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Mattermost

COLLAB
Velocity6.3

Open-source secure collaboration platform for technical teams.

mattermost.com ↗

Mattermost v12 puts user-scoped permissions, private models and audit trails on every agent action.

ai agentsaccess controlself-hosteddefensecompliance
◆Current state
Mattermost's feed spent five weeks on security and resilience essays; the last product release was v11.11's data-spillage exposure report. v12 changes that: agents now act with the requesting user's access rather than a shared service account, can run on private models, and leave an audit trail per action. The announcement is short on detail, but the pitch is clear and aimed at defense and regulated buyers.
◆Where it's heading
The essays on zero trust, data spillage and out-of-band response were building toward this. Mattermost is positioning its AI agents as governed, mission-safe tools inside its classified-environment niche rather than competing on agent breadth. The in-house Matty Code agent shows it also uses agents to build the product itself.
◆Prediction
Expect v12.x follow-ups that publish admin controls and audit-log detail for agent actions, plus more deployment-focused content aimed at defense buyers.

◆Recent moves

  1. 3d ago

    Mattermost v12 Cross Guard: managed cross-domain transfers

    Cross Guard is the second v12 piece after the agent-permissions launch: a managed path for moving messages and files across accredited cross-domain boundaries, replacing print-and-walk transfers. It extends the v11.11 data-spillage work into how classified teams actually move information.

    View source ↗
  2. 6d ago

    Mattermost v12: Agents Are Doing the Work. Now Control What They Can See.

    ⚡ SPARK

    After weeks of security essays, v12 is the product release they were setting up. It brings the data-spillage thinking behind v11.11's exposure report to AI agents: user-scoped access, private models and auditability for every agent action.

    View source ↗
  3. 15d ago

    Where the Response Team Talks After the Gateway Falls

    A thought-leadership post using the Citrix NetScaler breaches to argue for an out-of-band response channel. It adds nothing to the product, but it shows the incident-response pitch Mattermost wants v12.0 to land on.

    View source ↗
  4. 23d ago

    The Conversation Is the Operation: Defending Collaboration Infrastructure Like an Intelligence Asset

    An essay framing collaboration channels as intelligence targets. It continues the defense-sector positioning without any product change attached.

    View source ↗
  5. 23d ago

    Two Outages, One Vendor, One Lesson in Resilience Planning

    Commentary on shared-vendor outages taking down email and chat together. It's an indirect argument for self-hosted, independent comms, which is Mattermost's core wedge.

    View source ↗
  6. 23d ago

    Our Newest Top Contributor Is an AI Agent: 4 Months of Matty Code

    Mattermost reports that its in-house coding agent, Matty Code, is now a top-three repo contributor after four months. That could speed up shipping, but customers see no change yet.

    View source ↗