FreeBSD/src 2df45ae (r336353) — sys/conf Makefile.amd64 Makefile.arm, usr.sbin/config configvers.h
config(8): Bump major version after r335998 config-generated hints.c/env.c from r335998 and later are incompatible with earlier kernels due to no longer setting envmode/hintmode. A minor bump for this is insufficient, as matching major version with a later minor version is still viewed as backwards-compatible. This was an MI kernel change, soo all VERSREQ's are bumped.
