Fixes & Tweaks :

• turns autolaunch off after invasion/defect/trade star
• fixed bug where game always opened planet data screen with sol, even if it had been invaded/traded
• fixed slider cras on trade screen introduced in 1.02.40.
• fixed a bug where fleets had flaky hit detection if they were moving off screen
• ships on auto attack get dest cancelled after peace treaty now
• sector sweep, etc, cancelled when you trade a ship
• minimap refreshes when ship moves even when zoomed now
• AI improved in trading
• AI Starbase tactics improved
• AI battle tactics improved
• AI at "Intelligent" level or higher harder
• AI at "sub-normal" or lower is now easier
• Fundamentally better AI overall (not harder, but more intelligent).

For a complete history of update/fixes check here