https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-version-history
| C# version | VS version | .NET version | CLR version | Release date | End of Support | Unity |
|---|
| 12 | 2022 (17.8) | .NET 8 | . | Nov 2023 | Nov 2026 | |
| 11 | 2022 (17.4) | .NET 7 | . | Nov 2022 | May 2024 | |
| 10 | 2022 | .NET 6 | . | Nov 2021 | Nov 2024 | |
| 9 (†) | 2019 (v16.8) | .NET 5 | . | Nov 2020 | May 2022 | 2021.2 |
| 2019 (v16.4) | .NET Core 3.1 | . | Dec 2019 | Dec 2022 | |
| 2019 (v16.3) | .NET Core 3.0 | . | Sep 2019 | Mar 2020 | |
| 8.0 | 2019 | | . | Apr 2019 | | |
| | .NET standard 2.2 | . | Dec 2018 | Dec 2019 | 2020.2 |
| 7.3 | 2017 (v15.7) | .NET standard 2.1 | . | May 2018 | Aug 2021 | |
| 7.1 | 2017 (v15.3) | .NET standard 2.0 | . | Aug 2017 | Oct 2018 | |
| 7.0 | 2017 | | . | Mar 2017 | | |
| | .NET standard 1.1 | . | Nov 2016 | Jun 2019 | |
| 2015 Update 3 | .NET standard 1.0 | . | Jun 2016 | Jun 2019 | |
| == .NET Core | == .NET Core | == .NET Core | == .NET Core | == .NET Core | == .NET Core | |
| | 4.8.1 | 4 | Aug 2022 | . | |
| 8.0 | 2019 | 4.8 | 4 | Apr 2019 | . | |
| 7.3 | 2017 (v15.7) | | | May 2018 | . | |
| | 4.7.2 | 4 | Apr 2018 | . | |
| 7.2 | 2017 (v15.5) | | | Dec 2017 | . | |
| | 4.7.1 | 4 | Oct 2017 | . | |
| 7.1 | 2017 (v15.3) | | | Aug 2017 | . | |
| | 4.7 | 4 | May 2017 | . | |
| 7.0 | 2017 | | | Mar 2017 | . | |
| | 4.6.2 | 4 | Aug 2016 | . | |
| | 4.6.1 | 4 | Nov 2015 | . | |
| 6.0 | 2015 | 4.6 | 4 | Jul 2015 | . | |
| | 4.5.2 | 4 | May 2014 | . | |
| 2013 | 4.5.1 | 4 | Oct 2013 | . | |
| 5.0 | 2012 | 4.5 | 4 | Aug 2012 | . | |
| 4.0 | 2010 | 4.0 | 4 | Apr 2010 | . | |
| 3.0 | 2008 | 3.5 | 2.0 | Nov 2007 | . | |
| | 3.0 | 2.0 | Nov 2006 | . | |
| 2.0 | 2005 | 2.0 | 2.0 | Nov 2005 | . | |
| 1.2 | 2003 | 1.1 | 1.1 | Apr 2003 | . | |
| 1.0 | 2002 | 1.0 | 1.0 | Feb 2002 | . | |