MongoDB 5.2 is a rapid release and is only supported for MongoDB Atlas. MongoDB 5.2 is not supported for use on-premises. For more information, see MongoDB Versioning.
The following 5.2 changes can affect compatibility with older versions of MongoDB.
MongodB removes the following
Starting in MongoDB 5.2, you can use
db.collection.dropIndexes() to drop existing indexes on the
same collection even if there is an index build in progress. In earlier
versions, attempting to drop a different index during an in-progress
index build results in a