Mattermost

Professional plan's disclosed 'Maximum 250 Users' seat cap was removed from the plan card; no maximum user limit is now shown for Professional.

Enterprise gains a Matrix Protocol federation integration for bidirectional cross-server sync, and Enterprise Advanced gains two new ABAC (Attribute-Based Access Controls) capabilities: team-level ABAC membership policies and native built-in user attributes.

Enterprise's Agentic Platform gained three new tools (Multiplayer Tool Calling, Tool Policy Editor, Agent Creation); Mobile Ephemeral Mode added to Enterprise Advanced mobility. Professional plan now shows a 'Maximum 250 Users' cap; no user limit was stated for Professional before.

Channel Banners feature renamed to 'Classification Markings: Channel Banners' in Enterprise Advanced, with description updated to specify preset classification schemes (ISOO, DOD/DOW, TLP) and custom policy support.

Agents Token Accounting moved from Professional to Enterprise plan (tier movement); description expanded with Grafana integration detail. AI-enhanced Search and RAG renamed to Agents Enhanced Search with simplified description removing RAG reference. Anonymous ID-Based URLs added to Enterprise Advanced Classified and Sensitive Information Control section: team and channel URLs use random identifiers to prevent identification through shared links.

Professional plan now explicitly states a 'Maximum 250 Users' limit, introducing a user cap where no cap was previously documented.

InTune MAM mobile feature scope narrowed from iOS and Android to iOS only in the Enterprise Advanced plan.

Automated Actions removed from Enterprise Workflow automation. U.S. Based Premier Support moved from Enterprise Advanced to the Enterprise plan support section. Professional: Multi-window chat renamed to Multi-window desktop; Agents Token Accounting added. Enterprise Advanced: InTune MAM for iOS/Android added; Disappearing Messages renamed to Burn-on-Read Messages.

Enterprise LLM Management asterisk removed, indicating general availability (no longer scheduled for April 2026). Automatic channel translations now labeled EXPERIMENTAL in Enterprise Advanced. InTune MAM for iOS and Android added to Enterprise Advanced under a new Enterprise mobility section, enabling policy-based mobile app data controls without full device enrollment.

Professional plan feature renamed from 'Multi-window chat' to 'Multi-window desktop', clarifying that the multi-window capability applies to the desktop experience. Feature availability footnote updated: asterisked features previously scheduled to ship in 2025 are now scheduled to ship later in 2026, reflecting a timeline adjustment.

Professional plan pricing hidden - previously $10/user/month, now requires contacting sales New free trial offering introduced - limited-use edition of Enterprise Advanced for technical evaluation (Entry plan)

Enterprise LLM Management added to Enterprise Boards - Kanban-style Project Management added to Enterprise Work Management

Microsoft Teams messaging integration removed Beta label (graduated to production-ready)

AI-Accelerated Collaboration section added to Enterprise plan including contextual summarization, private air-gapped AI operations, real-time channel briefing, and PQ&A with access-controlled backend systems User tier guidance added indicating Free plan is ideal for up to 50 users, Professional for up to 500 users, and Enterprise for 500+ users

Group calling added to Professional tier (moved from Free tier) System-wide notifications added to Professional plan