AWS lists October 2026 Corretto updates for six Java release lines

An AWS notice published on October 23, 2026 lists quarterly security and critical updates for six Amazon Corretto Java release lines. The notice says Amazon announced the updates on October 22 and that the builds are available for download. AWS describes Corretto as a no-cost, multi-platform, production-ready distribution of OpenJDK. AWS notice

Available builds and Linux update channels

AWS lists the following builds:

The notice also says Linux users can obtain the updates by configuring a Corretto Apt, Yum or Apk repository. Builds and availability

What to check before rollout

Start with a runtime inventory. Match each deployed Corretto major version to its corresponding patch build, and track patch deployment separately from any planned migration to a different Java major version.

A practical rollout checklist:

• Inventory application hosts, CI runners and container images separately.
• Plan package updates or image rebuilds as appropriate for each deployment.
• Exercise representative workloads before broad deployment.
• Verify the runtime version actually used by applications after rollout.

The AWS notice does not enumerate vulnerabilities or severity ratings. Treat its version list as an availability reference, not an assessment of risk for a particular installation. When prioritizing patches, consult the relevant release notes and security advisories rather than assuming identical exposure across all six lines. Announcement scope