Microsoft is withdrawing Internet Explorer slowly but steadily. The Microsoft 365 team announced in August that it will phase out support for Internet Explorer 11 starting with the end of Microsoft Teams support for Internet Explorer on November 30, 2020.
On August 17, 2021, Microsoft 365 will stop supporting Internet Explorer 11 entirely. The old version of Edge reaches the end of support on March 9, 2021 and leaves the new program tourChromium-based Edge as Microsoft's only browser.
The German blog Dr. Windows he says that Internet Explorer 11 will stop supporting Microsoft Accounts and Microsoft Apps in November. Microsoft has not released any public announcements confirming the blog post, but the site administrator is usually well informed.
According to the publication, Microsoft is informing Enterprise customers about the upcoming end of support. It is not clear if the support fee only affects Microsoft business customers or home users.
The end of support does not mean that Internet Explorer 11 users will see a message like "your browser is no longer supported". However, Internet Explorer may lose access to certain features, new or old, that will be changed or added after the official end of support.
So the only one choice that companies and home users will have is to use the new browser Microsoft Edge. The old Edge will reach the end of support in early 2021 and that leaves Microsoft Edge with base Chromium as the only supported browser.
Internet Explorer 11 will probably be supported by at least 2025 but only with security updates, and fewer and fewer websites will work properly with the application as it will have no support for new features or new technology.
Companies can use Internet Explorer functionality in the new Chromium-based Microsoft Edge browser for websites, apps and services that require specific technologies ή functions of Internet Explorer.