0.3.3

• Speed up Applicative / Alternative / MonadPlus instances.
• Speed up (>>=): add a trick to check whether a callback is const [].

0.3.2

• Add MonadFail instance.

0.3.1

• Add Alternative instance.

0.3

• Add MonadPlus instance.

0.2

• Change diagonal.

0.1

• Initial release.