Effective mid-2024, newly released Amazon EC2 instance types will use only version 2 of the EC2 Instance Metadata Service (IMDSv2), and AWS is taking steps to make IMDSv2 the default choice across various launch pathways as it provides additional security layers.

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<p>This article discusses the upcoming changes to the default usage of the Amazon EC2 Instance Metadata Service (IMDSv2) for newly released EC2 instance types. IMDSv2 provides enhanced security features and protection against vulnerabilities compared to the previous version, IMDSv1.</p>
<p>Specifically, the article covers:</p>
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<li>Background on the EC2 Instance Metadata Service and the differences between IMDSv1 and IMDSv2</li>
<li>A migration plan with key dates and milestones for the transition to IMDSv2 as the default</li>
<li>Recommendations for users to start migrating to IMDSv2, including using provided tools and resources</li>
<li>The plan for mid-2024, when newly released EC2 instance types will use IMDSv2 by default, but with the option to enable IMDSv1 if needed</li>
<li>Conclusion: AWS wants to ensure a smooth transition for users and provides support resources for assistance</li>
</ul>
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