An experimental version of ATC 0.6 is available in the nightly branch. As the name implies, this version hasn't been thoroughly tested, may contain game breaking bugs, and a few of the new features are still quite bare-bone (the diplomatic menu for instance).
Also note that 0.5x savegames are NOT compatible with 0.6.
Changelog
A full overview will be written when the version is officially released. Depending on feedback, and reports, it will take between 1 and 2 weeks.
+ Balance: Unspent points are converted into money at the start of the game (points left x2)
+ Balance: Added "slow paced" difficulty level (events are 50% less frequent)
+ Balance: Destroying a trade caravan will damage your reputation with the owner massively
+ Balance: Water collector hauling jobs have a higher priority
+ Balance: Added one-time high-chance early game recruitment event (to speed up growth a bit)
+ Content: Proper "New Game" menu allowing to select a location from the overworld
+ Content: Option to spawn a bunker underground filled with angry people and loot
+ Content: Added 4 standard factions
+ Content: Can bribe or anger other factions through faction menu (require Radio tech)
+ Content: Option to ask non hostile factions to send trading caravans your way (require Radio tech)
+ Content: Option to ask bandits not to raid you in exchange for a bribe
+ Content: Added faction specific raid event (only trigger when a standard faction is hostile)
+ Engine: Ability to spawn buildings with specific mobs
+ Engine: World map generator
+ Graphics: Slightly improved some particle effects (fire, smoke, bullet trail)
+ Graphics: New assets for the characters' faces in the tutorial
+ Graphics: Added graphical setting to toggle blood splatters on/off
+ Graphics: Added graphical setting for brighter nights
+ ProcGen: Custom map generator for suburbs can generate L shaped maps
+ ProcGen: Maps without roads and outside of the city may feature mountains (full game only, alpha feature)
+ UI: The UI no longer exits placement mode after setting up a wall or an area to raze/cancel/repair (it acts the same as with furniture, right click to exit)
+ UI: The game remembers the last tab used in the building menu
+ UI: Added button to access world map
+ UI: Added tips about electricity when starting underground
+ UI: Faction menu overhaul
+ UI: Keyboard shortcut to toggle between combat and standard UI (default F5)
+ UI: The default rotation behavior when placing furniture is to rotate by 45°, holding [shift] will rotate by 1° now
+ UI: Added money information to the overlay in top left
+ UI: Outdated savegames can be selected ingame for deletion
+ Fixed: "% Full" overlay was shown over foreign trading jeeps
+ Fixed: Speed Up / Down shortcuts not always properly working in Combat mode
+ Fixed: It was possible to move the camera when the game is hard paused (menu) causing rendering glitches
+ Fixed: A case in which manipulating the start and settings menus in a specific way would cause problems
+ Fixed: Regression bug in 0.5.9 causing menu tooltips to go missing after switching in/out of combat mode
+ Fixed: Another case where the settlers would keep going to (0,0)
+ Fixed: Map generator unable to generate maps with L-shaped or dead-end roads
+ Fixed: Some issues with the underground bunker generation could lead to a broken electrical grid, making survival very difficult.
+ Fixed: Bug that would prevent people coming back from an expedition from being fully recognized until the game is saved and reloaded
+ Fixed: Minor issues with the underground bunker
+ Fixed: Tweaked tutorial part about equipping armors
+ Fixed: Tutorial data not properly reset when launching it multiple times in a row