See also http://pvp.haskell.org/faq

## 0.95.2.1

- Allow `base-4.15` (GHC 9.0)

- Workaround for `{-# LANGUAGE Haskell2010 #-}` parser regression introduced in GHC 9.0

- Optimization flag `-O2` has been removed

## 0.95.2.0

- Declare `Text.Regex` module `Trustworthy` under SafeHaskell
