Full wipe is always recommended. You may be able to get away with a system wipe only.
Download speeds are limited to 250kbs via HTTP as the files are hosted on this server. There are no limits on the torrent. It is hosted on a 10Gbps shared Seedbox in Holland/NL
OTA will be going live via the next update. Apologies it’s not in this one, a slight oversight was made. There is a fix below for anyone who desperately wants it now and going from v2.0 to v2.0.1.
I will NOT be creating an CM12 Lollipop based ROM until CyanogenMod release a stable build. Please don’t ask. It’s better to wait until builds are stable and we have all our features we’re accustomed to with CyanogenMod.