TLS upgrade and duplicati compatibility is discontinuing support for TLS1.1 as of March 31, 2020 and has warned that box compatible apps will fail to login in varying ways if they are dependent on that. I’m wondering if the supports TLS1.2+ or only supports TLS1.1?

Thanks for your help!

Duplicati seems to support up to TLS 1.3. You can configure which TLS protocols are allowed using the --allowed-ssl-versions option:

Duplicati doesn’t do its own TLS, but Windows 10 should do fine. Older ones might need help. On Linux, you need mono to be version 5 or above anyway for Duplicati, and that will get you past TLS 1.1.