==== Required information ====
- iRedMail version: 0.8.3
- iRedAdmin Pro 1.5.0
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: CentOS 5.6
- Related log if you're reporting an issue:
====
Hi,
It's safe to upgrade Centos to v. 6.x from my 5.6 ?