While this is great news for anyone who posts a lot of portrait-oriented photos (finally, your full outfit fits in!), it also means your existing grid may now look a bit... off. But don’t worry ...

If you thought you were seeing things wrong or your Instagram account was glitching, it's not you — and it’s not a glitch.

The Radio 3 documentary, Grid, explores the profound influence of these structures in art, music and society. Here are some examples which feature in the programme... The city has the repetition ...