Initially set to be released last week on March 13th, the GNOME 40 Release Candidate is the last milestone in the six-month-long development cycle of the popular desktop environment used by numerous GNU/Linux distributions.
The release of the RC milestone also marks the end of the development cycle for GNOME 40, which will see the light of day as soon as next week, March 24th, 2021. However, it usually takes about two weeks for rolling-release distributions like Arch Linux and openSUSE Tumbleweed to offer the new desktop environment in their repositories.