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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "PERL586DELTA 1" | |
132 | .TH PERL586DELTA 1 "2006-01-07" "perl v5.8.8" "Perl Programmers Reference Guide" | |
133 | .SH "NAME" | |
134 | perl586delta \- what is new for perl v5.8.6 | |
135 | .SH "DESCRIPTION" | |
136 | .IX Header "DESCRIPTION" | |
137 | This document describes differences between the 5.8.5 release and | |
138 | the 5.8.6 release. | |
139 | .SH "Incompatible Changes" | |
140 | .IX Header "Incompatible Changes" | |
141 | There are no changes incompatible with 5.8.5. | |
142 | .SH "Core Enhancements" | |
143 | .IX Header "Core Enhancements" | |
144 | The perl interpreter is now more tolerant of UTF\-16\-encoded scripts. | |
145 | .PP | |
146 | On Win32, Perl can now use non-IFS compatible LSPs, which allows Perl to | |
147 | work in conjunction with firewalls such as McAfee Guardian. For full details | |
148 | see the file \fI\s-1README\s0.win32\fR, particularly if you're running Win95. | |
149 | .SH "Modules and Pragmata" | |
150 | .IX Header "Modules and Pragmata" | |
151 | .IP "\(bu" 4 | |
152 | With the \f(CW\*(C`base\*(C'\fR pragma, an intermediate class with no fields used to messes | |
153 | up private fields in the base class. This has been fixed. | |
154 | .IP "\(bu" 4 | |
155 | Cwd upgraded to version 3.01 (as part of the new PathTools distribution) | |
156 | .IP "\(bu" 4 | |
157 | Devel::PPPort upgraded to version 3.03 | |
158 | .IP "\(bu" 4 | |
159 | File::Spec upgraded to version 3.01 (as part of the new PathTools distribution) | |
160 | .IP "\(bu" 4 | |
161 | Encode upgraded to version 2.08 | |
162 | .IP "\(bu" 4 | |
163 | ExtUtils::MakeMaker remains at version 6.17, as later stable releases currently | |
164 | available on \s-1CPAN\s0 have some issues with core modules on some core platforms. | |
165 | .IP "\(bu" 4 | |
166 | I18N::LangTags upgraded to version 0.35 | |
167 | .IP "\(bu" 4 | |
168 | Math::BigInt upgraded to version 1.73 | |
169 | .IP "\(bu" 4 | |
170 | Math::BigRat upgraded to version 0.13 | |
171 | .IP "\(bu" 4 | |
172 | MIME::Base64 upgraded to version 3.05 | |
173 | .IP "\(bu" 4 | |
174 | POSIX::sigprocmask function can now retrieve the current signal mask without | |
175 | also setting it. | |
176 | .IP "\(bu" 4 | |
177 | Time::HiRes upgraded to version 1.65 | |
178 | .SH "Utility Changes" | |
179 | .IX Header "Utility Changes" | |
180 | Perl has a new \-dt command-line flag, which enables threads support in the | |
181 | debugger. | |
182 | .SH "Performance Enhancements" | |
183 | .IX Header "Performance Enhancements" | |
184 | \&\f(CW\*(C`reverse sort ...\*(C'\fR is now optimized to sort in reverse, avoiding the | |
185 | generation of a temporary intermediate list. | |
186 | .PP | |
187 | \&\f(CW\*(C`for (reverse @foo)\*(C'\fR now iterates in reverse, avoiding the generation of a | |
188 | temporary reversed list. | |
189 | .SH "Selected Bug Fixes" | |
190 | .IX Header "Selected Bug Fixes" | |
191 | The regexp engine is now more robust when given invalid utf8 input, as is | |
192 | sometimes generated by buggy \s-1XS\s0 modules. | |
193 | .PP | |
194 | \&\f(CW\*(C`foreach\*(C'\fR on threads::shared array used to be able to crash Perl. This bug | |
195 | has now been fixed. | |
196 | .PP | |
197 | A regexp in \f(CW\*(C`STDOUT\*(C'\fR's destructor used to coredump, because the regexp pad | |
198 | was already freed. This has been fixed. | |
