[Dovecot] Upgrading from Package on OpenBSD

Hi,

First, let me say I looked for a way to search the archives online but must be missing something. Can someone point me to a URL?

On to the question: I'm currently running dovecot-0.99.14p1 from packages on OpenBSD 3.8. I'm interested in running the latest version. What is the best practice for migrating/upgrading on OpenBSD? Thanks in advance.