Chromium is a massive attack surface. Vulnerabilities are discovered frequently. In an Evergreen model, Microsoft patches the runtime in the background. Your app automatically inherits these security fixes without you needing to recompile or redistribute a new installer.
By choosing Evergreen, you:
Web standards evolve rapidly. An app compiled two years ago with a fixed web engine might struggle with modern JavaScript features today. The Evergreen model ensures your native app can render modern web content indefinitely, as the engine stays current. evergreen webview2
While Microsoft offers a Fixed Version runtime (where developers bundle a specific, static version of the runtime with their app), the . 1. Superior Security
Evergreen WebView2 is the modern, secure, and efficient way to integrate web content into Windows applications in 2026. By offloading the burden of web platform maintenance to Microsoft, developers can focus on building core application features, while benefiting from the security and performance of the latest Chromium engine. Chromium is a massive attack surface
Because the Evergreen runtime is system-wide, Windows can share binary pages across multiple processes. If the user runs your WPF app, a WinUI 3 app, and a PowerShell WebView2 script simultaneously, they all share the same Chromium binaries in RAM, reducing overhead dramatically.
: On compatible Windows versions, the WebView2 binaries are hard-linked with Microsoft Edge binaries when they match versions, further optimizing memory and disk usage Microsoft Learn Implementation Best Practices Availability Check : Always programmatically verify if the Evergreen Runtime is installed before initializing your application’s web control Microsoft Learn Update Handling Your app automatically inherits these security fixes without
When releasing a WebView2 application, developers must decide how the WebView2 Runtime will be distributed and updated on client machines. Microsoft offers two distinct approaches: the and the Fixed Version distribution mode .
The WebView2 Evergreen distribution model delivers the optimal balance between application agility and desktop stability. By shifting the burden of security compliance, performance tuning, and web standard updates to Microsoft, engineering teams can focus entirely on building stellar user experiences.