Yes, the Z590 chipset officially supports both 10th Gen and 11th Gen Core processors. Intel made it clear that the Z590 motherboards are not essential for any existing 10th Gen user, however, they will offer a bit of an improvement over the slightly older Z490 motherboards if one were to pair the 10th Gen CPU with a Z590 board. It is commonly advised that users only buy the Z590 motherboards if they want to pair an 11th Gen CPU with that board and utilize it to its fullest potential.