We haven't gotten anything saying when it will stop working on Windows 10 so far. 

Thank you for choosing TurboTax.

I have been informed, via a related post in 'Community',that TurboTax- Canada (On-Line) is available in 'Premier' version (required for Rental Property Income) , that it needs only a current version of a 'Browser' (Chrome, Firefox, Edge ...), in my case, Firefox. The program is not installed locally, thus it is NOT OS DEPENDENT {in my case, Linux Mint }.

I've been a Happy User of TurboTax -Canada since 2018, hopefully to continue. We'll see at 'Tax Time'.

Thank you for your feedback.