Here is the Build History of the game passing from the Early Access launch on Steam on February 3, 2015 (January 30, 2015 for Early Access backers) to the official release on January 19, 2016.
3/feb/2015
Build Update #7520 (PC and Mac)
-numerous fixes to improve overall stability
3/feb/2015
Build Update #7527 (PC Only)
-disable video command-line option as potential workaround for PC Players (See this thread http://steamcommunity.com/app/262060/discussions/1/612823460250609966/)
-Can no longer open Options dialog when confirmation dialog is up
-Save games disappearing fix
-You can now back out of obstacles
-Stress bars now round down to the nearest 10
-Hellion's Barbaric Yawp no longer buffs twice
-Various stability fixes
-Brigand Fusiliers are not quite as fiendishly deadly as before
-Brigand Bloodletters are still hulking and menacing, but die a tiny bit more quickly
4/feb/2015
Build Update #7534 (PC only)
-Initialization crash logger "-log_debug_info" to help determine BEX and other launch crashes (See this thread: http://steamcommunity.com/app/262060/discussions/0/612823460253966357/)
-Potential crash workaround "-disableaudio" command-line argument (See this thread: http://steamcommunity.com/app/262060/discussions/1/612823460250609966/)
-Localization crash fix
-Stage coach crash fix
-Better save game file handling
-More stability fixes
5/feb/2015
Build Update #7537 (PC only)
-Game now auto-creates Saved Games directory if it does not exist (potentially fixes BEX crash on launch)
-Fixed add/remove trinket bug
-Added some missing strings
-Tuned down lockjaw disease slightly
6/feb/2015
Build Update #7544 (PC only)
-Fix for certain languages/special characters that was preventing the Saved Games directory from being located and causing the game not to launch
6/feb/2015
Build Update #7547 (PC only)
-More fixes for certain languages/special characters that was preventing the Saved Games directory from being located and causing the game not to launch
-Removed incompatible quirks
-Tuned down reaction act out wait times significantly for better combat flow
-Fix for Sanitarium not removing correct quirk
-Fix for Sanitarium not removing a quirk at all
-Improved stress relief tutorial text
-Rounded up monster HP in tooltip (so monsters don't show 0 HP)
7/feb/2015
Build Update #7560 (PC only)
-Camping skill adjustments (increased Plague Doctor's disease curing ability, corrected and adjusted some skills which were not proc'ing correctly)
-More incompatible quirk updates to reduce conflicting quirks
-Clamp damage as an attempt to blind fix the crazy high damage problem
-Fixed using firewood when in the bark phase of an ambush
-Fixed removing multiple quirks at Sanitarium
8/feb/2015
Build Update #7567 (PC only)
-Crusader upgrade costs fixed
-Crusader equipment costs fixed
-Fix to wrong save loading
-Updated save backups