SteamCore (New Update)

Features
Use Steam with Unreal Engine Blueprints
Steam Interfaces Exposed to Blueprints
AppList
Apps
Friends
GameSearch
GameServer
GameServerStats
Inventory
Input
Matchmaking
MatchmakingServers
Music
Networking
NetworkingUtils
Parties
ParentalSettings
RemoteStorage
RemotePlay
Screenshots
UGC (Workshop)
User
UserStats
Utils

Whats the difference between SteamCore and SteamCore PRO?
SteamCore PRO features it’s own Online Subsystem and is not locked to the Online Subsystem included with Unreal Engine, this allows for more customizability and flexibility without having to modify engine source code.
SteamCore PRO includes the latest Steamworks SDK version. (Currently 1.55)
SteamCore PRO sessions are not region locked
You can find SteamCore PRO here

Technical Details
Code Modules:
SteamCore [Runtime] SteamCoreWeb [Runtime] Features
Achievements
Friends
Stats
Player Stats
Global Stats
Multiplayer
Matchmaking
Workshop (UGC)
Remote Storage
Inventory
And much much more..
Number of C++ Classes: 200+
Supported Development Platforms: Windows
Supported Target Build Platforms: Windows, Linux, Mac

https://www.unrealengine.com/marketplace/en-US/product/steamcore