If your already running a recent version of cm7 on your bolt then there's no need to wipe.
Friday, July 29, 2011
@LayherDaddy has released the newest cyanogenmod for the thunderbolt. This release features android 2.3.5 gingerbread. Check out the htc thunderbolt page for a link to this and the latest gapps or check out the new cyanogenmod section in rom manger.
Friday, July 8, 2011
Well finally an official MR2 update has started to roll out. @teamandirc got his hands on it a little early and a rooted version has been created. In my opinion, the best feature from this OTA is the new radio. It will work on any gingerbread rom, like Das BAMF 3.0, so there is no need to flash leaked radios anymore. Check out the link below for the full rooted rom and radio.
Update: Radio Pack is now updated to include this radio.