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Release notes for Microsoft Edge WebView2 Runtime, release date: Sep. 11, 2026.
In addition to the following WebView2 Runtime improvements, you can also use the new web platform features from Microsoft Edge 153; see Microsoft Edge 153 web platform release notes (Sep. 2026).
Bug fixes
Fixed an issue that could cause WebView2 applications to crash during startup.
Fixed a cross-origin redirect failure when
WebResourceRequested(WRR) was attached.Fixed downloads so they're submitted for antivirus scanning under the host app's identity instead of the shared Runtime's identity.
Fixed Mark-of-the-Web prompt state so it's tracked per the host app instead of per the shared WebView2 Runtime.
Passkey prompts now open in the correct WebView2 host window.