My current setup is exchange server CU15(Version 15.0 (Build 1156.6)) ( two MBx, two CAS in primary site) (one MBX, one CAS in DR site).
Planning to update exchange CU22. I have some queries in this update..
1) Anybody please tell any known issues in patch CU22.
2) is it ok to directly upgrade exchange cu15 to exchange cu22.
3) Also tell me the server order to be patched.
Please advice...