release [1.4.1]
Update Documentation Feature Flags [1.4.1]
Prepare for next development iteration (1.4.2-SNAPSHOT)
Versions: Add 1.3.7 constants
[Docs] Fix missing comma in mapping
top_hits aggregation: Fail with a parse exception if `top_hits` agg is defined under a `nested` agg.

Closes #8668
Closes #8673