What’s New in 0.1

Learn what the first OpenUI Rails release provides and which responsibilities stay in your Rails application.

After reading this guide, you will know:

  • Which capabilities are documented on the current default branch.
  • Which integration boundaries to review before deploying your application.

First release

Version 0.1.0 introduces the Rails engine, stream protocol, and action bridge. The initial release is dated 2026-10-18. The Ruby API can change in later 0.x releases. Read Upgrading before moving from an earlier Git checkout.

The current implementation includes:

  • A Rails view helper and Stimulus bridge for mounting the pinned browser renderer.
  • A prompt and library-manifest contract with runtime fingerprint checks.
  • Ordered stream envelopes with client-side gap detection.
  • One allowlisted action endpoint for component actions and browser tool calls.
  • An optional RubyLLM adapter for completion streaming.

Read the release history for the version status, and check the GitHub releases for published release notes.

Your application supplies authentication, tenant-scoped surface lookup, authorization, shared idempotency storage, and snapshot recovery. The gem does not provide a persistence layer or a snapshot endpoint. Review Production before deployment.

Next Steps