Gameplay:

• A collaboration with Abiotic Factor has arrived in the underground! Found randomly generated in a custom scene within the The Forgotten Ruins, it includes:
• New Pet: Electro-Pet
• New Enemy: Electro-Pest
• New Weapons:
• Pipe Club
• Quill Rifle
• New Equipment:
• Science Armor Set
• New Decorative Items:
• Vending Machine
• Water Cooler
• Bottled Anomaly
• Wooden Crates
• Portal Waypoint
• Food items:
• Rootbear
• Skip
• Slushie
• Mug of Coffee
• Kizz Cola
• Vit

Bug fixes:

• Multiple environmental structures should no longer be damageable by melee weapons.
• Sign texts are no longer shown for a single frame when the in-game UI has been disabled.
• Damage numbers should now be more accurate when multiple enemies are damaged by the same source in quick succession.

Other:

• Created improved button remapping menu:
• The menu is now easier to follow and navigate.
• The menu is more in line with games on UI.
• Split all the input categories to smaller chunks for easier editing.
• The remapped button data is now saved in save files for easier deleting/editing/sharing. This requires re-creating your old button remappings.
[*]The button remapping is now also available on consoles.

Source: https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1795917897286118