1 new tech, 3 new buildings, 1 new specialist
various corrections and modifications

new Slave unit and Scribe specialist
minor adjustments and corrections

Stopped possibility of goody hut upgrade to advanced tech unit
Fresh water pastures and plantations get extra food earlier

Great prophets loose small amount of religious strength in foreign territory, slowing down religious conversions
Minor adjustments

corrected mistake in new ice cutter building
3 more unique units to make all civs have 2 unique buildings, units or improvements
other minor changes including gold rebalancing

corrected error with world congress after new era introduced

1 new building
new tech, building and unit icon art
a few minor adjustments

Introduced Late Medieval era.
Late game art restricted to medieval (at last!)
Great Prophet spawn rate decreased and other minor adjustments

remaining improvements get enhancing tech
rebalancing of gold/production at end game
other adjustments including tech prereqs

Coal visible with Machinery and required for Foundry
Slave Markets obsolete with Law
Minor adjustments for game balance