0.1.3.0: [2018.05.23]

• remove dependency on constrictor.
• some doc fixes.

0.1.2: [2018.05.04]

• semirings now builds back to GHC-7.4.1.
• many doc fixes.

0.1.1: [2018.04.20]

• Remove unused coerce-util dependency.

0.1.0:

• Initial version.