September 26th OS Update

:exclamation: Important: Starting August 5th 2025, Appstore app submissions must be built using Kepler SDK v0.20 or newer, or the submission will be rejected.

This release has no updates to the installed SDK itself, but there are several OS level improvements and bug fixes.

You can check your device software version by navigating to My Fire TV > About on your device. For this release, it should be OS 1.1 (1001010443450).

OS improvements and bug fixes

  • Fixed guide channel descriptions not displaying in correct localized language for Japanese/German regions
  • Fixed blank screen issue when exiting from channel playback in Live TV tab
  • Fixed device unresponsiveness and remote button press issues after long idle periods
  • Fixed black screen issue after launching streaming app when using specific video playback patterns
  • Fixed green screen display issue occurring during continuous app launches after extended usage
  • Other OS improvements and performance optimizations