I found on the net but for china version of the box.i dont know are ours FW change log are the same....so...
Futeko wil know better
Google translate:
1. fix front panel and in some cases show "----" problem
2. fix playback HDR source in some cases, crash problems
3. optimize subtitle compatibility, solving some of the subtitles are out of sync and some ass subtitles cannot display problem
4. optimize local video playback, improving the 23.976 source output display problem
5. optimization of online and local playback, part of the solution source above the occasional playback black screen problem
6. optimized the HDR10 compatibility, solve the HDMI connections on TV after exiting the HDR source color distortion problems
7. optimize the video player, LGE format video playback support, improved the menu description
8. the way of optimization system for network time
9. color space set in advanced settings could not be saved problem
10. solve the system UI occasionally stop running problems
11. addressing the advanced settings in the account section text display problem
12. download APK download show no clear problem
13. automatic playback black screen picture problem
14. solve the problem of input pop-up upgrade box
15. update on mango TV Internet TV application
16. synchronous updating system settings, play, record, one-click direct, applications such as search, versions, optimizing the operational details of experience