> Every Google Play update prompt in My Apps has a description provided by the publisher.

I hate to reply like this but, the vast majority of Google Play app updates go something like this:

"Updates."

"Fixes"

"..."

Having genuine changelogs would be glorious.

Apple and Google should require proper source and issue management, they could then generate changelogs automatically. Having that, they could then use machine learning against the code commits and issue titles to ensure that what people say are happening, are actually happening in the code.

I mean we've got ML that can generate code from natural language, I'm sure the bright sparks at Google and Apple could use some ML to, with a high degree of probability, say that the code does what the comment/issue says it does.