The complete lack of concrete information and the fact that the "incident" applies to only one user suggests something was discovered that triggered the company lawyers to engage cover-your-ass mode.
The alternative explanation would be that Spotify has adopted a total transparency policy that includes even the smallest of incidents, but the total lack of information about what the Android update actually changes doesn't support that.
Given that they are only urging Android users to update, it looks like this isn't a new version, but rather a hotfix for some issue that only existed in the Android app.
The alternative explanation would be that Spotify has adopted a total transparency policy that includes even the smallest of incidents, but the total lack of information about what the Android update actually changes doesn't support that.
Am I missing something here?