it's the same old story but i have a specific doubt on AOS refresh mechanism.
This is the case: i have an AX 2012 application with two or more AOSes in LIVE Env. and i need to install an HotFix.
My Customer have an high number of plant around the world and cannot stop all the AOSes.
After restart of the AOS service the application cache is refreshed and...?
Every night at midnight (is still valid?)
I don't think that the cache of application objects is refreshed periodically. You must handle that when deploying new application code.