There is no official "Xilinx Vivado 2020.2 Fixed" as a separate product. However, this likely refers to:
report_environment
C. The Unified IDE While 2020.1 introduced the new look, 2020.2 made it usable. The interface moved closer to a standard Microsoft Visual Studio style editor. xilinx vivado 20202 fixed
that caused intermittent hangs during configuration reads was finally squashed. The 99% Stall: Many users reported the Block Design generator There is no official "Xilinx Vivado 2020
Implementation Crashes: Some users experience crashes during phys_opt_design. A temporary fix is to write a checkpoint after placement, then manually restart the flow from that point. xilinx vivado 20202 fixed