[Release] openclaw/openclaw v2026.4.19-beta.2: openclaw 2026.4.19-beta.2

OpenClaw v2026.4.19-beta.2 addresses critical fixes for agent streaming, nested lane processing, and session token tracking. Key improvements include proper usage reporting for OpenAI-compatible backends, elimination of head-of-line blocking in nested agent runs, and preservation of session token totals across provider metadata variations. The release also ensures backward compatibility with legacy update verification for QA Lab runtime environments.

Key Points

• •Always send `stream_options.include_usage` on OpenAI streaming requests to ensure local and custom backends report actual context usage instead of 0%
• •Scope nested agent work per target session to prevent long-running nested runs from blocking unrelated sessions across the gateway
• •Preserve carried-forward session token totals for providers that omit usage metadata to maintain accurate `/status` and `openclaw sessions` reporting
• •Fix legacy update verification compatibility with QA Lab runtime shim to prevent npm installation failures on older global installs
• •Eliminate head-of-line blocking issues in nested lane processing for improved multi-session performance
• •Maintain backward compatibility during beta updates to ensure smooth transitions from legacy installations

Workflow Diagram

Concepts