That page is a pain to read on mobile. I copied the main part of the announcement here for readability.

The Wine development release 9.0-rc1 is now available.

This is the first release candidate for the upcoming Wine 9.0. It marks the beginning of the yearly code freeze period. Please give this release a good testing and report any issue that you find, to help us make the final 9.0 as good as possible.

What’s new in this release:

• Bundled vkd3d upgraded to version 1.10.
• Support for DH encryption keys with a recent GnuTLS.
• Keyboard layouts support in the Wayland driver.
• Various bug fixes.

The source is available at:

https://dl.winehq.org/wine/source/9.0/wine-9.0-rc1.tar.xz

Binary packages for various distributions will be available from:

https://www.winehq.org/download

You will find documentation on https://www.winehq.org/documentation

You can also get the current source directly from the git repository. Check https://www.winehq.org/git for details.

Wine is available thanks to the work of many people. See the file AUTHORS in the distribution for the complete list.

Detailed contributions are given in the announcement.