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<p>If you are running non-Dedicated Atlas Clusters (M0, M2 or M5) that are running MongoDB v4.x, these are slated to be upgraded in mid-February to v5.0.</p>
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<p>If you do nothing, the upgrade will happen automatically.</p>
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<p>If you don't wish these clusters to have their MongoDB version upgraded, you can upgrade the Cluster Tier itself to M10 or greater. </p>
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