Question [Q][ROM][4.4.2 CM-11.0][Cyanogenmod 11.0 Unofficial][KVT49L]

I am using this ROM on my TF201, but I have an older build. Do I have to clear all the caches etc to install the new one (and reinstall Google Apps), or can I just flash the latest one?

Will it wipe everything anyway?

Thanks.

Chris.