v1.3.1 (2018-08-19)

We found some issues with 1.3 (aggregators interacting with nulls/errors, primarily) that we didn't want to let sit until 1.4. So we fixed those issues and a couple others, and added a few 'minor' features. This patch version should be a definitive improvement over the base 1.3 version.

The complete list of changes is in the CHANGELOG. Here are the new options and features: