On December 6, 2018, Microsoft announced its intent to base Edge on the Chromium source code, using the same rendering engine as Google Chrome but with enhancements developed by Microsoft. It was also announced that there will be versions of Edge available for Windows 7, Windows 8.1, and macOS, and that all versions will be updated on a more frequent basis. The initial release of the Chromium-based Edge, for desktops, is expected in the fall of 2019.