Community version of “Learn You a Haskell…” (https://learnyouahaskell.github.io/) — 2026 update

Quite right, thank you for pointing this out! In fact, we have had a ticket about it since 2022: State monad + other monads defined in transformers are out of date · Issue #7 · learnyouahaskell/learnyouahaskell.github.io · GitHub we’d be delighted to have someone contributing a fix for this!