I just upgraded without doing fullwipe and all seems work OK.
1. I downloaded CM11 nightly and GAPSS for it posted earlier
2. flash from CWM CM11 nightly
3. flash from CWM GAPPS
Hi, without wipe? and what recovery did you used?...
First CM11 nightly is out :D http://download.cyanogenmod.org/?device=i9300&type=
What GAPPS we should use?
I saw it. did you tried to install it?
Problem with lockscreen. Time to time i can´t open device - device not reacting to touch on screen.