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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "PERL582DELTA 1" | |
132 | .TH PERL582DELTA 1 "2006-01-07" "perl v5.8.8" "Perl Programmers Reference Guide" | |
133 | .SH "NAME" | |
134 | perl582delta \- what is new for perl v5.8.2 | |
135 | .SH "DESCRIPTION" | |
136 | .IX Header "DESCRIPTION" | |
137 | This document describes differences between the 5.8.1 release and | |
138 | the 5.8.2 release. | |
139 | .PP | |
140 | If you are upgrading from an earlier release such as 5.6.1, first read | |
141 | the perl58delta, which describes differences between 5.6.0 and | |
142 | 5.8.0, and the perl581delta, which describes differences between | |
143 | 5.8.0 and 5.8.1. | |
144 | .SH "Incompatible Changes" | |
145 | .IX Header "Incompatible Changes" | |
146 | For threaded builds for modules calling certain re-entrant system calls, | |
147 | binary compatibility was accidentally lost between 5.8.0 and 5.8.1. | |
148 | Binary compatibility with 5.8.0 has been restored in 5.8.2, which | |
149 | necessitates breaking compatibility with 5.8.1. We see this as the | |
150 | lesser of two evils. | |
151 | .PP | |
152 | This will only affect people who have a threaded perl 5.8.1, and compiled | |
153 | modules which use these calls, and now attempt to run the compiled modules | |
154 | with 5.8.2. The fix is to re-compile and re-install the modules using 5.8.2. | |
155 | .SH "Core Enhancements" | |
156 | .IX Header "Core Enhancements" | |
157 | .Sh "Hash Randomisation" | |
158 | .IX Subsection "Hash Randomisation" | |
159 | The hash randomisation introduced with 5.8.1 has been amended. It | |
160 | transpired that although the implementation introduced in 5.8.1 was source | |
161 | compatible with 5.8.0, it was not binary compatible in certain cases. 5.8.2 | |
162 | contains an improved implementation which is both source and binary | |
163 | compatible with both 5.8.0 and 5.8.1, and remains robust against the form of | |
164 | attack which prompted the change for 5.8.1. | |
165 | .PP | |
166 | We are grateful to the Debian project for their input in this area. | |
167 | See \*(L"Algorithmic Complexity Attacks\*(R" in perlsec for the original | |
168 | rationale behind this change. | |
169 | .Sh "Threading" | |
170 | .IX Subsection "Threading" | |
171 | Several memory leaks associated with variables shared between threads | |
172 | have been fixed. | |
173 | .SH "Modules and Pragmata" | |
174 | .IX Header "Modules and Pragmata" | |
175 | .Sh "Updated Modules And Pragmata" | |
176 | .IX Subsection "Updated Modules And Pragmata" | |
177 | The following modules and pragmata have been updated since Perl 5.8.1: | |
178 | .IP "Devel::PPPort" 4 | |
179 | .IX Item "Devel::PPPort" | |
180 | .PD 0 | |
181 | .IP "Digest::MD5" 4 | |
182 | .IX Item "Digest::MD5" | |
183 | .IP "I18N::LangTags" 4 | |
184 | .IX Item "I18N::LangTags" | |
185 | .IP "libnet" 4 | |
186 | .IX Item "libnet" | |
187 | .IP "MIME::Base64" 4 | |
188 | .IX Item "MIME::Base64" | |
189 | .IP "Pod::Perldoc" 4 | |
190 | .IX Item "Pod::Perldoc" | |
191 | .IP "strict" 4 | |
192 | .IX Item "strict" | |
193 | .PD | |
194 | Documentation improved | |
195 | .IP "Tie::Hash" 4 | |
196 | .IX Item "Tie::Hash" | |
197 | Documentation improved | |
198 | .IP "Time::HiRes" 4 | |
199 | .IX Item "Time::HiRes" | |
200 | .PD 0 | |
201 | .IP "Unicode::Collate" 4 | |
