The random number generator "RNG" and crypto subsystem pull requests have already been submitted for the Linux 6.1 merge window.
Jason Donenfeld of WireGuard fame continues spending a lot of time working to clean-up Linux's RNG code. For Linux 6.1 the RNG code has seen a regression fix come around O_NONBLOCK that broke user-space some two years ago, a performance regression fix, using randomness from hardware RNGs earlier in the boot process, and a variety of other smaller changes to the RNG code that has been undergoing a lot of improvements as of late.
The full list of RNG changes for Linux 6.1 can be found viaThe link for this article located at Phoronix is no longer available.