Please, check article http://kb.parallels.com/en/112790 for details.
– plesk_agent_manager.exe fails with unknown error if some of dependant module of psarepository.dll has been changed to binary incompatible version.
– problem with displaying Polish locale in hosting panel.
– plesk_agent_manager.exe fails with unknown error if some of dependant module of psarepository.dll has been changed to binary incompatible version.
– problem with displaying Polish locale in hosting panel.
Plesk Panel 10.3.1 MU#14 for Linux and Windows
[-] Parallels Plesk Panel removes the current license key during an upgrade license key.
[-] (Windows only) Microupdates will not be installed if Tomcat(JRE) has been installed before upgrade to Parallels Plesk Panel 10.x version.