RC4->RC5 and dovecot ?

[DecIRC]

Dear,

I've installed RC4.
Then I've made some modifications to secure it like

http://www.isp-control.net/documentation...ore_secure

then I've replaced courier by dovecot following

http://www.isp-control.net/documentation...th_dovecot

But now, it's time to make an upgrade to RC5.
Is there a danger ?

Regards
Cedric