Back on November 3, Uncharted: A Thief’s End received update 1.15, adding PlayStation 4 Pro support, as well as many other changes. Since then, Naughty Dog has released Uncharted 4 update 1.16 and 1.17 to fix various issues in Multiplayer, including one where the HDR option could cause certain menu screens to become unresponsive.
Here’s the full list of patch notes for update 1.16 (released November 9) and update 1.17 (released today):
Uncharted 4 Update 1.16 – Multiplayer Changes
Ranked

Leaderboards have been reset to reflect the current season
Fixed an issue with the Aviators not displaying properly

Balance

FAL Headshot damage adjusted so a player can no longer be downed unless all 3 bullets are headshots
Lowered the transition time from blindfire to aim-down-sights: Lowe-S, Harrison 1890, AK-47, P90 All Shotgun blindfiring damage now less effective than aiming
Spezzotti 12 Gauge ? Fire Rate Increase/Damage Increase
Pistole ? Small increase to Base Damage
US-AN 12 movement damage modifier removed (in line with other shotguns)

Other Fixes

Fixed an issue with the improper drops occurring during Bounty Hunter on the map Auction House
Fixed Audio Options Menu crash that could occur when resetting to default from certain settings
Fixed a white flash that occurs when transitioning from Multiplayer to the Main Menu
Fixed issue with HDR settings not defaulting automatically when switching outputs.

Uncharted 4 Update 1.17 – Multiplayer Changes

Fi...