v6.3.0-rc.6 (2026-08-15)

Mattermost Desktop v6.3.0-rc.6 has been cut!

Release notes can be found here: https://docs.mattermost.com/install/desktop-app-changelog.html

The download links can be found below.

Windows - installer files

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-win-x64.msi
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-win-arm64.msi
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Windows - zip files

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-win-x64.zip
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-win-arm64.zip
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Mac

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-mac-universal.dmg
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-mac-x64.dmg
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-mac-arm64.dmg
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-arm64.tar.gz
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-x64.tar.gz
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - deb files

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop_6.3.0-rc.6-1_arm64.deb
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop_6.3.0-rc.6-1_amd64.deb
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - rpm files (beta)

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-aarch64.rpm
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-x86_64.rpm
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - AppImage files

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-arm64.AppImage
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-x86_64.AppImage
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - flatpak files (beta)

• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-aarch64.flatpak
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.6/mattermost-desktop-6.3.0-rc.6-linux-x86_64.flatpak
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

v6.3.0-rc.5 (2026-08-04)

Mattermost Desktop v6.3.0-rc.5 has been cut!

Release notes can be found here: https://docs.mattermost.com/install/desktop-app-changelog.html

The download links can be found below.

Windows - installer files

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-win-x64.msi
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-win-arm64.msi
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Windows - zip files

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-win-x64.zip
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-win-arm64.zip
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Mac

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-mac-universal.dmg
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-mac-x64.dmg
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-mac-arm64.dmg
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-arm64.tar.gz
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-x64.tar.gz
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - deb files

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop_6.3.0-rc.5-1_arm64.deb
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop_6.3.0-rc.5-1_amd64.deb
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - rpm files (beta)

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-aarch64.rpm
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-x86_64.rpm
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - AppImage files

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-arm64.AppImage
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-x86_64.AppImage
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

Linux (Unofficial) - flatpak files (beta)

• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-aarch64.flatpak
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938
• https://releases.mattermost.com/desktop/6.3.0-rc.5/mattermost-desktop-6.3.0-rc.5-linux-x86_64.flatpak
  • SHA-256 Checksum: a824bc7739e226e1b40ea0f8c4e4f4c6f796fc3b4abfa6e9abe3bd119a30d938

v6.3.0-rc.4 (2026-08-04)

TIN Connect Desktop v6.3.0-rc.4

Release candidate for TIN Connect Desktop (fork of Mattermost Desktop).

Installers

• macOS: tinconnect-desktop-6.3.0-rc.4-mac-{arm64,x64,universal}.dmg / .zip (unsigned)
• Windows: tinconnect-desktop-6.3.0-rc.4-win-{arm64,x64}.msi / .zip
• Linux: .deb, .rpm, .AppImage, .flatpak, .tar.gz (x86_64 + arm64)

This is a pre-release build.

TIN Desktop v6.2.0

The Intelligent Network Desktop App v6.2.0. Pre-configured to connect to your TIN workspace.

Downloads:

• macOS: mattermost-desktop-6.2.0-mac-universal.dmg
• Windows: mattermost-desktop-6.2.0-win-x64.msi
• Linux (tar.gz): mattermost-desktop-6.2.0-linux-x64.tar.gz
• Linux (AppImage): mattermost-desktop-6.2.0-linux-x86_64.AppImage