[Dovecot] dovecot for centos ?

Hello all,

I was wondering which version is better for Centos v6.x.

CentOS v6.5 comes with dovecot v2.0.9 as default. Should I go ahead with this or go for the latest ? (v2.2.10 / v2.211 / v2.2.12, btw what's the diferrence between the three ?)

s.