Microsoft rolls out the last Edge Dev update running version 91

Microsoft Edge
Microsoft Edge (Image credit: Windows Central)

What you need to know

  • Microsoft released build 91.0.864.1 to Edge Dev Insiders this week.
  • It's the final build of Edge that runs version 91.
  • The build includes a few new features, including expanded printing options and improvements to Math Helper.

Here's everything that's new, as found in a Microsoft Tech Community post:

  • Added options to print documents at their actual size or to fit them to the page.
  • Added an option to prompt before closing a window with multiple tabs open.
  • Added the ability to clear Media Foundation data on demand. Note that on-exit is coming later.
  • Enabled Math Helper by default on Mac and Windows now that the rollout has completed.
  • Added a management policy to enable Math Solver.
  • Enabled support for the Chromium management policy to control Explicitly Allowed Network Ports.
  • Added support for ClickOnce on Windows 7.

The build also includes several fixes and reliability improvements:

  • Fixed a crash when dragging and dropping tabs.
  • Fixed a crash on launch that makes it appear as though the browser isn't opening.
  • Fixed an issue where certain websites crash a few seconds after loading.
  • Fixed a crash when interacting with the Favorites popup.
  • Fixed a crash when sorting Collections.
  • Fixed a crash when Collections sync is enabled.
  • Fixed a crash when closing tabs while popups like the Find On Page bar are open.
  • Fixed a crash when Shopping is enabled.

The update should roll out to your browser on its own, but you can also grab the latest version from Microsoft.

Sean Endicott
News Writer and apps editor

Sean Endicott is a news writer and apps editor for Windows Central with 11+ years of experience. A Nottingham Trent journalism graduate, Sean has covered the industry’s arc from the Lumia era to the launch of Windows 11 and generative AI. Having started at Thrifter, he uses his expertise in price tracking to help readers find genuine hardware value.

Beyond tech news, Sean is a UK sports media pioneer. In 2017, he became one of the first to stream via smartphone and is an expert in AP Capture systems. A tech-forward coach, he was named 2024 BAFA Youth Coach of the Year. He is focused on using technology—from AI to Clipchamp—to gain a practical edge.