grpc library - How to decide at run time to opt for specific TLS version (1.2 or 1.3)

[Manish Khandelwal]

Hi Grpc Dev Team, 

Facing one issue:

Which grpc version is having support to choose TLS version at run time? Such that application can configure which TLS version (1.2 or 1.3) to use for secure communication. Is this already supported, if yes then which grpc version need to pick and how to configure the tls version.

grpc v1.30.0 supports only TLSv1.2 grpc v1.32.0 supports TLSv1.3

Didn't found any option to configure TLS version at for application at run time. Please help me out in getting the details like which grpc library supports this option to configure TLS version at run time. And how to configure it.

Thanks 

Manish Khandelwal