Zend Server on Ubuntu 12.04 Precise – @Zend responded “NO ETA”
I have contacted Zend founder Zeev and a friend of mine who have 2 servers running Zend Server Enterprise contacted Zend support.
The official response right now it: There is no ETA but because of the big interest we are looking at it.
I have checked the fix provided on Zend Forums (link) and using it it works, but you can not use imap any more, so if you have an applicaiton that uses it, dont install it.
But what I did found interesting is that the problem only occurs when you re enable Zend repositories after the upgrade, so if you made the upgrade to Ubuntu Precise with Zend Server installed you can continue to use it, just leave the repositories off.
In any case my advice is NOT to update to the new Ubuntu untill this is sorted out or to switch to a different LAMP stack.