Google expands custom MCP support in Gemini desktop app to more users

Google is rolling out support for custom MCP servers in the Gemini desktop app to more users, according to Testing Catalog, which posted on X on October 13, 2026.

The report is based on observed rollout, not an official Google announcement, and the post does not give the number of users or regions involved.

Testing Catalog also speculates that Computer Use and Superprojects could arrive alongside Gemini 4, and that a Gemini 4 release to Pro users would be the biggest win. The post offers no source for these expectations, and Google has not confirmed them.