I found this tweet from the Tweetbot developers even more significant, there was no way they could upload a patched old version to the Mac App Store to fix it:

I found this tweet from the Tweetbot developers even more significant, there was no way they could upload a patched old version to the Mac App Store to fix it: https://twitter.com/tapbot_paul/status/664822849534754816 https://twitter.com/tapbot_paul/status/664822849534754816