* 004: 14.0-CURRENT after kernel interfaces for dispatching cryptographic operations were changed.

* 008: 14.0-CURRENT after changing the internal KAPI between the krpc and NFS modules.

* 010: 14.0-CURRENT after changing the sndstat(4) ioctls nvlist schema and definitions.

* 022: 14.0-CURRENT after commit e1a907a25cfa changed the internal KAPI between the krpc and nfsserver modules.

* 026: 14.0-CURRENT after changing the internal KAPI between the nfscommon and nfsd modules.

* 037: 14.0-CURRENT after removal of thread argument from VOP_STAT(9) and fo_stat.

* 043: 14.0-CURRENT after removing the unused thread argument from NDINIT(9).

* 054: 14.0-CURRENT after changing irq_work_queue to return a bool in LinuxKPI to match 5.10 API.

* 062: 14.0-CURRENT after struct kinfo_file changes.

* 086: 14.0-CURRENT after vn_lock_pair() argument changes.

See:

* https://docs.freebsd.org/en/books/porters-handbook/versions/

Kernel APIs are also part of the stability guarantee (unlike Linux).