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Prerelease SDK 1.0.2526-prerelease, for Runtime 125 (Apr. 22, 2024)

Release notes for Microsoft Edge WebView2 Prerelease SDK, release date: Apr. 22, 2024.

NuGet package for WebView2 SDK 1.0.2526-prerelease

For full API compatibility, this Prerelease version of the WebView2 SDK requires the WebView2 Runtime that ships with Microsoft Edge version 125.0.2526.0 or later; see Runtime 125.0.2535.41 (May 28, 2024).

Detailed contents:

Breaking changes

Minimum .NET Framework version

The minimum .NET Framework version requirement for .NET WebView2, including WPF and WinForms controls, has been updated from .NET Framework 4.5 to .NET Framework 4.6.2.

Experimental APIs (Phase 1: Experimental in Prerelease)

The following Experimental APIs have been added in this Prerelease SDK.

SaveAs APIs to programmatically perform Save as

Added SaveAs APIs that allow you to programmatically perform the Save as operation. You can use these APIs to block the default Save as dialog, and then either save silently, or build your own UI for Save as.

These APIs pertain only to the Save as dialog, not the Download dialog, which continues to use the existing Download APIs.

Promotions to Phase 2 (Stable in Prerelease)

The following APIs have been promoted from Phase 1: Experimental in Prerelease, to Phase 2: Stable in Prerelease, and are included in this Prerelease SDK.

Fluent Style Overlay Scrollbar

Support for the Fluent Style Overlay Scrollbar.

Previous phase: Fluent Style Overlay Scrollbar in Prerelease SDK 1.0.2470-prerelease, for Runtime 124 (Mar. 25, 2024).

Bug fixes

  • Fixed a bug in WinRT JavaScript projection where passing in a typed array resulted in an "Interface Not Supported" error. (Runtime and SDK) (Issue #3486)

  • Added support for handling out array parameters in WinRT JavaScript projection. (Runtime and SDK)

  • Fixed missing AreBrowserExtensionsEnabled API in WinRT projection.

See also

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