Flashed it 2 hours ago. Was using 9.11.
Wiped cache and dalvik cache
flashed rom 9.15
rebooted
Went ok, but missing gmail, so,
flashed gapps and reboot.
All working well.
Lockscreen shortcuts can be changed now.
Looks like more cyanogen settings are available.
Battery-life with 9.11 was perfect...