Yeah I have one specific enterprise app (the updater service for another piece of software) that will not work unless TLS 1.1 is turned on at the OS level. It doesn't do anything with it, but some hard coded phone-home function in the software must fire up each time it checks for updates (even though it doesn't use TLS for the connection, but unencrypted FTP) or it will hard fail and not even log the failure.