mattermost/desktop v6.3.1

v6.3.1 (2026-10-15)

on GitHub

Mattermost Desktop v6.3.1 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/6.3.1/mattermost-desktop-6.3.1-win-x64.msi
  • SHA-256 Checksum: 5f47b75874680f944539f4c33be60de83a4572180fe0a40848669932db88d2b8
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-win-arm64.msi
  • SHA-256 Checksum: d771ad11cbf9d1814465f2459a49962651e3ea5e88ed1b0619de08cb94119084

Windows - zip files

• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-win-x64.zip
  • SHA-256 Checksum: 6fff38bd3981c7a9c65bec6e266b8d4209aef7abe35c691c901133a577557294
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-win-arm64.zip
  • SHA-256 Checksum: d4a9fabcd46d5d59600e9949a8f96dc86f75f49c2350229bb88153d93a25bf2c

Mac

• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-mac-universal.dmg
  • SHA-256 Checksum: 5a0c2f202f56ef7d3a1d5a013aafce2f8728af42b08f62c5bd8ab080a94b1ab4
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-mac-x64.dmg
  • SHA-256 Checksum: f917447231bbee72508ab43192c77548ddd5ba2e20f850089211fc2585e07587
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-mac-arm64.dmg
  • SHA-256 Checksum: ae03f4bc7875a42705b1e7b797cb605ea4204d49c65f12f0b3b8821177852bf1

Linux

• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-arm64.tar.gz
  • SHA-256 Checksum: b761979cbaad272e0142ed378a9bdaaceeed399a8686ade7841ea35a4e6dd01f
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-x64.tar.gz
  • SHA-256 Checksum: 1f17952e689bab2e545d181958e6e5f8b12544f3a9530f537f9be08d41376a69

Linux (Unofficial) - deb files

• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop_6.3.1-1_arm64.deb
  • SHA-256 Checksum: 11716e990a627afc210df217e8ece7fd6a83ce04493c0fd780e0e8956f4160d1
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop_6.3.1-1_amd64.deb
  • SHA-256 Checksum: 62ad18cf1b85023ce8992d83b207a74f17ac0d58281cf479db5b0aba4e088a3b

Linux (Unofficial) - rpm files (beta)

• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-aarch64.rpm
  • SHA-256 Checksum: 9b6bdbf9630fd42f9c22f685db2df4f1de0a26734705e8e3b55667b0dfa59f76
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-x86_64.rpm
  • SHA-256 Checksum: f41f05f2cb59d8ce7d680e06992ecd63126d5395667bb6015ae266bdc53b6da1

Linux (Unofficial) - AppImage files

• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-arm64.AppImage
  • SHA-256 Checksum: acc1c60395d44e4f38c46672f25cfe8982cb2edbd565d71ee3f64e9143ad0d17
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-x86_64.AppImage
  • SHA-256 Checksum: 3699630073712b4fb65522d05d00e1493c2727af2fae08607846c24942a826e1

Linux (Unofficial) - flatpak files (beta)

• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-aarch64.flatpak
  • SHA-256 Checksum: 3b10a56b61009e58f632a705967e95dbe49f896c42f4aa922e344857b1c096cc
• https://releases.mattermost.com/desktop/6.3.1/mattermost-desktop-6.3.1-linux-x86_64.flatpak
  • SHA-256 Checksum: 887b7b33e9c83e65660997f649e836b504b1cb82e44f0a18e634b3b79ecb21b5