On my H140 with Rockbox v4.0 while seeking while file is played or on pause the backlight fades away as if no key is pressed - which of course there is when seeking. With v3.15 it stayed on and only the faded away after the set time when seeking was stopped.
This seems to be a bug more so than a new feature when searching through the "major changes" list of v4.0.
Anyone else noticed this change in v4.0?