X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/0aa1826c09de34f9dda9874230159d250138c38e..cd1dc8e2c73be346de250a16f103fb9a97814dd3:/pod/perldelta.pod

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 4cdfafd..a420c09 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -5,15 +5,15 @@
 [ 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 v5.21.4
+perldelta - what is new for perl v5.21.5
 
 =head1 DESCRIPTION
 
-This document describes differences between the 5.21.3 release and the 5.21.4
+This document describes differences between the 5.21.4 release and the 5.21.5
 release.
 
-If you are upgrading from an earlier release such as 5.21.2, first read
-L<perl5213delta>, which describes differences between 5.21.2 and 5.21.3.
+If you are upgrading from an earlier release such as 5.21.3, first read
+L<perl5214delta>, which describes differences between 5.21.3 and 5.21.4.
 
 =head1 Notice
 
@@ -27,6 +27,21 @@ here, but most should go in the L</Performance Enhancements> section.
 
 [ List each enhancement as a =head2 entry ]
 
+=head2 Perl now supports POSIX 2008 locale currency additions.
+
+On platforms that are able to handle POSIX.1-2008, the
+hash returned by
+L<C<POSIX::localeconv()>|perllocale/The localeconv function>
+includes the international currency fields added by that version of the
+POSIX standard.  These are
+C<int_n_cs_precedes>,
+C<int_n_sep_by_space>,
+C<int_n_sign_posn>,
+C<int_p_cs_precedes>,
+C<int_p_sep_by_space>,
+and
+C<int_p_sign_posn>.
+
 =head1 Security
 
 XXX Any security-related notices go here.  In particular, any security
@@ -89,7 +104,14 @@ There may well be none in a stable release.
 
 =item *
 
-XXX
+C<length> is up to 20% faster for non-magical/non-tied scalars containing a
+string if it is a non-utf8 string or if C<use bytes;> is in scope.
+
+=item *
+
+Non-magical/non-tied scalars that contain only a floating point value and are
+on most Perl builds with 64 bit integers now use 8-32 less bytes of memory
+depending on OS.
 
 =back
 
@@ -119,41 +141,9 @@ XXX
 
 =item *
 
-L<XXX> has been upgraded from version A.xx to B.yy.
-
-=item *
-
-L<File::Find> has been upgraded from version 1.27 to 1.28.
-C<find()> and C<finddepth()> will now warn if passed inappropriate or
-misspelled options.
-
-=item *
-
-L<B::Concise> has been upgraded from version 0.992 to 0.993.
-
-=item *
-
-L<HTTP::Tiny> has been upgraded from version 0.047 to 0.048.
+L<Module::CoreList> has been upgraded from version 5.20140920 to 5.20141020.
 
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.021003 to 5.021004.
-
-=item *
-
-L<POSIX> has been upgraded from version 1.42 to 1.43.
-
-=item *
-
-L<Pod::Perldoc> has been upgraded from version 3.23 to 3.24.
-
-=item *
-
-L<constant> has been upgraded from version 1.31 to 1.32.
-
-=item *
-
-L<threads> has been upgraded from version 1.95 to 1.96.
+Updated to cover the latest releases of Perl.
 
 =back
 
@@ -357,9 +347,7 @@ well.
 
 =item *
 
-The parser no longer gets confused by C<\U=> within a double-quoted string.
-It used to roduce a syntax error, but now compile it correctly.
-[perl #80368]
+XXX
 
 =back
 
@@ -376,12 +364,6 @@ files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>.
 
 XXX
 
-=item *
-
-Compile-time checking of constant dereferencing (e.g.,
-C<< my_constant->() >>) has been removed, since it was not taking
-overloading into account.  [perl #69456] [perl #122607]
-
 =back
 
 =head1 Known Problems
@@ -409,6 +391,13 @@ XXX
 XXX Add anything here that we forgot to add, or were mistaken about, in
 the perldelta of a previous release.
 
+=item *
+
+SVs of type SVt_NV are now bodyless when a build configure and platform allow
+it, specifically C<sizeof(NV) <= sizeof(IV)>. The bodyless trick is the same one
+as for IVs since 5.9.2, but for NVs, unlike IVs, is not guarenteed on all
+platforms and build configurations.
+
 =back
 
 =head1 Obituary
@@ -420,7 +409,7 @@ here.
 
 XXX Generate this with:
 
-  perl Porting/acknowledgements.pl v5.21.3..HEAD
+  perl Porting/acknowledgements.pl v5.21.4..HEAD
 
 =head1 Reporting Bugs