.net 4.8 c# language version July 8, 2019 16 32 64 128 .net framework 4.8 c# language version .net framework 4.8 c# language version 8 .net 4.8 1 c# language version .net framework 4.8.1 c# language version .net language Net framework 4.8 download windows 7 Install .net 4.8 .net framework 4