Garry's Mod September 2026 Update Coming for Servers

A new Garry's Mod September 2026 update coming on 16 September at 3PM GMT was announced by Facepunch via Steam News. The release introduces upcoming fixes and features while keeping compatibility intact across existing infrastructure.

Release schedule and changelog availability

Facepunch confirmed the planned deployment timestamp as 16 September at 3PM GMT. The developers maintain a live overview of modifications on their Update Preview Changelog wiki page, which remains an active work in progress and subject to revisions prior to launch.

Beta branch testing options

To prepare environments ahead of deployment, several beta channels on Steam provide access to the upcoming build.

Accessing the client test builds

Players and administrators can evaluate client changes through standard Steam menus:

1. Exit the game completely.
2. Right-click Garry's Mod inside Steam and choose Properties.
3. Navigate to the Betas tab.
4. Pick the preferred channel.

The menu options include None for the default build, Pre-Release for the scheduled update build, and Dev for bleeding-edge code that carries more bugs than ordinary branches. The x86-64 beta also contains all upcoming changes alongside the dev and Pre-Release branches.

Submitting testing feedback

Issues identified during pre-release testing should be filed on the official Facepunch garrysmod-issues repository on GitHub after checking existing reports. Secondary feedback channels include the Steam announcement comments and the official Garry's Mod Discord server.

Requirements for server operators

Host administrators preparing a Garry's Mod server do not face mandatory downtime at release. The update remains backwards compatible with existing servers, meaning older server instances will continue to accept incoming connections.

While an instant upgrade is not enforced to stay online, operators should establish an updating a server without breaking it workflow to test the build on a staging server before replacing production files. Dedicated servers can run the beta branches using the official dedicated server setup documentation. Facepunch advises updating once the release lands to secure all new additions and fixes. Community communities across Garry's Mod surf servers can run their regular configurations without fear of instant disconnection.

Impact on joining players

Players will not be locked out of unpatched communities when the patch arrives. Because network backwards compatibility is preserved, updated clients can still connect to older servers that have not applied the patch yet.