[Asterisk-Users] How to upgrade safe?

[Ronald Wiplinger]

*CLI> show version
Asterisk CVS-HEAD-03/13/05-23:38:12 built by root at me on a x86_64 running 
Linux


How can I upgrade safe?
How can I downgrade if something did not work out right?
What should I upgrade?
Where can I read for each package the changes to see if it is worth to 
upgrade?
Is there a security allert somewhere, that informs me, I have to upgrade 
now?


bye

Ronald