BrowserOS

BrowserOS 155.0.8309.26

The Open-Source Agentic Browser.

  • By BrowserOS Software Inc
  • Open Source
  • Updated Oct 5, 2026
Download for Windows

About BrowserOS

The Open-Source Agentic Browser.

What's new in 155.0.8309.26

✨ What's new

  • No BrowserOS account needed. Sign-in and cloud-sync screens have been removed. Conversations continue to stay on your device, and sidebar history is now available to everyone.
  • Connect your preferred AI. The built-in BrowserOS model has been retired. Connect an LLM provider or a coding agent in AI Settings to chat. If a scheduled task used the built-in model, choose a connected provider for it too.
  • An updated model picker. The ChatGPT subscription model list now includes newer model families, and the provider catalogue has been refreshed. You can also enter a model ID directly; availability depends on your provider and subscription.
  • Screenshots reach custom providers. Fixed an issue that prevented vision-capable models on OpenRouter and other OpenAI-compatible providers from receiving the agent's screenshots.
  • Chromium 155. Updated to Chromium 155.0.8059.26.

Full release notes »

Technical details

PublisherBrowserOS Software Inc
Version155.0.8309.26
Release date2026-10-05
LicenseAGPL-3.0
Installer typeexe
Architecturex64
Package IDBrowserOS.BrowserOS

Links & install command

Install BrowserOS from the command line with Windows Package Manager (winget):

winget install --id=BrowserOS.BrowserOS -e

aiartificial-intelligenceartificialintelligencebrowserchromiuminternetllmmanifestv2mv2webwebpage

Older versions

  • 151.0.8162.137
  • 151.0.8160.137
  • 148.0.7966.97
  • 148.0.7948.97
  • 146.0.7821.31
  • 146.0.7818.31
  • 146.0.7815.31
  • 145.0.7760.45
  • 145.0.7755.45