Can i manage my current 11.0.7200.1147 clients in the new manager 12.1 RU2?
yes , SEPM 12 RU 2 can manage SEP 11 clients
- Will my current policies and settings stays active after migration?
yes, there will not be any change. Except the new one's like downloadinsight and SONAR will be applied as well.
- After migration, will the new management console set the new 'install packages' on all groups? Or better do i need to do this manual, so i can install the new 12.1 ru2 clients in stages for testing purposes, also i need to do this in stages because i have a lot of clients and need to watch the network load.
You need to do it manually by assigning packages to group.