While its successors, starting with Version 110, required at least Windows 10 to function, Version 109 continued its watch. It was granted a special "extended" period of critical security fixes that lasted until . During these months, it wasn't just a browser; it was a lifeline for organizations managing transitions, offering a familiar interface and essential tools like the WebView2 Runtime to keep legacy apps running smoothly. The Final Transition

Administrators gained granular control over features like the Edge Sidebar, allowing corporate networks to disable or customize web app extensions across entire fleets of devices. The Security Risks of Staying on Version 109