- Add Semigroup ExactPi instance.
- Bump base dependency.
- Fixed infinite loop in definition of negate.
- Added function for computing rational approximations of ExactPi values.
- Added simpler constraints for converting ExactPi types to terms with the minimal context.
- Added support for exactly comparing values.
- Added a type-level representation of ExactPi values.
- Fixed a bug in recip.
- Fixed approximation of exact values with a negative exponent for pi.
- Fixed a missing case in isZero.
- Added support for converting to exact integers or exact rationals.
- Removed dependency on groups package, since it appears not to be widely used.
- Fixed a missing case alternative in recip.
- Added support for GHC 7.8.