One of the RCE attack vectors fixed in the previous update crossed paths with splitscreen connections.

This update only minor fixes of the previous 2.2.1.3 update.

Fixed a networking error when using the defibrillator.

Fixed a network exploit that could crash servers.

Use 'l4d_delete_temp_files 0' to disable this.

Temp files are removed from disk after each session.

Added a Multiplayer Option to disable sprays to prevent other players' sprays from appearing on your client.

Blocked an exploit that could be used to crash servers.

Fixed some incorrect disconnect messages.

Part of The Last Stand Community Update fixes.

Improved dedicated server searches to return lower-ping servers closer to the lobby leader's local region.

Enabled rumble effects through Steam Input.

Interface and HUD updates for Steam Deck.

Prevent a crash when creating a depth render target texture with multiple frames.

Hid controller icons in the HUD by default.

Added the missing grenade binding for Xbox controllers.

Added a menu option to disable controller vibration.

Fixed chat text scale at high resolutions.

In this update Valve thanked to the community members who helped target specific server instances for investigation.

Fixed a long-standing issue where scripts would randomly fail to load, leading to a variety of game-breaking bugs including missing crescendo events and finales that end instantly.

Return the model index from script precache calls.

Fixed text corruption in the Mutations menu on Linux.

Fixed a crash on Linux at the main menu.

Fixed a shader crash with Vulkan on Intel.

Fixed potential exploit to remotely crash servers.

DXVK (a set of software libraries that translates DirectX API calls to Vulkan API calls) update to DXVK Version 2.0.

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