Latest Mattermost Desktop version: 6.3.1
The current verified stable version of Mattermost Desktop is 6.3.1.
Stable release
6.3.1Release date: 2026-10-15. Source verified: 2026-10-19. Source: Mattermost Desktop GitHub releases.
Desktop client for Mattermost team messaging and collaboration.
Open the official Mattermost Desktop downloadSource-backed version details
Catalog source
Mattermost Desktop GitHub releases
Verification status
Source verified: 2026-10-19.
Release date
Release date: 2026-10-15.
Category
Communication
Ownership
Vendor-provided source
Evidence
Repository release record
Recently checked — Checked today; the catalog review window is 45 days.
Where can you install it?
What-Version labels who publishes or maintains each route. Community routes are useful, but they are not presented as vendor downloads.
Vendor-providedMattermost Desktop GitHub releases
Version evidence and catalogued download links are anchored to the publisher-owned source.
Open publisher source ↗