Hello Pascal,

a full image update of the AP is usually not required for the minor version updates (e.g. from to V13r2 SR). In this case Webserver and AP Manager are updated and custom changes of the linux subsystem are not overwritten.

In case of major version update it could be necessary to install a new linux image. This could affect your custom changes.

We have already a feature request regarding the audio files conversion in the Files App. I will give it an additional vote.

Best Regards

Andreas Fink