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Diffstat (limited to 'pod/perldelta.pod')
| -rw-r--r-- | pod/perldelta.pod | 369 |
1 files changed, 283 insertions, 86 deletions
diff --git a/pod/perldelta.pod b/pod/perldelta.pod index 495be84a47..dfe1fd67cd 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -2,186 +2,383 @@ =head1 NAME -perldelta - what is new for perl v5.25.8 +[ this is a template for a new perldelta file. Any text flagged as XXX needs +to be processed before release. ] + +perldelta - what is new for perl v5.25.9 =head1 DESCRIPTION -This document describes differences between the 5.25.7 release and the 5.25.8 +This document describes differences between the 5.25.8 release and the 5.25.9 release. -If you are upgrading from an earlier release such as 5.25.6, first read -L<perl5257delta>, which describes differences between 5.25.6 and 5.25.7. +If you are upgrading from an earlier release such as 5.25.7, first read +L<perl5258delta>, which describes differences between 5.25.7 and 5.25.8. + +=head1 Notice + +XXX Any important notices here =head1 Core Enhancements -=head2 New Hash Function For 64-bit Builds +XXX New core language features go here. Summarize user-visible core language +enhancements. Particularly prominent performance optimisations could go +here, but most should go in the L</Performance Enhancements> section. + +[ List each enhancement as a =head2 entry ] + +=head1 Security + +XXX Any security-related notices go here. In particular, any security +vulnerabilities closed should be noted here rather than in the +L</Selected Bug Fixes> section. + +[ List each security issue as a =head2 entry ] + +=head1 Incompatible Changes + +XXX For a release on a stable branch, this section aspires to be: + + There are no changes intentionally incompatible with 5.XXX.XXX + If any exist, they are bugs, and we request that you submit a + report. See L</Reporting Bugs> below. + +[ List each incompatible change as a =head2 entry ] + +=head1 Deprecations + +XXX Any deprecated features, syntax, modules etc. should be listed here. + +=head2 Module removals + +XXX Remove this section if inapplicable. + +The following modules will be removed from the core distribution in a +future release, and will at that time need to be installed from CPAN. +Distributions on CPAN which require these modules will need to list them as +prerequisites. + +The core versions of these modules will now issue C<"deprecated">-category +warnings to alert you to this fact. To silence these deprecation warnings, +install the modules in question from CPAN. + +Note that these are (with rare exceptions) fine modules that you are encouraged +to continue to use. Their disinclusion from core primarily hinges on their +necessity to bootstrapping a fully functional, CPAN-capable Perl installation, +not usually on concerns over their design. -We have switched to a hybrid hash function to better balance -performance for short and long keys. +=over -For short keys, 16 bytes and under, we use an optimised variant of -One At A Time Hard, and for longer keys we use Siphash 1-3. For very -long keys this is a big improvement in performance. For shorter keys -there is a modest improvement. +=item XXX + +XXX Note that deprecated modules should be listed here even if they are listed +as an updated module in the L</Modules and Pragmata> section. + +=back + +[ List each other deprecation as a =head2 entry ] =head1 Performance Enhancements -=over 4 +XXX Changes which enhance performance without changing behaviour go here. +There may well be none in a stable release. -=item * New Faster Hash Function on 64 bit builds +[ List each enhancement as a =item entry ] -We use a different hash function for short and long keys. This should -improve performance and security, especially for long keys. +=over 4 -=item * readline is faster +=item * -Reading from a file line-by-line with C<readline()> or C<< E<lt>E<gt> >> should -now typically be faster due to a better implementation of the code that -searches for the next newline character. +XXX =back =head1 Modules and Pragmata -=head2 Updated Modules and Pragmata +XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> +go here. If Module::CoreList is updated, generate an initial draft of the +following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary +for important changes should then be added by hand. In an ideal world, +dual-life modules would have a F<Changes> file that could be cribbed. + +[ Within each section, list entries as a =item entry ] + +=head2 New Modules and Pragmata =over 4 =item * -L<Archive::Tar> has been upgraded from version 2.18 to 2.24. +XXX -=item * +=back + +=head2 Updated Modules and Pragmata -L<B::Debug> has been upgraded from version 1.23 to 1.24. +=over 4 =item * -L<bignum> has been upgraded from version 0.43_01 to 0.47. +L<XXX> has been upgraded from version A.xx to B.yy. -=item * +=back -L<Data::Dumper> has been upgraded from version 2.165 to 2.166. +=head2 Removed Modules and Pragmata + +=over 4 =item * -L<Encode> has been upgraded from version 2.86 to 2.88. +XXX -=item * +=back -L<encoding> has been upgraded from version 2.18 to 2.19. +=head1 Documentation -=item * +XXX Changes to files in F<pod/> go here. Consider grouping entries by +file and be sure to link to the appropriate page, e.g. L<perlfunc>. -L<IO> has been upgraded from version 1.37 to 1.38. +=head2 New Documentation -=item * +XXX Changes which create B<new> files in F<pod/> go here. -L<Locale::Codes> has been upgraded from version 3.40 to 3.42. +=head3 L<XXX> -=item * +XXX Description of the purpose of the new file here -L<Math::BigInt> has been upgraded from version 1.999727 to 1.999806. +=head2 Changes to Existing Documentation -=item * +XXX Changes which significantly change existing files in F<pod/> go here. +However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> +section. + +=head3 L<XXX> -L<Math::BigInt::FastCalc> has been upgraded from version 0.42 to 0.5005. +=over 4 =item * -L<Math::BigRat> has been upgraded from version 0.260804 to 0.2611. +XXX Description of the change here -=item * +=back -L<Module::CoreList> has been upgraded from version 5.20161120 to 5.20161220. +=head1 Diagnostics -=item * +The following additions or changes have been made to diagnostic output, +including warnings and fatal error messages. For the complete list of +diagnostic messages, see L<perldiag>. + +XXX New or changed warnings emitted by the core's C<C> code go here. Also +include any changes in L<perldiag> that reconcile it to the C<C> code. -L<PerlIO::scalar> has been upgraded from version 0.24 to 0.25. +=head2 New Diagnostics + +XXX Newly added diagnostic messages go under here, separated into New Errors +and New Warnings + +=head3 New Errors + +=over 4 =item * -L<Pod::Simple> has been upgraded from version 3.32 to 3.35. +XXX L<message|perldiag/"message"> + +=back + +=head3 New Warnings + +=over 4 =item * -L<POSIX> has been upgraded from version 1.75 to 1.76. +XXX L<message|perldiag/"message"> + +=back + +=head2 Changes to Existing Diagnostics + +XXX Changes (i.e. rewording) of diagnostic messages go here + +=over 4 =item * -L<Test::Simple> has been upgraded from version 1.302062 to 1.302073. +XXX Describe change here + +=back + +=head1 Utility Changes + +XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. +Most of these are built within the directory F<utils>. + +[ List utility changes as a =head2 entry for each utility and =item +entries for each change +Use L<XXX> with program names to get proper documentation linking. ] + +=head2 L<XXX> + +=over 4 =item * -L<Time::HiRes> has been upgraded from version 1.9740_03 to 1.9741. +XXX + +=back + +=head1 Configuration and Compilation + +XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools +go here. Any other changes to the Perl build process should be listed here. +However, any platform-specific changes should be listed in the +L</Platform Support> section, instead. + +[ List changes as a =item entry ]. + +=over 4 =item * -L<Time::Local> has been upgraded from version 1.24 to 1.25. +XXX + +=back + +=head1 Testing + +XXX Any significant changes to the testing of a freshly built perl should be +listed here. Changes which create B<new> files in F<t/> go here as do any +large changes to the testing harness (e.g. when parallel testing was added). +Changes to existing files in F<t/> aren't worth summarizing, although the bugs +that they represent may be covered elsewhere. + +[ List each test improvement as a =item entry ] + +=over 4 =item * -L<Unicode::Collate> has been upgraded from version 1.18 to 1.19. +XXX =back -=head1 Configuration and