Update to 3.0.5
*  If you don't have permission to set a flag, it will now appear unchangeable in the UI. (Bug 433851)
* If you were running mod_perl, Bugzilla was not correctly closing its connections to the database since 3.0.3, and so sometimes the DB would run out of connections. (Bug 441592)
* The installation script is now clear about exactly which Email:: modules are required in Perl, thus avoiding the problem where emails show up with a body like SCALAR(0xBF126795). (Bug 441541)
* email_in.pl is no longer case-sensitive for values of @product. (Bug 365697)
Also addresses a new security issue:
http://www.bugzilla.org/security/2.22.4/

(adrianp)