GNOME 3.21.1 Release Starts Cooking New Features For GNOME 3.22
Matthias Clasen announced the release today of GNOME 3.21.1 as the first development release in the road towards GNOME 3.22.
GNOME 3.21.1 features improvements to its Epiphany web-browser, bug fixes for GNOME Shell, initial Steam support for GNOME Software, many other early improvements for GNOME Software, and bug fixes for Mutter. In the GNOME App space there is support for versioned GTK3 themes in GNOME Tweak Tool, but aside from that it's mostly bug fixes and early prep work for the GNOME 3.22 cycle.
More details on GNOME 3.21.1 can be found via the GNOME.org mailing list.