=head1 Platform Specific Notes
-XXX Any changes specific to a particular platform. VMS and Win32 are the usual
-stars here. It's probably best to group changes under the same section layout
-as the main perldelta
+=head2 Recent OpenBSDs now use perl's malloc
+
+OpenBSD > 3.7 has a new malloc implementation which is mmap based and as such
+can release memory back to the OS; however for perl using this malloc causes
+a substantial slowdown so we now default to using perl's malloc instead
+(RT #75742) (9b58b5).
=head1 Obituary