Amazon Aurora MySQL 8.4.8 (compatible with MySQL 8.4.8) is now generally available

<p>Starting today, Amazon Aurora MySQL-Compatible Edition 8.4 will support MySQL 8.4.8. In addition to several security enhancements and bug fixes, Aurora MySQL 8.4.8 includes several improvements, such as support for post-quantum TLS (PQ-TLS) key exchange, transaction timeout, multi-source replication, and delayed replication. PQ-TLS provides you with post-quantum cryptography options for encrypting your data in-transit. Transaction timeout helps prevent performance issues caused by long-running transactions blocking innoDB purge.</p> <p>Multi-source replication allows consolidation of data from multiple sources into a single replica to enable critical use-cases, such as merging shards, reporting, and backups. Delayed replication lets you set a configurable replication lag to protect against accidental data loss. To learn more about these replication features, please refer to the <a href="https://aws.amazon.com/about-aws/whats-new/2026/09/amazon-aurora-mysql-multisourcerep-delayedrep/" target="_blank" rel="noopener noreferrer">launch announcement</a>. For more details, refer to the <a href="https://docs.aws.amazon.com/AmazonRDS/latest/AuroraMySQLReleaseNotes/AuroraMySQL.Updates.84Updates.html" target="_blank" rel="noopener noreferrer">Aurora MySQL 8.4</a> and <a href="https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-8.html" target="_blank" rel="noopener noreferrer">MySQL 8.4.8</a> release notes.</p> <p>You can upgrade your databases during scheduled maintenance windows using automatic minor version upgrades. To simplify operations at scale, enable <a href="https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraMySQL.Updates.AMVU.html" target="_blank" rel="noopener noreferrer">automatic minor version upgrades</a> and use the AWS Organizations <a href="https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Maintenance.AMVU.UpgradeRollout.html" target="_blank" rel="noopener noreferrer">Upgrade Rollout Policy</a> to orchestrate upgrades across your clusters in phases. You can perform minor version upgrades in-place or via snapshot restore. This release is supported in all <a href="https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Concepts.RegionsAndAvailabilityZones.html#Aurora.Overview.Availability.MySQL" target="_blank" rel="noopener noreferrer">AWS Regions</a> where Aurora MySQL is available.</p> <p><a href="https://aws.amazon.com/rds/aurora/" target="_blank" rel="noopener noreferrer">Amazon Aurora</a> is designed for high performance and availability at global scale with full MySQL compatibility. It provides scale-to-zero serverless compute, Aurora Global Database for multi-Region resilience, Aurora I/O-Optimized for improved price performance on I/O-intensive workloads, and built-in security and continuous backups. To get started, take a look at Aurora’s <a href="https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/CHAP_AuroraOverview.html" target="_blank" rel="noopener noreferrer">getting started page</a>.</p>