Whoa wtf. I don't "wtf" a lot on HN but I had not noticed the whole spaces tab disappeared in the iOS app without an app update. A WTF both on the decision to remove it and that it can be removed without having to update the app.

Many apps have lots of feature flags that can be turned on and off based on what the API says.

Also used for things like A/B testing.

Ah, I developed an Android app back in 2012 with explicitly no permission to access the internet, so I think my app development experience was quite limited :-) Thanks for the heads up on how that works now.