Release Notes for v0.20.3

Changelog:

Mac

• Fix BrowserWindow.show() not focusing the window.
• Fix renaming application bundle.

Release Notes for v0.20.2

Changelog:

• Add disablewebsecurity attribute for <webview>.
• Fix getUserMedia in <webview>.
• Fix file dialogs in <webview>.
• Add support for spell checking in input fields and text areas.