On Sun, 2005-04-03 at 23:51 -1000, Warren Togami wrote: > I recall Chip mentioning ABI broke sometime after 5.8.0. Maybe I'm wrong... No, you're right, I forgot. man perl582delta or http://search.cpan.org/dist/perl/pod/perl582delta.pod#Incompatible_Changes FWIW, I don't remember running into this myself nor seeing any related bug reports. The changelog of the perl package does not contain hints of special patches having been applied in the shipped 5.8.1 series packages that would fix the incompatibility. So, 5.8.1 would be a candidate for removal from the compat list, and @INC and friends. All perl-* packages in Rawhide have been built with 5.8.3 or later, and IIRC no perl-* packages have been removed from FC since FC1 (5.8.1) so the removal wouldn't seem to need any actions there. It would affect 3rd party packages and locally installed modules done with 5.8.1 but still in use with current FC4 perl. But that is probably close to an empty set today. Also, the perl-5.8.0's shipped in RHL9 and RHEL3 have quite a few patches applied, including at least some upstream ones (according to the changelog of the package). If some of those patches introduced the binary incompatibility present in upstream 5.8.1, 5.8.0 would be a candidate for removal from the compat lists too.