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Amazon Aurora MySQL 8.4 is now generally available

Published
May 21, 2026
https://aws.amazon.com/about-aws/whats-new/2026/05/amazon-aurora-mysql/8-4/

Amazon Aurora MySQL-Compatible Edition

Amazon Aurora MySQL-Compatible Edition now supports MySQL 8.4, a community MySQL Long Term Support (LTS) major version. Aurora MySQL 8.4 launches with compatibility for community MySQL 8.4.7 and introduces aligned version numbering, so the version number you run on Aurora matches the community MySQL version it is compatible with. Aurora also manages the underlying patch on your behalf, simplifying day-to-day operations.

Aurora MySQL 8.4 strengthens security defaults for new clusters. TLS is enforced by default with only TLS 1.2 and 1.3 supported, new accounts use the caching_sha2_password authentication plugin, and password validation policies are customizable through DB cluster parameter groups. Automated upgrade prechecks identify compatibility issues before your cluster goes offline, giving you confidence before you upgrade.

What to do

  • Upgrade your database using Amazon RDS Blue/Green Deployments, in-place upgrade, or restore from a snapshot.
  • Migrate to Aurora MySQL 8.4 from external MySQL sources using AWS Database Migration Service or Percona XtraBackup.

Aurora MySQL 8.4 is available in all AWS Regions where Aurora MySQL is available.

Source: AWS release notes




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