This ticket addresses the v5.0-v7.0 fixes. The v4.4 issue is being addressed in DOCS-16616.

4.4
https://www.mongodb.com/docs/v4.4/reference/operator/aggregation/lookup/#std-label-equality-match-performance

The text for the first row should be corrected as this:

$lookup operations that perform equality matches with a single join typically perform better when the foreign collection contains an index on the foreignField.

5.0-7.0
https://www.mongodb.com/docs/v5.0/reference/operator/aggregation/lookup/#performance-considerations
https://www.mongodb.com/docs/v6.0/reference/operator/aggregation/lookup/#performance-considerations
https://www.mongodb.com/docs/manual/reference/operator/aggregation/lookup/#performance-considerations

correct text for the first row

$lookup operations that perform equality matches with a single join typically perform better when the foreign collection contains an index on the foreignField.

remove the second bullet