Debian has moved Apache2::Reload to libapache2-reload-perl due to recent upstream changes to the release candidate of libapache2-mod-perl2 (2.0.4 rc1, "Works with Perl 5.10").

I discovered this as evatt.com went down for about ten minutes after a system upgrade because of the missing module.

Apache2::Reload reloads Perl modules that have been modified since the last time they have been used. It is invaluable when writing mod_perl code. For performance reasons, it is best practice to only use this module on development servers. I had forgotten I had configured this module into my Apache2 configuration. I should disable it on this server.