Great news, all our ETL products support TLS 1.2 now.
That does not mean that the software is actually using it.
To enable it you have to install a lot of patches from Microsoft. they must be installed on both the client and the server.
https://support.microsoft.com/en-gb/help/3135244/tls-1-2-support-for-microsoft-sql-server
Then you have to enable TLS 1.2 and disable the rest of the protocols (on the server and client)
We recommend using IISCripto for it
https://www.nartac.com/Products/IISCrypto
And the last step is to reboot the computer