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Select the MongoDB Version of the Cluster

Atlas supports creating clusters with the following tiers and MongoDB versions:

MongoDB VersionSupported on M10+Supported on Free and Shared Tiers (M0, M2, M5)
MongoDB 3.6
MongoDB 4.0
MongoDB 4.2
MongoDB 4.4
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MongoDB 4.4 on Shared Tier Clusters

You can deploy MongoDB 4.4 in Atlas free and shared-tier clusters (M0, M2 and M5) only in AWS region us-east-1.

As new maintenance releases become available, Atlas upgrades to these releases via a rolling process to maintain cluster availability.

To learn more about how Atlas handles end of life of major MongoDB versions, see What happens to Atlas clusters using a MongoDB version nearing end of life?.

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Before you upgrade your cluster, refer to the current recommended best practices for major version upgrades.

To select the MongoDB version for your cluster, use the dropdown in the Additional Settings section of the cluster form:

Image showing version selection

You can upgrade an existing Atlas cluster to a newer major MongoDB version, if available, when you scale a cluster. However, you cannot downgrade a cluster's MongoDB version.

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If your project contains a custom role that uses actions introduced in a specific MongoDB version, you cannot create a cluster with a MongoDB version less than that version unless you delete the custom role.

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