OpenClaw Releases v2026.4.25 with Major TTS Upgrade and Six New Voice Service Providers

Gate News message, April 27 — OpenClaw released v2026.4.25 according to its official GitHub changelog. The update introduces comprehensive upgrades across voice, plugins, observability, and browser automation modules. The TTS system now supports six new voice service providers: Azure Speech, Xiaomi MiMo, ElevenLabs v3, Inworld, Volcengine, and local CLI. New features include conversation-level automatic TTS control, TTS persona binding, and cross-agent/account-level configuration coverage.

The plugin registry has been optimized by migrating startup and installation paths to cold persistent storage, reducing full manifest scans and improving plugin update, fix, and discovery reliability. OpenTelemetry instrumentation now covers the full pipeline including model calls, token usage, tool loops, Harness execution, process execution, message delivery, context assembly, and memory pressure metrics.

Browser automation enhancements include iframe-aware role snapshots, Chrome DevTools Protocol (CDP) readiness optimization, headless one-click launch, and deeper browser diagnostic probes. Installation stability has been improved with fixes for Windows, macOS, Linux, and Docker platforms.