Prerelease SDK 1.0.3477-prerelease, for Runtime 140 (Aug. 11, 2025)

Release notes for Microsoft Edge WebView2 Prerelease SDK, release date: Aug. 11, 2025.

NuGet package for WebView2 SDK 1.0.3477-prerelease

For full API compatibility, this Prerelease version of the WebView2 SDK requires the WebView2 Runtime that ships with Microsoft Edge version 140.0.3477.0 or later; see Runtime 140.0.3485.44 (Sep. 8, 2025).

See also

• Runtime 140.0.3485.44 (Sep. 8, 2025)
• Release notes for WebView2
  • Release notes for the WebView2 Runtime
  • Release notes for WebView2 SDKs