Important
Binary downgrades are not supported for MongoDB Community Edition.
You cannot downgrade your Enterprise deployment's binary version without assistance from support.
To downgrade from 8.0 to 7.0, submit a request or contact your technical support representative.
MongoDB supports single-version downgrades along adjacent versions only. You cannot downgrade to a release that is multiple versions behind your current release.
For any versions, major or minor, you can upgrade or downgrade to its adjacent neighbors. For example, you can downgrade from 8.3 to 8.2 or upgrade from 7.0 to 8.0.
For all versions, major or minor, you can downgrade to the immediately previous major version. For example, from 8.3 to 8.0.
For any minor version, you can upgrade to the immediately next version. For example, from 8.2 to 8.3.