v0.2.85 v1.0.53
mlc-ai/web-llmSep 8, 2026 → Sep 9, 20262 days between releases
What's New
Major version jump introduces workflow automation and passkey features alongside Copilot and browser tooling fixes.
New Features
- Gate passkey 2FA behind enterprise plan
- User-selectable browser type for workflows
- Workflow retry policy settings
- Attempt-aware run views
- Screenshot capture failure observability
Improvements
- Copilot build tests run in matching browser
- Screenshot capture refinement
- CPU request fairness adjustments
- Copilot drafting block naming
- File upload result classification
Bug Fixes
- Raw-CDP screenshot rescue on persistent-context browsers
- Type forced click focus fallback
- Authenticator key editability
- Fill tool behavior in extraction blocks
- Visibility check reporting in Task V3
Upgrade Notes
The v1.0.53 notes do not reference the v0.2.85 runtime updates. Review workflow configurations for new passkey gating and retry policies. Ensure browser automation settings account for the new user-selectable browser type.
The Two Releases
v0.2.85
Sep 8, 2026· 1 month ago
This release updates the bundled TVM runtime and introduces synchronous OPFS access handles. It improves stability by preventing hangs and rejecting invalid parameters, while ensuring OpenAI-compatible API timestamps and preserving worker model state.
Full release notesRelease v1.0.53
Sep 9, 2026· 1 month ago
A substantial update introducing new features like passkey 2FA gating, user-selectable browsers, and workflow retry policies, alongside numerous bug fixes for the Copilot, Task V3 engine, and browser automation tools.
Full release notes