Today, you US Cellular 8530 users are getting some OS love. OS 188.8.131.526 has been made official. No change logs are available. Since this is an official carrier release, things should be stable.
As always, make sure you have a good, current backup of your device before you upgrade.
Feel free to share your findings here or head over to our forums.
NOTE: You take full responsibility for loading this OS on your phone. Nerdberry.net will not be held responsible for any damages from loading this on your phone.
Source: The BerryFix