Version 19.0 of the Microsoft OLE DB Driver for SQL Server has been released. Version 19.0 includes changes and new features that improve security in the driver.
Features
Support for TDS 8....
Published Feb 15, 2022
Version 1.0
Blog Post
This is indeed a breaking change. In testing this, neither Encrypt=Yes or Encrypt=Mandatory cause the connection to be encrypted. Only using "Use Encryption For Data=True" actually encrypts the connection.