202 | .IX Item "Unicode::Collate" | |
203 | .IP "Unicode::Normalize" 4 | |
204 | .IX Item "Unicode::Normalize" | |
205 | .IP "\s-1UNIVERSAL\s0" 4 | |
206 | .IX Item "UNIVERSAL" | |
207 | .PD | |
208 | Documentation improved | |
209 | .SH "Selected Bug Fixes" | |
210 | .IX Header "Selected Bug Fixes" | |
211 | Some syntax errors involving unrecognized filetest operators are now handled | |
212 | correctly by the parser. | |
213 | .SH "Changed Internals" | |
214 | .IX Header "Changed Internals" | |
215 | Interpreter initialization is more complete when \-DMULTIPLICITY is off. | |
216 | This should resolve problems with initializing and destroying the Perl | |
217 | interpreter more than once in a single process. | |
218 | .SH "Platform Specific Problems" | |
219 | .IX Header "Platform Specific Problems" | |
220 | Dynamic linker flags have been tweaked for Solaris and \s-1OS\s0 X, which should | |
221 | solve problems seen while building some \s-1XS\s0 modules. | |
222 | .PP | |
223 | Bugs in \s-1OS/2\s0 sockets and tmpfile have been fixed. | |
224 | .PP | |
225 | In \s-1OS\s0 X \f(CW\*(C`setreuid\*(C'\fR and friends are troublesome \- perl will now work | |
226 | around their problems as best possible. | |
227 | .SH "Future Directions" | |
228 | .IX Header "Future Directions" | |
229 | Starting with 5.8.3 we intend to make more frequent maintenance releases, | |
230 | with a smaller number of changes in each. The intent is to propagate | |
231 | bug fixes out to stable releases more rapidly and make upgrading stable | |
232 | releases less of an upheaval. This should give end users more | |
233 | flexibility in their choice of upgrade timing, and allow them easier | |
234 | assessment of the impact of upgrades. The current plan is for code freezes | |
235 | as follows | |
236 | .IP "\(bu" 4 | |
237 | 5.8.3 23:59:59 \s-1GMT\s0, Wednesday December 31st 2003 | |
238 | .IP "\(bu" 4 | |
239 | 5.8.4 23:59:59 \s-1GMT\s0, Wednesday March 31st 2004 | |
240 | .IP "\(bu" 4 | |
241 | 5.8.5 23:59:59 \s-1GMT\s0, Wednesday June 30th 2004 | |
242 | .PP | |
243 | with the release following soon after, when testing is complete. | |
244 | .PP | |
245 | See \*(L"Future Directions\*(R" in perl581delta for more soothsaying. | |
246 | .SH "Reporting Bugs" | |
247 | .IX Header "Reporting Bugs" | |
248 | If you find what you think is a bug, you might check the articles | |
249 | recently posted to the comp.lang.perl.misc newsgroup and the perl | |
250 | bug database at http://bugs.perl.org/. There may also be | |
251 | information at http://www.perl.com/, the Perl Home Page. | |
252 | .PP | |
253 | If you believe you have an unreported bug, please run the \fBperlbug\fR | |
254 | program included with your release. Be sure to trim your bug down | |
255 | to a tiny but sufficient test case. Your bug report, along with the | |
256 | output of \f(CW\*(C`perl \-V\*(C'\fR, will be sent off to perlbug@perl.org to be | |
257 | analysed by the Perl porting team. You can browse and search | |
258 | the Perl 5 bugs at http://bugs.perl.org/ | |
259 | .SH "SEE ALSO" | |
260 | .IX Header "SEE ALSO" | |
261 | The \fIChanges\fR file for exhaustive details on what changed. | |
262 | .PP | |
263 | The \fI\s-1INSTALL\s0\fR file for how to build Perl. | |
264 | .PP | |
265 | The \fI\s-1README\s0\fR file for general stuff. | |
266 | .PP | |
267 | The \fIArtistic\fR and \fICopying\fR files for copyright information. |