Release SDK 1.0.3351.48, for Runtime 138 (Jul. 1, 2025)

Release notes for Microsoft Edge WebView2 SDK, release date: Jul. 1, 2025

NuGet package for WebView2 SDK 1.0.3351.48

For full API compatibility, this Release version of the WebView2 SDK requires WebView2 Runtime 138.0.3351.48 (Jul. 1, 2025) or later.

Promotions to Phase 3 (Stable in Release)

The following APIs have been promoted from Phase 2: Stable in Prerelease, to Phase 3: Stable in Release, and are now included in this Release SDK.

Allow input event messages to pass through the browser window

The CoreWebView2ControllerOptions class now has an AllowHostInputProcessing property, which allows user input event messages (keyboard, mouse, touch, or pen) to pass through the browser window, to be received by an app process window.

Previous phase: Allow input event messages to pass through the browser window in Prerelease SDK 1.0.3344-prerelease, for Runtime 138 (Jun. 3, 2025).

.NET/C#

• CoreWebView2ControllerOptions Class:
  • CoreWebView2ControllerOptions.AllowHostInputProcessing Property

WinRT/C#

• CoreWebView2ControllerOptions Class:
  • CoreWebView2ControllerOptions.AllowHostInputProcessing Property

Win32/C++

• ICoreWebView2ControllerOptions4
  • ICoreWebView2ControllerOptions4::get_AllowHostInputProcessing
  • ICoreWebView2ControllerOptions4::put_AllowHostInputProcessing

See also

• Runtime 138.0.3351.48 (Jul. 1, 2025)
• Release notes for WebView2
  • Release notes for the WebView2 Runtime
  • Release notes for WebView2 SDKs