2.1.0 follow-up (please don't squash / rebase!)

[travisbrown]

It's on its way to Maven Central, and the release notes are up.

If you're merging this, please only do it with a merge commit! The v2.1.0 release tag points to one of these commits, and if it's not on master we'll have to force-push the tag and 2.1.x branch to clean things up.

[codecov-io]

Codecov Report

Merging #3219 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3219   +/-   ##
=======================================
  Coverage   93.05%   93.05%           
=======================================
  Files         376      376           
  Lines        7412     7412           
  Branches      192      192           
=======================================
  Hits         6897     6897           
  Misses        515      515

Flag	Coverage Δ
#scala_version_212	93.38% <ø> (ø)	⬆️
#scala_version_213	92.82% <ø> (+0.02%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c752844...0b94a01. Read the comment docs.

[travisbrown]

Here's the failure:

failing seed for commutativeGroup.associative is 5Cpq4ARTgSX9BY6L-WmlPVyLX_QYb5Fwiq7QbZkXmAN=
[info] - CommutativeGroup[BigDecimal].commutativeGroup.associative *** FAILED ***
[info]   GeneratorDrivenPropertyCheckFailedException was thrown during property evaluation.
[info]    (Discipline.scala:12)
[info]     Falsified after 54 successful property evaluations.
[info]     Location: (Discipline.scala:12)
[info]     Occurred when passed generated values (
[info]       arg0 = 6.776080345405901E-124,
[info]       arg1 = -3.6430277055389425E-115,
[info]       arg2 = 6.255170362194973E-95
[info]     )
[info]     Label of failing property:
[info]       Expected: 6.255170362194972999963569723012372E-95
[info]   Received: 6.255170362194972999963569723012371E-95

Restarting that job now.