Plesk MU#32 is out and it appears to be particularly important according to the RSS feed, where critical vulnerabilities discovered via an internal audit are mentioned.

(there's no info on MU#32 in the main Plesk changelog - it only mentions MU#31 which does not appear to actually be available, at least for EL6).

Note that MU#32 removes any customisation you may have made to /etc/xinetd.d/smtp[s]_psa so if you use spamdyke you'll need to re-add it.

No visible problems with qmail-scanner, thankfully.

EDIT: Err, although this is a security alert given the hints in the RSS feed, maybe I should have posted it in the Control Panel section and not here. I won't be offended if it is moved.

Parallels Plesk Panel 10.4.4 MU#32
http://kb.parallels.com/en/113957

[-] Critical vulnerability found during internal audit (107806)
[-] Vulnerability in SSO relay has been fixed (CVE-2011-4776) (108408)
[-] Plesk 10.4.4 loses connection to MySQL on statistics run - MySQL server has gone away (98708)
[-] Wrong validation in RuCenter's domain registration form (108819)

Buffer overrun maybe?