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Fabric v0.21.0 (2026.7.16)

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@github-actions github-actions released this 16 Jul 22:28
v2026.7.16
99db0c9
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Fabric 0.21.0 — Agent Live View

Fabric Desktop can now show Browser and Computer Use activity beside the conversation, then move that same session into a resizable, always-on-top picture-in-picture window.

Browser — docked Browser — picture-in-picture
Browser Agent Live View docked beside chat Browser Agent Live View in picture-in-picture
Computer Use — docked Computer Use — picture-in-picture
Computer Use Agent Live View docked beside chat Computer Use Agent Live View in picture-in-picture

How to use it

  1. Start Fabric Desktop and ask the agent to use Browser or Computer Use.
  2. Agent Live View opens automatically when the first visual action starts.
  3. Use Pop out picture-in-picture to keep the view above other windows.
  4. Use Pause visual updates to freeze only the preview—the agent keeps working.
  5. Use Return to side panel to dock the same session again without restarting it.

See the complete Browser Live View guide and Computer Use Live View guide.

Highlights

  • Browser Live View uses a dedicated authenticated visual connection on compatible local CDP sessions. It pulls one bounded frame at a time, starts at most two captures per second per session, and yields to agent browser actions.
  • Computer Use reuses at most one bounded screenshot already returned by an action instead of creating another capture loop.
  • Live View adds no model tool, tool schema, prompt text, context tokens, or model calls.
  • Background-session activity no longer opens the active chat's Live View rail.
  • Finder and Dock launches can now discover user-local cua-driver installations.
  • The optional MCP SDK is raised to 1.28.1 for fixes covering CVE-2026-52869, CVE-2026-52870, and CVE-2026-59950.
  • Documentation contracts now require the Desktop, Browser, and Computer Use guides to evolve with their load-bearing code paths.

Release artifacts

This release publishes the Fabric 0.21.0 Python wheel and source distribution, plus SHA256SUMS and a provenance manifest. The production bytes are the exact candidate that passed Linux, macOS, and Windows smoke verification on merge commit 99db0c9b9eb2201b2cae0e43bb7ca4ab3e929fe0.

What's Changed

  • chore(deps): bump websocket-driver from 0.7.4 to 0.7.5 in /website by @dependabot[bot] in #23
  • fix(dashboard): make Team, Work, and TUI context operational in #26
  • docs: keep documentation synchronized with runtime in #27
  • feat(desktop): add Browser and Computer Use Agent Live View in #30

Full changelog: v2026.7.15.3...v2026.7.16

Contributors

dependabot
Assets 6
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