes such as "[\w\s]", which have now been fixed.
159
160       ·   An edge case in regular expression matching could potentially loop.
161           This happened only under "/i" in bracketed character classes that
162           have characters with multi-character folds, and the target string
163           to match against includes the first portion of the fold, followed
164           by another character that has a multi-character fold that begins
165           with the remaining portion of the fold, plus some more.
166
167            "s\N{U+DF}" =~ /[\x{DF}foo]/i
168
169           is one such case.  "\xDF" folds to "ss".
170
171       ·   Several Unicode case-folding bugs have been fixed.
172
173       ·   The new (in 5.14.0) regular expression modifier "/a" when repeated
174           like "/aa" forbids the characters outside the ASCII range that
175           match characters inside that range from matching under "/i".  This
176           did not work under some circumstances, all involving alternation,
177           such as:
178
179            "\N{KELVIN SIGN}" =~ /k|foo/iaa;
180
181           succeeded inappropriately.  This is now fixed.
182
183       ·   Fixed a case where it was possible that a freed buffer may have
184           been read from when parsing a here document.
185

Acknowledgements

187       Perl 5.14.1 represents approximately four weeks of development since
188       Perl 5.14.0 and contains approximately 3500 lines of changes across 38
189       files from 17 authors.
190
191       Perl continues to flourish into its third decade thanks to a vibrant
192       community of users and developers.  The following people are known to
193       have contributed the improvements that became Perl 5.14.1:
194
195       Bo Lindbergh, Claudio Ramirez, Craig A. Berry, David Leadbeater, Father
196       Chrysostomos, Jesse Vincent, Jim Cromie, Justin Case, Karl Williamson,
197       Leo Lapworth, Nicholas Clark, Nobuhiro Iwamatsu, smash, Tom
198       Christiansen, Ton Hospel, Vladimir Timofeev, and Zsban Ambrus.
199

Reporting Bugs

201       If you find what you think is a bug, you might check the articles
202       recently posted to the comp.lang.perl.misc newsgroup and the perl bug
203       database at http://rt.perl.org/perlbug/ .  There may also be
204       information at http://www.perl.org/ , the Perl Home Page.
205
206       If you believe you have an unreported bug, please run the perlbug
207       program included with your release.  Be sure to trim your bug down to a
208       tiny but sufficient test case.  Your bug report, along with the output
209       of "perl -V", will be sent off to perlbug@perl.org to be analysed by
210       the Perl porting team.
211
212       If the bug you are reporting has security implications, which make it
213       inappropriate to send to a publicly archived mailing list, then please
214       send it to perl5-security-report@perl.org. This points to a closed
215       subscription unarchived mailing list, which includes all the core
216       committers, who be able to help assess the impact of issues, figure out
217       a resolution, and help co-ordinate the release of patches to mitigate
218       or fix the problem across all platforms on which Perl is supported.
219       Please only use this address for security issues in the Perl core, not
220       for modules independently distributed on CPAN.
221