Steam did similar when the Steam Controller was being retired, see this article on the Steam Community page.
Today’s Steam Client Beta includes the option to add Bluetooth Low Energy (BLE) functionality to your Steam Controller. This feature will be required to enjoy the upcoming Steam Link app, but you may find it handy for other reasons, too. I’d like to describe what this BLE connection can and cannot do compared to the existing wireless solution, steps to update your controller to add BLE support, and how to switch between wireless modes once the update is installed.