Days Gone Update 1.50 brings with it the highly requested New Game+ mode along with the final DLC challenge plus some various new trophies, fixes, and more.

Days Gone Update 1.50 details:

Black Friday” is our FINAL free DLC challenge! Head back to Lumber Mill and take on a never-ending Horde with a time limit. Use Freaker ears to purchase weapons, equipment, skills, and more! (Unlocks today!)
Try your chance at the surprise box for a random chance to get anything from a SAF to our new gun, the Growler.
Plan your routes so you can go back and collect ears from horde you killed, don’t leave yourself with no ears or ammo. Be patient, you can’t keep a combo going if you are dead.
A reminder that all the challenges we release are planned to stay unlocked indefinitely.
New Game+ is finally here! Here is the PlayStation blog post highlighting New Game+.
What transfers over from a story completed game save
Bike Skins and Parts
Unlocks after acquiring the bike from Manny in “Drifters Up On the Mountain”
Encampment Trust and Credits
Health/Stamina/Focus upgrades
Trophy progress
NERO Injectors
What does not transfer over to New Game+
Crafted items
Materials/crafting items
Freaker Ears
Animal Meat
Players will receive this gun in their “Gun Locker” when starting the mission “Drifters Up On the Mountain”.
6MM ammo
EDT Dart (Stuns the enemy)
X34 Dart (Leaves a poisonous gas cloud)
Explosive Dart (Goes boom)
Two new bike decalsSyphon Filter
Horizon Zero Dawn GI
New Set of DLC trophies

Note that the trophy “2 Days 2 Done” will only unlock if you complete Hard II/Survival II in
New Game+ Mode. Increased Horde Movement on Hard mode and above
Two new difficulties
Hard II
Survival II
Progression Blockers
The player should be able to move the car properly in “What Kept Me Going”
The rock item should be useable as intended in “Not Going to Kill Anyone”
The button prompt should appear when next to the car in “I Say We Head North”
General Fixes
General fixes to audio that apply to story mode and challenge mode
Adjusted the pathing on the Horde on multiple challenges
General fixes to the Auto-Complete QTE feature
Motion Sensor Function Aiming sensitivity has been increased when set to 6 and above.
Players should not be able to gain points while taking down Freakers outside on “Dead Before Daylight”
Various crash fixes
General optimization fixes during melee conflicts