- Prune svn:mergeinfo from the new branch, as nothing has been merged here.
- Remove debugging from GENERIC* kernel configurations
- Enable MALLOC_PRODUCTION
- Default dumpdev=NO
- Remove UPDATING entry regarding debugging features
- Switch 12.0 from -ALPHA10 to -BETA1 to prepare for builds.
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation