- Update head to 13.0-CURRENT.
- Bump MACHINE_TRIPLE, TARGET_TRIPLE, FBSD_MAJOR, FBSD_CC_VER, FREEBSD_CC_VERSION, OS_VERSION.
- Update comment in UPDATING regarding debugging options.
- Remove debug.witness.trace=0 from installation media.
- Bump __FreeBSD_version.
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation