I think Luke-Jr is planning to release support soon but as far as I know right now you need to build the "compac" branch on his github if you want compac support on bfgminer.
Yep, I'll try to get 5.3.0 released before any deliveries take place.
Note I merged and deleted the "compac" branch, so just the main "bfgminer" branch is fine now.
Windows users can get git-built bleeding-edge binaries from:
http://luke.dashjr.org/tmp/code/webisect/webisect.php?dobuild=bfgminer