diff options
| -rw-r--r-- | pod/perldelta.pod | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/pod/perldelta.pod b/pod/perldelta.pod index ac1cd1126a..cf78e266a8 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -43,6 +43,16 @@ written for platforms that support locales can run on locale-less platforms without change. Attempts to change the locale away from the "C" locale will, of course, fail. +=head2 PERL_DEBUG_READONLY_COW + +On some operating systems Perl can be compiled in such a way that any +attempt to modify string buffers shared by multiple SVs will crash. This +way XS authors can test that their modules handle copy-on-write scalars +correctly. See L<perlguts/"Copy on Write"> for detail. + +This feature was actually added in 5.19.8, but was unintentionally omitted +from its delta document. + =head1 Security XXX Any security-related notices go here. In particular, any security @@ -180,13 +190,15 @@ 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> +=head3 L<perlguts> =over 4 =item * -XXX Description of the change here +New sections on L<Read-Only Values|perlguts/"Read-Only Values"> and +L<Copy on Write|perlguts/"Copy on Write"> have been added. They were +actually added in 5.19.8 but accidentally omitted from its delta document. =back |