Reference
Queryable Encryption with equality queries is generally available (GA) in MongoDB 7.0. To use Queryable Encryption, upgrade MongoDB to version 7.0 with compatible drivers. The Queryable Encryption Public Preview released with MongoDB 6.0 is no longer supported, and is incompatible with the GA feature. For more information, see the MongoDB 7.0 compatibility notes.
Read the following sections to learn about components of Queryable Encryption: