[Release] openclaw/openclaw v2026.5.28: openclaw 2026.5.28

OpenClaw v2026.5.28 delivers major stability and safety improvements across agent runtime recovery, channel delivery, mobile/chat surfaces, and provider coverage. Key enhancements include steadier subagent workspace separation, safer session identity handling across multiple channels (Matrix, Slack, Discord, Teams, etc.), broader mobile UI refresh with state preservation, stricter input validation, and expanded provider support (Claude Opus 4.8, Fal Krea, NVIDIA models). The release also improves CLI/auth paths, reduces repeated work in plugin hot paths, and strengthens E2E validation.

Key Points

• •Agent runtime recovery is more stable: subagents maintain cwd/workspace separation, session locks release on timeout, and stale restart continuations are avoided to prevent state corruption
• •Channel delivery safety improved across all platforms: Matrix room IDs, Slack replies, Discord warnings, Teams service URLs, and Telegram polling now preserve canonical session identity and prevent injection attacks
• •Mobile and chat surfaces preserve state better: iOS Pro UI, WebChat reconnect delivery, Talk tab playback, and session picker behavior now maintain context across reconnects and empty searches
• •Input validation is stricter: Browser tool timeouts, Gateway ports, Discord component IDs, Telegram callbacks, and cron retry handling now reject malformed values earlier to catch errors at source
• •Provider and model coverage expands: Added Claude Opus 4.8, Fal Krea image schemas, NVIDIA featured models, MiniMax streaming music, encrypted PDF extraction, and GitHub Copilot agent runtime support
• •CLI and auth paths fail faster with clearer recovery: Malformed numeric/version options rejected, workspace dotenv credentials ignored, OAuth/token lifetimes bounded, and restart guidance is actionable
• •Plugin and Gateway performance optimized: Reduced repeated work in install records, config parsing, tool search catalogs, and session stores while maintaining cache correctness
• •E2E validation and QA improved: Log, artifact, and cross-OS waits are now bounded to prevent hanging tests and ensure failing lanes produce proof rather than false-greening
• •New coordination and policy features: Workboard agent coordination tools for tracking active work, policy comparison checks, and ingress-channel conformance validation
• •Plugin SDK enhancements: Added reply payload sending hook for channel-owned replies and flattened package types for SDK declarations

Workflow Diagram

Concepts