1.6.5.3
Additions:
- Technological Ascendancy, rare techs twice as likely to spawn (up from 50%)
- Imperial Prerogative gives +5 stability
- Machine cult, robots, ai rights, and cyborgs increase spiritualist attraction instead of materialist
- More traits effect ethic attraction

Tweaks:
- Economic Subsidies gives +10% consumer goods usage (from +15%)
- Universal Transactions gives -50% empire size from branch offices, no longer increases diplo weight
- Tweaks to ai weights for first contact protocols

Bug Fixes:
- Modifiers for high amenities, ext, now properly effect organic pop assembly
- Merc Fleets can use special bombardment types
- Fixed slingshot to the stars not getting additional bonuses

1.6.5.2
Additions:
- New Government: Parliamentary Republic

Tweaks:
- State and Censored Press gives higher stability
- State and Censored Press decreases worker and specialist political power
- Free Press increases ethic shift chance by 20%
- No Union Rights gives +10% worker output
- Limited Union Rights gives +5% worker output, but -5% worker happiness
- Self modified pops who's owner has a homicidal or militaristic civic are guaranteed to have the very strong trait
- Dictatorial, Imperial, and Private authorities give +1 ruler political power

Bug Fixes:
- Self modified pops get hive mind trait if owner is a hive mind
- Fixed arthropoid rulers not having extra food upkeep

1.6.5.1
Bug Fixes:
- Burrowing and Regenerative Tissue available to Lithoids
- Fixed void dwellers not getting void dweller trait
- Machine Cults cannot be taken with Shroudwalker Origin
- Fixed Localization Error

1.6.5
Additions:
- Progenitor Hive, speed malus does not effect civilian vessels
- Many (but not all) buildings will be automatically sorted
- Zombies produce -2 food from livestock
- Liberation and Defensive Wars Only policy decreases border friction
- Harmonious Directives gives +100 edict capacity (from +50)
- Fortress Doctrine increases difficulty of all hostile sabotage operations
- Entente Coordination gives +10% sublight speed in federation space
- Diplomatic Networking gives +10 base intel
- Enigmatic Engineering increases sensor range and difficulty of hostile subterfuge operations
- World Shaper increases terraforming speed by 25%
- World Shaper, terraformed worlds gain +1 district slots, +10% habitability, and +10% resources from jobs
- Galactic Force Projection gives +25% naval capacity instead of a flat +80)
- Defender of the Galaxy also increases damage against marauders and leviathans
- Defender of the Galaxy, mutually exclusive with Become the Crisis
- Interstellar Dominion gives +25% bonuses
- Eternal Vigilance, +25% fire rate in home territory
- Executive Vigor, -20% Campaign Upkeep
- Shared Destiny also reduces border friction
- Imperial Prerogative, +10% resources from jobs in core worlds
- Universal Transactions, +25% diplo weight from economy
- Overlord Garrisons spawn 6 Garrison armies

Bug Fixes:
- Fixed artisans incorrectly costing food
- Fixed bug with Consecrated World decision
- Fixed localization errors
- Updated subterranean code for 3.4.5