Version 2016.3.7 is a bugfix release for 2016.3.0.
New master configuration option allow_minion_key_revoke, defaults to True. This option controls whether a minion can request that the master revoke its key. When True, a minion can request a key revocation and the master will comply. If it is False, the key will not be revoked by the msater.
Docs for previous releases are available on readthedocs.org.
Latest Salt release: 2016.11.4