Today, the Gear Manager app, which is used to connect a Smartphone with the Gear Smartwatches, has been updated to version 2.2.16022241. The listed changelog says that support has been Introduced for the Gear Circle, but that happened back in September 2015, so that doesn't seem that accurate. The last update was over a month ago for version 2.2.16011842.
One thing that does seem new is that you now have the option of switching over to the last used app when double pressing the home button, which is a feature that has been requested by quite a few of our readers. Most likely there are other performance and general fix improvements for both Samsung Galaxy Smartphones and non-Samsung Smartphones as well. The update measures in at 32.3 MB.
If you do not get a notification to update the app you can do it manually by following the Instructions below: