Trade Cogs generate less gold per trip to offset the speed bonus and keep the gold generation in line with other civilizations.
Initially, Stable units cost -20% starting from the Castle Age. With patch 4.8, the cost is now staggered to -15%/-20% in the Castle/Imperial Age.
Initially cannot research Ring Archer Armor. With patch 4.8, it was added to their technology tree.
Initially, Kasbah increases not only the team Castles' working speed by 25%, but also the Castles of the researching player by another +25% (resulting in a total +56.25% bonus). With patch 4.8, Kasbah only affects the researching player's Castles once.
Non-Elite Genitours initially have 4 attack and 3 range. With patch 4.8, they have 3 attack and 4 range.