perldelta for 3f7602fa4cd6

[perl5.git] / pod / perldelta.pod

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index cf5a729..cdcaba0 100644 (file)
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -5,13 +5,16 @@
 [ 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 v5.21.0
+perldelta - what is new for perl v5.21.2
 
 =head1 DESCRIPTION
 
-This document describes differences between the 5.21.0 release and the 5.20.0
+This document describes differences between the 5.21.1 release and the 5.21.2
 release.
 
+If you are upgrading from an earlier release such as 5.21.0, first read
+L<perl5211delta>, which describes differences between 5.21.0 and 5.21.1.
+
 =head1 Notice
 
 XXX Any important notices here
@@ -32,6 +35,16 @@ L</Selected Bug Fixes> section.
 
 [ List each security issue as a =head2 entry ]
 
+=head2 Perl is now always compiled with -D_FORTIFY_SOURCE=2 if available
+
+The 'code hardening' option called C<_FORTIFY_SOURCE>, available in
+gcc 4.*, is now always used for compiling Perl, if available.
+
+Note that this isn't necessarily a huge step since in many platforms
+the step had already been taken several years ago: many Linux
+distributions (like Fedora) have been using this option for Perl,
+and OS X has enforced the same for many years.
+
 =head1 Incompatible Changes
 
 XXX For a release on a stable branch, this section aspires to be:
@@ -116,7 +129,15 @@ XXX
 
 =item *
 
-L<XXX> has been upgraded from version A.xx to B.yy.
+L<Math::BigInt> has been upgraded from version 1.9995 to 1.9996.
+
+Correct handling of subclasses.
+L<[cpan #96254]|https://rt.cpan.org/Ticket/Display.html?id=96254>
+L<[cpan #96329]|https://rt.cpan.org/Ticket/Display.html?id=96329>
+
+=item *
+
+L<Module::CoreList> has been upgraded from version 5.021001_1 to 5.021002.
 
 =back
 
@@ -189,7 +210,12 @@ XXX L<message|perldiag/"message">
 
 =item *
 
-XXX L<message|perldiag/"message">
+L<Argument "%s" treated as 0 in increment (++)|perldiag/"Argument "%s" treated
+as 0 in increment (++)">
+
+(W numeric) The indicated string was fed as an argument to the C<++> operator
+which expects either a number or a string matching C</^[a-zA-Z]*[0-9]*\z/>.
+See L<perlop/Auto-increment and Auto-decrement> for details.
 
 =back
 
@@ -208,7 +234,7 @@ XXX Describe change here
 =head1 Utility Changes
 
 XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here.
-Most of these are built within the directories F<utils> and F<x2p>.
+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
@@ -302,9 +328,12 @@ L</Modules and Pragmata> section.
 
 =over 4
 
-=item XXX-some-platform
+=item Solaris
 
-XXX
+Builds on Solaris 10 with C<-Dusedtrace> would fail early since make
+didn't follow implied dependencies to build C<perldtrace.h>.  Added an
+explicit dependency to C<depend>.
+L<[perl #120120]|https://rt.perl.org/Ticket/Display.html?id=120120>
 
 =back
 
@@ -320,7 +349,12 @@ well.
 
 =item *
 
-XXX
+The following private API functions had their context parameter removed,
+C<Perl_cast_ulong>,  C<Perl_cast_i32>, C<Perl_cast_iv>,    C<Perl_cast_uv>,
+C<Perl_cv_const_sv>, C<Perl_mg_find>,  C<Perl_mg_findext>, C<Perl_mg_magical>,
+C<Perl_mini_mktime>, C<Perl_my_dirfd>, C<Perl_sv_backoff>, C<Perl_utf8_hop>.
+
+Users of the public API prefix-less calls remain unaffected.
 
 =back
 
@@ -375,7 +409,7 @@ here.
 
 XXX Generate this with:
 
-  perl Porting/acknowledgements.pl v5.21.0..HEAD
+  perl Porting/acknowledgements.pl v5.21.1..HEAD
 
 =head1 Reporting Bugs