I got a bit excited when I saw this new update to BlackBerry Bridge show up on my device. Usually BlackBerry Bridge updates are precursors to new BlackBerry PlayBook OS updates. Turns out this one is just a small update from v188.8.131.52 to v184.108.40.206. It is intended to specifically:
Address a bug where “Add new tablet” button does not appear on some devices.
If you are running into that issue you can update BlackBerry Bridge in App World