http://dovecot.org/test/

• Added mbox_dirty_syncs setting, defaulting to yes. This means that while mbox is opened and new mails come, it only reads the new mails instead of the whole mbox. Then there's several checks that make sure this is safe to do and if something doesn't look right it fallbacks to syncing the whole mbox again.
• dovecot-auth was leaking memory (not same bug as with 0.99/ldap)
• Some other fixes