The latest version of Embarcadero RAD Studio is 10.4.2. This was promised in the most recent Embarcadero road map for “first half of 2021”.
It’s available now !
https://blogs.embarcadero.com/announcing-the-availability-of-rad-studio-10-4-2-sydney-release-2/
For those that missed the “what’s in 10.4.2” webinar (see previous blog) this is now available as a replay on YouTube at