[tome]

Clojure people use the untyped equivalent of row types, i.e. being able to arbitrarily add and remove fields to and from a record. That would be nice to have in Haskell (though personally it's nowhere near a dealbreaker for me).

[Peaker]

Haskell has reasonable implementations of row types as well.

[tome]

A bold claim!

[Peaker]

There are various library-level implementations. Here's the first one that turned up on Google:

https://raw.githubusercontent.com/target/row-types/master/ex...