Pueden actualizarlo desde el panel de control o desde el S.O. como root.
Corrige algunos errores de la versión 9.2, sobre todo en el uso de Postfix como MTA.
What's New
Parallels Plesk Panel 9.2.3
[+] Fedora 11 - Parallels Plesk Panel is compatible with new Fedora OS.
[+] Improved Updates - Improved updates functionality provides you with quicker and well-timed hotfixes and component updates.
[-] DomainKeys adding an improper comment header to e-mail messages bug is fixed.
[-] Inability to update httpd on CentOS 5 and RHEL 5 if psa-tomcat-configurator is installed bug is fixed.
[-] Web applications crashing because php.ini was not preconfigured for FastCGI bug is fixed.
[-] High CPU load caused by authpsa processes bug is fixed.
[-] Passwords of similar e-mail aliases being updated unintentionally bug is fixed.
[-] Tomcat Java applications not working after the upgrade bug is fixed.
[-] Domains that exceeded resource limits are not suspended on servers with a lot of domains bug is fixed.
[-] Statistics utility failing with segmentation fault on openSUSE 10.3 bug is fixed.
[-] Mail queue utility mailqueuemng only lists messages from deferred queue when Postfix mail server is used bug is fixed.
[-] Files processed by mail handlers are created with random permissions bug is fixed.
[-] Mail forwarding not working and reporting broken pipe error when Postfix mail server is used bug is fixed.
[-] Local mail delivery not working when Qmail mail server is used bug is fixed.
[-] Inability to switch default interface language to another language if Parallels Plesk Panel license key has zero additional languages bug is fixed.
[-] Mail malfunctioning due to buffer length limitation in spam handlers bug is fixed.
[-] Postfix mail server crashing with segfault error on processing messages with strings larger than 4096 characters bug is fixed.
[-] High CPU load caused by relaylock processes bug is fixed.
[-] No support for UI pointers in root.controls.lock file bug is fixed.
[-] Old credentials still working and error displayed in the Panel if mail name and password are changed at the same time bug is fixed.
[-] Automatic removal of mailing lists with names similar to the one actually being removed (or disabled) on qmail bug is fixed.
[-] Messages sent to a non-existent user locally (with transport other than SMPTP) were stuck in mail queue instead of being rejected on Postfix bug is fixed.
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[+] new feature
[-] bug fixed or removed[*] bug fixed and improvement made
P.D. Muy recomendable para los que usen postfix como MTA, actualización probada varios servidores sin problemas, pero por si acaso primero una copia de seguridad total del servidor es lo más aconsejable.