The only changes I've spotted are in the list of affiliated airlines on which travel is allowed - Rule 4(j)
AA Affiliates changed from
American Eagle (Operated by Envoy Airlines, Republic Airlines, SkyWest Airlines, and ExpressJet Airlines) and American Connection (operated by Chautauqua Airlines)
To
American Eagle (Operated by Envoy Airlines, Republic Airlines, SkyWest Airlines, and ExpressJet Airlines, Mesa Airlines and Compass Airlines)
JL Affiliates changed from
J-Air / JAL Express
To