We have just released COMODO Internet Security CIS 4.0.138377.779. This is a maintanence release which addresses some issues.
What’s New in CIS 4.0.138377.779?
FIXED! Defense+ registry protection misses some keys in Classes root hive
FIXED! Cfp.exe crashes while showing realtime virus detection alerts under certain conditions
FIXED! Cfp.exe sometimes shows wrong sandboxed process notifications
FIXED! Sandboxed IE8 can not save bookmarks
FIXED! Some virtualized programs do not read/write registry keys properly
FIXED! Some sandboxed applications do not disappear in active process list
FIXED! CIS4 does not handle RDP session switching properly
FIXED! Firewall rules can not be deleted under certain conditions
Updated fine here as usual. The only problem I ever had was the first time I got an update and all my rules disappeared and had to be relearned. That was way back when I went from 3.8 to 3.9, no problems updating since then.