Topic: Upgrade from 0.4.2
==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.4.2
- Linux/BSD distribution name and version: CenOS 6 64
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? NO
- Related log if you're reporting an issue:
====
Can I upgrade my iRedMail 0.4.2 to lastest 0.9.4? Is this simple process or hard?
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