OpenClaw v2026.5.2: Major Stability Update, ClawHub Migration & Grok 4.3 Integration

🧩 Plugin Ecosystem Transition

• ClawPack Format: OpenClaw introduces the new ClawPack packAGIng format. Plugin installations and updates now cARRy versioned artifACT Metadata for better management.

• Transitional Phase: Currently, the system still defaults to npm for plugin resolution. ClawHub is enabled only when explicitly specified with the clawhub: prefix.

• Git Support: External plugins can now be installed directly from Git repositories, offering more flexibility for developers.

• Modularization: ACPX and OpenTelemetry diagnostics have been decoupled into independent packages and are no longer included in the core Installation.

🚀 Performance Optimization

• Caching: Plugin tool descriptors now utilize caching, preventing the repetitive loading of plugin runtimes during the Prompt preparation phase.

• Session Management: The session list interface has been upgraded to use a Lightweight cache index, eliminating lag even with large session repositories.

• Faster startup: The gateway now skips unnecessary authentication overlays during startup, significantly reducing readiness latency.

🛠️ Critical bug fixes

• Heartbeat Loop: Previously, the scheduler failed to correctly handle process exit event feedback loops. This caused heartbeats configured for 30-minute intervals to trigger every 10 seconds.

• System Impact: This bug resulted in event loop delay peaks exceeding 6 seconds, rendering both the Control UI and TUI unresponsive.

• The Fix: The new version implements a centralized cooldown mechanism and per-Agent floodgates, limiting unexpected feedback loops to a maximum of 5 times per 60 seconds.

✨ Other Key Changes

• Model Upgrade: The default chat model for the xAI provider has been upgraded to Grok 4.3.

• SDK Enhancements: The SDK now includes a new tools.invoke RPC interface.

• Security: Log desensitization coveRAGe has been expanded to cover sensitive fields such as payment credentials and API Keys.

• Platform Fixes: Dozens of specific fixes have been APPlied to messaging channels including Discord, Telegram, Slack, WhatsApp, and Signal.

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