Mattermost v11.4: Hardened integrations, accelerated mobile workflows, cross-domain security & more

Mattermost v11.4 introduces key updates designed for teams operating in high-security environments. From a comprehensive update of our integration ecosystem and mobile interoperability to a partnership with infodas for multi-domain operations, this release focuses on the stability and security of mission-critical collaboration.

To start using these new features, upgrade your Mattermost server today.

Hardened integrations: Jira, GitHub, MS Teams Meetings, and more

To ensure teams maintain workflow continuity without security or authentication interruptions, we have updated the core components of our most essential plugins.

• Proactive Jira management: The Jira (v4.5.1) plugin now prompts users to reconnect when OAuth tokens expire and includes support for the Advanced Roadmap Team field.
• Stable virtual meetings: MS Teams Meetings (v2.4.0) has been updated for consistent performance in high-concurrency environments.
• Improved security: Confluence (v1.8.0) and Zoom (v1.11.0) have been updated with React 19, reducing potential vulnerabilities and increasing UI responsiveness, among other security patches.
• Streamlined DevOps: Updates to GitLab (v1.12.0) and GitHub (v2.5.0) improve “mute” functionality and resolve connection edge cases.

Learn more about Mattermost integrations.

Accelerated mobile workflows

Microsoft ecosystem interoperability & improved emoji use on mobile

We continue to refine the experience for users accessing Mattermost from mobile devices within secure environments.

Refined mobile experience on M365

For users running Mattermost embedded within Microsoft Teams or Outlook on mobile, we’ve resolved the “Your browser does not support notifications” warning banner. This update ensures a seamless experience for teams using the Microsoft ecosystem as their primary mobile entry point.

Find out how to maximize your Microsoft investment with Mattermost.

Updated mobile emoji picker

Precision in communication is vital during incident response. With Mattermost Mobile v2.37, we’ve introduced a searchable, category-based emoji picker for iOS and Android, including support for custom emojis. This allows teams to provide rapid status updates and approvals through a standardized, intuitive interface.

Mattermost & infodas partner for secure cross-domain collaboration

In January, we announced a partnership with infodas to support NATO and partner nations in achieving decision advantage in multi-domain operations. Together, we are developing secure cross-domain collaboration solutions designed for modern command and control (C2) environments.

Learn more about our new partnership.

Mattermost on the road

Following our attendance at the WEST Conference 2026, our team will be present at the following upcoming events.

• Security & Policing 2026 | March 10, 2026 | Farnborough, UK: Visit booth C114 to discuss secure collaboration for defense and law enforcement.
• TechNet Pacific Northwest | March 18, 2026 | Joint Base Lewis–McChord, Washington: See how Mattermost supports coordination in complex, high-security environments.
• CyberUK | April 21, 2026 | Scottish Event Campus, Glasgow, Scotland: Learn how Mattermost supports incident response while meeting stringent sovereignty requirements.

Visit our events page to learn more.

Try Mattermost v11.4 today

Upgrade your Mattermost server to start using the new features outlined above. 

To learn more about additional key updates with this feature release, please visit the Mattermost v11 Changelog.