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Select the MongoDB Version of the Cluster

M0 Free Tier and M2/M5 shared-tier clusters only support MongoDB 4.0.

Atlas supports creating M10+ paid tier clusters with the following MongoDB versions:

  • MongoDB 3.4
  • MongoDB 3.6
  • MongoDB 4.0
  • MongoDB 4.2

M0 Free Tier and M2/M5 shared-tier clusters only support MongoDB 4.0.

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

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.

Important

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.