The update system, Sparkle, does not currently support sandboxed applications, and will fail to download the update and replace the executable. However:
It might be possible to support app store Textual by having the update system merely display a download link on an update, this could be achevied by using a seperate appcast file for this version using a link tag instead of an enclosure tag. (http://sparkle-project.org/documentation/publishing/) and dynamically calling setFeedURL on startup.
The update system, Sparkle, does not currently support sandboxed applications, and will fail to download the update and replace the executable. However:
It might be possible to support app store Textual by having the update system merely display a download link on an update, this could be achevied by using a seperate appcast file for this version using a link tag instead of an enclosure tag. (http://sparkle-project.org/documentation/publishing/) and dynamically calling setFeedURL on startup.