Seems to be some fairly minor fixes, none of which have affected me... Just going to save myself the hassle of trying to plug a USB stick into the back of my wall mounted TV and just wait for the OTA.
Hey, we have the exact same TV!
... And I had to update via USB.
For those wondering, this looks to be an update for Sony Android TVs, though not sure which ones since OP decided to omit that information.