"Since" information for `MonadFail` instances missing (haddock, CHANGELOG) - Githubissues

haskell / mtl

The Monad Transformer Library

http://www.haskell.org/haskellwiki/Monad_Transformers

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"Since" information for `MonadFail` instances missing (haddock, CHANGELOG) #105

Open andreasabel opened 2 years ago

andreasabel commented 2 years ago

After doing a bit of research, I conjecture that the MonadFail instances (e.g. for ReaderT) were added in mtl-2.2.1. However, this information isn't attached to these instances in the haddocks (e.g. https://hackage.haskell.org/package/mtl-2.2.1/docs/Control-Monad-Reader.html#v:fail), nor is it mentioned in the CHANGELOG (https://hackage.haskell.org/package/mtl-2.2.2/changelog).

Proposal:

[ ] add missing since information to the docs
[ ] also add to CHANGELOG