Compilation +=head1 Platform Support + +XXX Any changes to platform support should be listed in the sections below. + +[ Within the sections, list each platform as a =item entry with specific +changes as paragraphs below it. ] + +=head2 New Platforms + +XXX List any platforms that this version of perl compiles on, that previous +versions did not. These will either be enabled by new files in the F<hints/> +directories, or new subdirectories and F<README> files at the top level of the +source tree. + +=over 4 + +=item XXX-some-platform + +XXX + +=back + +=head2 Discontinued Platforms + +XXX List any platforms that this version of perl no longer compiles on. + +=over 4 + +=item XXX-some-platform + +XXX + +=back + +=head2 Platform-Specific Notes + +XXX List any changes for specific platforms. This could include configuration +and compilation changes or changes in portability/compatibility. However, +changes within modules for platforms should generally be listed in the +L</Modules and Pragmata> section. + +=over 4 + +=item XXX-some-platform + +XXX + +=back + +=head1 Internal Changes + +XXX Changes which affect the interface available to C<XS> code go here. Other +significant internal changes for future core maintainers should be noted as +well. + +[ List each change as a =item entry ] =over 4 =item * -Zero out the alignment bytes when calculating the bytes for 80-bit C<NaN> -and C<Inf> to make builds more reproducible. [perl #130133] +XXX + +=back + +=head1 Selected Bug Fixes + +XXX Important bug fixes in the core language are summarized here. Bug fixes in +files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. + +[ List each fix as a =item entry ] + +=over 4 =item * -Since 5.18 for testing purposes we have included support for -building perl with a variety of non-standard, and non-recommended -hash functions. Since we do not recommend the use of these functions -we have removed them and their corresponding build options. Specifically -this includes the following build options: +XXX + +=back + +=head1 Known Problems + +XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any +tests that had to be C<TODO>ed for the release would be noted here. Unfixed +platform specific bugs also go here. - PERL_HASH_FUNC_SDBM - PERL_HASH_FUNC_DJB2 - PERL_HASH_FUNC_SUPERFAST - PERL_HASH_FUNC_MURMUR3 - PERL_HASH_FUNC_ONE_AT_A_TIME - PERL_HASH_FUNC_ONE_AT_A_TIME_OLD - PERL_HASH_FUNC_MURMUR_HASH_64A - PERL_HASH_FUNC_MURMUR_HASH_64B +[ List each fix as a =item entry ] + +=over 4 + +=item * + +XXX =back -=head1 Acknowledgements +=head1 Errata From Previous Releases + +=over 4 -Perl 5.25.8 represents approximately 4 weeks of development since Perl 5.25.7 -and contains approximately 21,000 lines of changes across 500 files from 19 -authors. +=item * + +XXX Add anything here that we forgot to add, or were mistaken about, in +the perldelta of a previous release. -Excluding auto-generated files, documentation and release tools, there were -approximately 18,000 lines of changes to 340 .pm, .t, .c and .h files. +=back -Perl continues to flourish into its third decade thanks to a vibrant community -of users and developers. The following people are known to have contributed the -improvements that became Perl 5.25.8: +=head1 Obituary -Andy Lester, Aristotle Pagaltzis, Chad Granum, Chris 'BinGOs' Williams, -Christian Hansen, Craig A. Berry, David Mitchell, Hugo van der Sanden, James E -Keenan, J. Nick Koston, Karl Williamson, Matthew Horsfall, Niko Tyni, Petr -Písař, Sawyer X, Steve Hay, Sullivan Beck, Tony Cook, Yves Orton. +XXX If any significant core contributor has died, we've added a short obituary +here. -The list above is almost certainly incomplete as it is automatically generated -from version control history. In particular, it does not include the names of -the (very much appreciated) contributors who reported issues to the Perl bug -tracker. +=head1 Acknowledgements -Many of the changes included in this version originated in the CPAN modules -included in Perl's core. We're grateful to the entire CPAN community for -helping Perl to flourish. +XXX Generate this with: -For a more complete list of all of Perl's historical contributors, please see -the F<AUTHORS> file in the Perl source distribution. + perl Porting/acknowledgements.pl v5.25.5..HEAD =head1 Reporting Bugs |