Microsoft makes developer and “canary” builds of its Chromium-based Edge browser available today for Windows 10 64-bit, says builds for macOS “coming soon”
Microsoft today released the first Edge build based on Google's Chromium open source project, the same browser that Google's Chrome is based on.
Context & Ripple Effects
This is the moment Microsoft's December pivot becomes tangible software: after announcing it would rebuild Edge on Google's Chromium project and extend it beyond Windows 10, the company has shipped the first public developer and canary builds, limited to Windows 10 64-bit with macOS explicitly teased.
The release follows last month's hands-on coverage of an early build showing Chrome extension support, limited sync, and a mixed Chrome/Edge UI — so today's drop is the first time outside developers can run that hybrid themselves rather than judge it from screenshots.
First-order effects
- Windows 10 64-bit users get their first runnable Chromium-Edge, confirming the leaked behavior — Chrome extensions install, the UI blends both browsers' identities — while Microsoft starts collecting feedback on the rebuild announced in December's cross-platform plan.
- macOS users are named as the next audience, setting up the Mac preview that arrived weeks later as daily canary builds for macOS 10.12 and above.
Second-order effects
- Google's Chromium project gains Microsoft as a high-profile contributor and validator, meaning Edge's success now reinforces the same engine Chrome runs on rather than fragmenting web compatibility.
- Web developers face pressure to keep testing against a second Chromium-based browser whose defaults, sync, and enterprise policies differ from Chrome's, even though the rendering layer is shared.
Third-order effects
- If the pattern holds, browser competition shifts from rendering engines — where Chromium has effectively won — to distribution and services layered on top, with Microsoft using Windows reach to push a Google-engine browser.
- A converged engine base concentrates upstream influence over the web platform in the Chromium project itself, raising the stakes for whoever steers its roadmap.
The trend: The browser market is consolidating around a single open-source Chromium engine, with rivalry migrating from rendering technology to distribution, defaults, and bundled services.