Compiler and CRT
VS 2019 Update 2 includes a new version of the C/C++ compiler (19.22.27905.0). This includes additional C++20 draft library features and other bug fixes.
The C/C++ Runtime (14.22.27821) is included in this update. Remember that VS 2015, VS 2017, and VS 2019 share the same runtime redistributable binaries and are binary compatible.
The VS 2019 C/C++ Runtime DLLs includes
vccorlib140.dll. VS 2019 16.2 adds
msvcp140_codecvt_ids.dll. Use of OpenMP also requires
A number of improvements were made for code generation, Standard Library performance, and link times in this update. There were also a number of optimizations made specifically with game performance in mind.
Known Issue: There is a known issue for VS 2019 RTM/Update 1/Update 2 when using my Direct3D Game project templates on GitHub. If you have VS 2017 installed as well, it works. Otherwise you need to edit your
devenv.exe.config. See here for the details. This issue is fixed in Update 3.
Known Issue: There is a known issue with DirectXMath where the
IsNan tests can fail when building with
/fp:fast due to new optimizations. This is fixed when using DirectXMath 3.14 in combination with Update 3.