NPC raid sizes now scale not just with base value but also how many of them you've killed and how often you've raided their bases. Endgame raids can scale to pretty extreme levels so make sure you keep expanding and improving your defenses.
NPC raids will now include riflemen that will shoot at you and your turrets
Radar Turrets and Radar Grenades can now detect NPCs
Radar Grenades now release 3 radar pulses over time instead of just 1
Tweaks and Fixes
reduced the amount of resources produced by nodes
improved melee sound effects from Raider NPCs
NPCs are now more CPU efficient and cause less lag
turrets now have improved aim when shooting at NPCs