199 | .PP | |
200 | \&\f(CW\*(C`goto &\*(C'\fR is now more robust \- bugs in deep recursion and chained \f(CW\*(C`goto &\*(C'\fR | |
201 | have been fixed. | |
202 | .PP | |
203 | Using \f(CW\*(C`delete\*(C'\fR on an array no longer leaks memory. A \f(CW\*(C`pop\*(C'\fR of an item from a | |
204 | shared array reference no longer causes a leak. | |
205 | .PP | |
206 | \&\f(CW\*(C`eval_sv()\*(C'\fR failing a taint test could corrupt the stack \- this has been | |
207 | fixed. | |
208 | .PP | |
209 | On platforms with 64 bit pointers numeric comparison operators used to | |
210 | erroneously compare the addresses of references that are overloaded, rather | |
211 | than using the overloaded values. This has been fixed. | |
212 | .PP | |
213 | \&\f(CW\*(C`read\*(C'\fR into a UTF8\-encoded buffer with an offset off the end of the buffer | |
214 | no longer mis-calculates buffer lengths. | |
215 | .PP | |
216 | Although Perl has promised since version 5.8 that \f(CW\*(C`sort()\*(C'\fR would be | |
217 | stable, the two cases \f(CW\*(C`sort {$b cmp $a}\*(C'\fR and \f(CW\*(C`sort {$b <=> $a}\*(C'\fR could | |
218 | produce non-stable sorts. This is corrected in perl5.8.6. | |
219 | .PP | |
220 | Localising \f(CW$^D\fR no longer generates a diagnostic message about valid \-D | |
221 | flags. | |
222 | .SH "New or Changed Diagnostics" | |
223 | .IX Header "New or Changed Diagnostics" | |
224 | For \-t and \-T, | |
225 | Too late for \*(L"\-T\*(R" option | |
226 | has been changed to the more informative | |
227 | \*(L"\-T\*(R" is on the #! line, it must also be used on the command line | |
228 | .SH "Changed Internals" | |
229 | .IX Header "Changed Internals" | |
230 | From now on all applications embedding perl will behave as if perl | |
231 | were compiled with \-DPERL_USE_SAFE_PUTENV. See \*(L"Environment access\*(R" in | |
232 | the \fI\s-1INSTALL\s0\fR file for details. | |
233 | .PP | |
234 | Most \f(CW\*(C`C\*(C'\fR source files now have comments at the top explaining their purpose, | |
235 | which should help anyone wishing to get an overview of the implementation. | |
236 | .SH "New Tests" | |
237 | .IX Header "New Tests" | |
238 | There are significantly more tests for the \f(CW\*(C`B\*(C'\fR suite of modules. | |
239 | .SH "Reporting Bugs" | |
240 | .IX Header "Reporting Bugs" | |
241 | If you find what you think is a bug, you might check the articles | |
242 | recently posted to the comp.lang.perl.misc newsgroup and the perl | |
243 | bug database at http://bugs.perl.org. There may also be | |
244 | information at http://www.perl.org, the Perl Home Page. | |
245 | .PP | |
246 | If you believe you have an unreported bug, please run the \fBperlbug\fR | |
247 | program included with your release. Be sure to trim your bug down | |
248 | to a tiny but sufficient test case. Your bug report, along with the | |
249 | output of \f(CW\*(C`perl \-V\*(C'\fR, will be sent off to perlbug@perl.org to be | |
250 | analysed by the Perl porting team. You can browse and search | |
251 | the Perl 5 bugs at http://bugs.perl.org/ | |
252 | .SH "SEE ALSO" | |
253 | .IX Header "SEE ALSO" | |
254 | The \fIChanges\fR file for exhaustive details on what changed. | |
255 | .PP | |
256 | The \fI\s-1INSTALL\s0\fR file for how to build Perl. | |
257 | .PP | |
258 | The \fI\s-1README\s0\fR file for general stuff. | |
259 | .PP | |
260 | The \fIArtistic\fR and \fICopying\fR files for copyright information. |