Patch apps for update about appimageupdate HOT 2 CLOSED

To add some more context, the zsync file mentioned by @probonopd is what allows AppImageUpdate to update. This file must be provided by somebody (typically the application's authors). Also, AppImageUpdate requires update information (i.e., it needs to be told where to find said zsync file). This information is typically contained within the AppImage. This is recommended for any AppImage. However, not every AppImage's authors take care of this.

TL;DR: If you find an AppImage does not support AppImageUpdate, please ask the application's authors to support AppImageUpdate. We provide all necessary information in our documentation.

from appimageupdate.

Application authors need to put update information into the AppImage when making it, and need to upload the zsync file alongside the AppImage for it to work.

from appimageupdate.