All release notes

Published 23 September 2026

Build from Slack and keep work organised

Ask for changes in Slack, follow progress in the thread, and spend less time managing old work.

Go from a Slack request to a preview

Prompt-based Slack previews are working again, with better routing to the right product. Agent progress appears in the thread, and the preview link is posted as soon as it is available rather than waiting for the whole run to finish.

The completion message is also shorter, keeping the result easy to find in a busy conversation.

Connect your own tools

Public API documentation and delegated access tokens make it easier to integrate tools with Flex. Product descriptions can also be updated through the API, helping connected workflows keep product context current.

Less workspace housekeeping

You can delete chats and hosted apps in bulk. GitHub setup has also been simplified, reducing the steps needed to connect the repositories you want to work on.

Keep preview state through restarts

Preview state is handled more reliably across web-server restarts. Additional checks help agents avoid starting duplicate development servers inside the same preview.