Monoidal containers

0.4.0.0

General changes:

• Added support for unordered-containers < 0.2.8
• Added many more functions in Data.Map.[Strict.]Monoid

Weakened Monoid constraints to Semigroup whenever possible as enabled by the Semigroup-Monoid proposal. This includes,

• the Monoid instance of MonoidalHashMap and MonoidalMap
• the IsList instance of MonoidalHashMap and MonoidalMap
• the modifyDef and mapKeys functions of MonoidalHashMap

0.3 and earlier

Pre-history