Recognizing the growing importance of security, .NET 4.7 expanded its support for modern cryptographic standards. A significant enhancement was the ability to configure default message security settings for Transport Layer Security (TLS) 1.1 or TLS 1.2 protocols, helping applications become more secure by default.

For developers, .NET Framework 4.7 added support for the latest versions of C# (version 7) and Visual Basic (version 15) at the time of its release. This enabled the use of more expressive and efficient coding patterns.

The process is straightforward but often requires a system reboot to finalize changes.

Default support for Transport Layer Security (TLS) 1.2 protocols.

: Errors regarding invalid digital signatures or root certificates.