=over 4
-=item XXX-some-platform
+=item Mac OS X
-XXX
+Perl's build and testing process on Mac OS X for C<-Duseshrplib>
+builds is now compatible with Mac OS X System Integrity Protection
+(SIP).
+
+SIP prevents binaries in F</bin> (and a few other places) being passed
+the C<DYLD_LIBRARY_PATH> environment variable. For our purposes this
+prevents C<DYLD_LIBRARY_PATH> from being passed to the shell, which
+prevents that variable being passed to the testing or build process,
+so running C<perl> couldn't find F<libperl.dylib>.
+
+To workaround that, the initial build of the F<perl> executable
+expects to find F<libperl.dylib> in the build directory, and the
+library path is then adjusted during installation to point to the
+installed library.
+
+[perl #126706]
=back
=item *
-XXX
+L<SDBM_File> is now more robust with corrupt database files. The
+improvements do not make SDBM files suitable as an interchange format.
+[perl #132147]
=back