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Reason Agent 1.32 to 1.34 · Desktop 0.1.124 · CLI 0.2.718 to 0.2.736
New
  • Switch your main Reason from its menu.
  • Custom instructions on the Settings home page.
  • Fable 5.2 now available in preview.
  • Gemini 4 Carbon now available.
  • Run any Loop now from its right-click menu.
  • Sessions can pass files to other Sessions.
  • Sessions move to Reason cloud when their computer goes offline.
  • The model picker lists every model by name.
Improved
  • Drag Sessions to reorder them.
  • Free models show effort levels.
  • The iPhone app’s demo works offline.
Fixed
  • The desktop app no longer adds itself to login items on its own.
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Reason Agent 1.25 to 1.31 · Desktop 0.1.119 to 0.1.123 · CLI 0.2.661 to 0.2.717
New
  • The iPhone app is now available.
  • Webhooks for Session events: started, needs input, finished.
  • API: answer, approve, deny or cancel a Session’s input requests.
  • Custom MCP endpoints support HTTP Basic sign-in.
  • Run a Loop once now.
  • Submit GitHub reviews, and close or reopen issues.
  • The agent can scroll with the mouse wheel.
  • Add Reason to Slack from chat.
Improved
  • Filter Sessions by origin.
  • Conversations start at the lowest effort level.
  • The Files panel shows the computer’s home folder.
  • New guide compares Grok Bot with Claude Code and Codex.
Fixed
  • No more repeated sign-in errors in the desktop app.
  • The desktop app updates an outdated CLI by itself.
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Reason Agent 1.19 to 1.24 · Desktop 0.1.114 to 0.1.118 · CLI 0.2.607 to 0.2.660
New
  • A one-page Home in the side panel.
  • Switch screens with arrows in the live computer view on multi-monitor Macs.
  • New CLI commands: reason guide and reason network send.
  • New CLI commands: reason run --wait, steer, queue and resume.
  • New CLI commands for memory and routines.
  • API reports usage by model and by agent.
  • New Reason Network guides for Grok Bot, Muse, Codex and Claude Code.
Improved
  • Hover a tool call to see what it is working on.
  • Hover a Session in the sidebar to preview its chat.
  • Drag any side panel row into the chat as a reference.
  • Search Settings from the sidebar.
  • Google sign-in opens in the full computer view.
  • Owners can keep a connected computer out of the workspace.
  • A stopped Session says why it stopped.
Fixed
  • A failed update restart reopens the desktop app.
  • The Linux desktop app runs without libfuse2 installed.
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Reason Agent 1.12 to 1.18 · Desktop 0.1.106 to 0.1.113 · CLI 0.2.411 to 0.2.606
New
  • The desktop app now runs on Windows and Linux, and on Intel Macs.
  • Reasons answer by name in Slack, @mention people and show when they are typing.
  • Each Reason can have its own Slack app.
  • Google Workspace connects again.
  • Subagents choose their own model and effort.
  • Claude Haiku 5.5 in the model picker.
  • API can create and delete cloud computers.
  • Add your own named model endpoints.
Improved
  • Interruptions take effect immediately.
  • The desktop app has an update button.
  • The Free with ads plan shows a single upgrade banner.
  • Sidebar Sessions show a green dot while working.
Fixed
  • The desktop app quits without an error dialog.
  • The desktop app no longer gets stuck in a not-responding loop.
  • Desktop notifications work again.
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Reason Agent 1.6 to 1.11 · Desktop 0.1.84 to 0.1.105 · CLI 0.2.174 to 0.2.410
New
  • reason acp runs Reason as an Agent Client Protocol agent.
  • Create, use and update cloud computers from a Session.
  • Switch between several accounts in Reason for Mac.
  • Create, edit, share and archive named Reasons.
  • Voice calls to any Session.
  • Every Session in a Reason can use its secrets.
  • The site is available in Japanese.
Improved
  • The account menu is reorganized.
  • The sidebar + button creates a new Reason.
  • Settings lists cloud computers alongside connected ones.
Fixed
  • No more false “Reason isn’t responding” alerts.
  • Expired Mac sign-ins repair themselves.
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Reason Agent 1.0 to 1.5 · Desktop 0.1.70 to 0.1.83 · CLI 0.2.83 to 0.2.170
Reason Agent 1.0 is the first stamped version: one product version now appears on every run. Reason Agent 1.1 has its own introduction on the blog.New
  • One command signs in and connects a computer.
  • Sessions bound to a repository start with its memory note.
  • The agent reviews recent Sessions daily and tidies its notes about you.
  • Team images for Yarn, Bun, uv, Poetry, pip and Cargo projects.
  • Cloud Sessions can record their screen.
  • Send a file from a cloud Session into a pull request in one step.
  • The Free plan runs on your own computer with your own model.
  • Download files a Session kept with reason session download.
  • Cloud Sessions use your desktop browser sign-ins.
Improved
  • reason --help lists the main commands; reason help all lists them all.
  • Live replies appear a sentence at a time.
  • Cloud Sessions run on Reason’s own computers.

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Before Reason Agent 1.0

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  • Sessions can be woken and moved between team-shared machines.
  • The desktop app imports Claude Code and Codex sessions during onboarding.
  • The model picker moves you to a model’s successor automatically.
  • Import MCP servers from Cursor and Devin.
  • The CLI updates itself.
  • Reason appears in Slack’s Agents list.
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  • Follow-ups can steer a running turn or wait in a queue.
  • Onboarding imports your secrets.
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  • Cloud Sessions set up their own environment.
  • Automatic top-ups with Stripe.
  • Sessions can start without a repository.
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  • Slack notifications for merged pull requests.
  • A PR review agent you can switch on.
  • A Live Preview tab.
  • A Configure agent screen for triggers, instructions and MCP servers.
  • The CLI updates in the background.
  • Per-seat billing for organizations.