Admins, you've been warned: The clock is ticking on Edge's IE Mode
Legacy web apps have guaranteed shelter only through 2029, and Redmond warns modernization can take years
Microsoft has issued a warning to administrators regarding the limited lifespan of Internet Explorer mode in Edge. The feature, which enables legacy websites to operate within Edge using the Trident MSHTML engine, is guaranteed support only through 2029. Microsoft has stated that it will provide one year's notice before retiring the feature, but even after support ends, organizations may still face security, compatibility, and compliance risks.
Microsoft has been advocating for application modernization, urging customers to begin migrating legacy systems that still rely on Internet Explorer technology. The company announced in 2021 that IE mode would be supported until at least the end of 2029, but this latest reminder suggests that some customers may still have significant migration work ahead.
Administrators are not required to act immediately, but migrations involving outdated and highly dependent applications can take years to complete. Internet Explorer 11, which remains supported until 2032 in Windows 10 IoT Enterprise LTSC 2021, is part of the ecosystem that will continue to exist even after Edge's IE mode support concludes. While the end of 2029 may seem distant, it could pose a significant challenge for enterprises that have been operating with legacy systems for decades.
Written by urgent.news from The Register Software's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
