Description

In many pages of CSFLE documentations (core doc + driver docs), I find this:

Problem: it's not true & confusing. CSFLE is actually for 4.2 and up. Not just 4.2. It needs to be clearer that this feature was added in 4.2 and it's for EA or Atlas starting from 4.2 and up.

Examples:
https://docs.mongodb.com/manual/core/security-automatic-client-side-encryption/
https://docs.mongodb.com/manual/reference/security-client-side-automatic-json-schema/
https://docs.mongodb.com/manual/reference/security-client-side-query-aggregation-support/
https://docs.mongodb.com/manual/reference/security-client-side-encryption-appendix/

In the Java Driver doc, it doesn't mention Atlas at all
https://mongodb.github.io/mongo-java-driver/4.2/driver/tutorials/client-side-encryption/

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)