[Release] openclaw/openclaw v2026.6.6-beta.1: OpenClaw 2026.6.6-beta.1

OpenClaw v2026.6.6-beta.1 is a security-focused release that substantially tightens security boundaries across transcripts, sandbox binds, and multiple integration points while improving Telegram delivery reliability, iMessage recovery, and browser/MCP connectivity. The release also enhances Control UI performance through cached metadata and lazy loading, expands provider support with OpenRouter OAuth and Claude Fable 5, and includes numerous fixes for agent recovery, channel delivery, and authentication. Key improvements span CLI progress reporting, observability, plugin management, memory optimization, and mobile channel support.

Key Points

• •Security boundaries significantly strengthened across transcripts, sandbox binds, host environment inheritance, MCP stdio, Codex HTTP access, and execution approvals (now fail-closed on timeout)
• •Telegram delivery improved with account-scoped topic routing, streamed text preservation through tool calls, safer callback handling, and unauthorized DM text exclusion from cache/prompt context
• •iMessage recovery and delivery enhanced with always-on inbound restart support, durable echo markers, block streaming, and hardened outbound transport
• •Browser and MCP connectivity gains include existing-session CDP support, WebSocket validation discovery, safer output boundaries, and Streamable HTTP loopback transport
• •Control UI startup and first-reply latency reduced through cached model metadata, removal of startup catalog wait, and lazy slash-command loading
• •Provider support expanded with OpenRouter OAuth onboarding and Claude Fable 5 adaptive thinking capabilities
• •Agent/session recovery improved with stale approval cleanup, drained reply-queue removal, and correct provider-failure terminal lifecycle state management
• •Channel delivery fixes address WhatsApp reply attachment, Feishu rate limits, Mattermost thread preservation, Discord reply hydration, and OpenAI Realtime WebRTC transcripts
• •Performance optimizations include TUI runtime plugin prewarming, plugin auto-enable deduplication, and prepared startup model metadata reuse
• •Observability enhancements enable trusted diagnostics channels to capture tool input/output content and add first-assistant-event traces with slow-reply warnings

Workflow Diagram

Concepts