Important
.NET Framework content previously digitally signed using certificates that use the SHA1 algorithm, will be retired in order to support evolving industry standards.
The following versions of .NET Framework will reach end-of-support on April 26, 2022: 4.5.2, 4.6, and 4.6.1. After this date, security fixes, updates, and technical support for these versions will no longer be provided.
If you're using .NET Framework 4.5.2, 4.6, or 4.6.1, update your deployed runtime to a more recent version, such as .NET Framework 4.6.2, before April 26, 2022 in order to continue to receive updates and technical support.
Updated SHA2 signed installers will be available for .NET Framework 3.5 SP1, and 4.6.2 through 4.8. For more information, see the SHA1 retirement plan, the .NET 4.5.2, 4.6, and 4.6.1 lifecycle update blog post, and the FAQ.