name: Mattermost
website_url: https://mattermost.com/
description: Platform for secure collaboration across the entire software development lifecycle, can be integrated with Gitlab (alternative to Slack).
licenses:
  - ⊘ Proprietary
platforms:
  - Go
  - Docker
  - K8S
tags:
  - Communication - Custom Communication Systems
source_code_url: https://github.com/mattermost/mattermost
stargazers_count: 35751
updated_at: '2026-03-10'
archived: false
current_release:
  tag: v11.5.1
  published_at: '2026-03-06'
commit_history:
  2025-04: 227
  2025-05: 215
  2025-06: 229
  2025-07: 174
  2025-08: 107
  2025-09: 206
  2025-10: 162
  2025-11: 116
  2025-12: 87
  2026-01: 120
  2026-02: 133
  2026-03: 56