Add release notes for kgb 6.1.
Review Request #11800 — Created Aug. 20, 2021 and submitted
This is a feature release that focuses on some new spy capabilities:
- Nested operations inside
This will be a 6.1 release, in an effort to finally move to semantic
versioning. From here on out, 6.x will be the target for features, until
we need to break compatibility.
Viewed the rendered release notes. Checked for spelling errors.