Even though you should get the latest Android Wear 2.0 update automatically (over-the-air starting February 15, 2017), it may take awhile. To perhaps speed things up you can make sure everything relevant is updated & manually check for System updates.
Start by connecting both your smartwatch & phone to their chargers & make sure they are connected (preferably via WIFI). Then go to Settings → About → System updates on your watch. If you got an update, install it. If it turns out to be a security patch update, install it and then check for System updates again.
If/when no new System updates is found, try the following on your phone:
- Update your phone system (check for System updates)
- Verify you got the latest update for the Android Wear app by Google
- Open the Android Wear app & go to Settings → Your Watch and tap on Resync apps
After you’ve resynced apps, wait 5 minutes and then try a System updates check again on your watch. Hopefully you got the new Android Wear 2.0 update.
The first watches to get Android Wear 2.0 will be the Huawei Watch 2, LG Watch Urbane 2, LG Watch Sport and LG Watch Style, but eventually all (almost) Android Wear watches should get it. It is not clear, however, how fast (or slow) this update process will be. The 2.0 update will be rolled out during an unknown number of weeks after February 15, and the exact date for each smartwatch will probably be up to each manufacturer.
In any case it doesn’t hurt to try the above now and then after February 15.
Here’s a video with 3 watch faces (including Ksana Sweep) that supports Android Wear 2.0.