QEMU 4.1 is now out as one of the important pieces to the open-source Linux virtualization stack. On the RISC-V front are the Spike machine model, ISA 1.11 support, and support for CPU topology in device trees. On the x86 front, there is support for new Hygon Dhyana and Intel Snow Ridge CPU models as well as emulation support for the RdRand extension.
To read more, please visit https://www.phoronix.com/scan.php?page=news_item&px=QEMU-4.1-Released.