[Dovecot] dovecot 0.99.xx to 1.0-stable how-to?

[Rich West]

I realize that there have been some big changes in features and 
configuration file settings between 0.99.xx and 1.0-stable, so when I 
went to perform an upgrade on our testing server, I carefully combed 
through the configuration files and matched up everything I could.

I fired up dovecot-1.0-stable and was pleased to see that it was happily 
running.  I attempted to connect to it, and discovered that it wasn't 
listening to any ports.. then I realized that the app had crashed due to 
a typo in the config file (oops).  Fixed that, started it up, and it was 
happily running and listening.

However, it wouldn't authenticate any users..  Backing down to the 
0.99.14 version that we had installed allowed for authentication 
(against ldap) to work just fine..

Is there anything that I should be looking for within the 
dovecot-1.0-stable that is dramatically different in regards to user 
authentication?

-Rich