[wp-hackers] Mass upgrade question

[Scot Hacker]

A question for those of you who have written shell (or other) scripts  
to perform mass upgrades of client WP installations: Do your scripts  
also attempt to trigger wp-admin/upgrade.php after updating, or do  
you generate an email telling the user to do that (with link)?

If upgrade.php isn't run soon after the file upgrade is completed, is  
there any danger of the public site not displaying correctly?

Also, a policy question: Do you let clients opt-in to having their  
blogs automatically upgraded when new releases come out, or do you  
simply upgrade all client installations automatically for security  
reasons?

Thanks,
Scot