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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. |