salt-minion --version
salt-minion 2014.1.7

salt-master --version
salt-master 2014.1.7

2014-09-08 17:02:43,764 [salt.crypt       ][ERROR   ] The master key has changed, the salt master could have been subverted, verify salt master's public key
2014-09-08 17:02:43,765 [salt.crypt       ][CRITICAL] The Salt Master server's public key did not authenticate!
The master may need to be updated if it is a version of Salt lower than 2014.1.7, or
If you are confident that you are connecting to a valid Salt Master, then remove the master public key and restart the Salt Minion.
The master public key can be found at:
/etc/salt/pki/minion/minion_master.pub