Long-term support (LTS) and beta releases for Amazon Aurora MySQL
Aurora MySQL provides long-term support (LTS) and beta releases for some Aurora MySQL engine versions.
Aurora MySQL long-term support (LTS) releases
Each new Aurora MySQL version remains available for a certain amount of time for you to use when you create or upgrade a DB cluster. After this period, you must upgrade any clusters that use that version. You can manually upgrade your cluster before the support period ends, or Aurora can automatically upgrade it for you when its Aurora MySQL version is no longer supported.
Aurora designates certain Aurora MySQL versions as long-term support (LTS) releases. DB clusters that use LTS releases can stay on the same version longer and undergo fewer upgrade cycles than clusters that use non-LTS releases. Aurora supports each LTS release for at least three years after that release becomes available. When a DB cluster that's on an LTS release is required to upgrade, Aurora upgrades it to the next LTS release. That way, the cluster doesn't need to be upgraded again for a long time.
During the lifetime of an Aurora MySQL LTS release, new patch levels introduce fixes to important issues. The patch levels don't include any new features. You can choose whether to apply such patches to DB clusters running the LTS release. For certain critical fixes, Amazon might perform a managed upgrade to a patch level within the same LTS release. Such managed upgrades are performed automatically within the cluster maintenance window.
We recommend that you upgrade to the latest release, instead of using the LTS release, for most of your Aurora MySQL clusters. Doing so takes advantage of Aurora as a managed service and gives you access to the latest features and bug fixes. The LTS releases are intended for clusters with the following characteristics:
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You can't afford downtime on your Aurora MySQL application for upgrades outside of rare occurrences for critical patches.
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The testing cycle for the cluster and associated applications takes a long time for each update to the Aurora MySQL database engine.
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The database version for your Aurora MySQL cluster has all the DB engine features and bug fixes that your application needs.
The current LTS release for Aurora MySQL is the following:
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Aurora MySQL version 3.04.*. For more details about the LTS version, see Database engine updates for Amazon Aurora MySQL version 3 in the Release Notes for Aurora MySQL.
Note
We recommend that you disable automatic minor version upgrades for LTS versions. Set the AutoMinorVersionUpgrade parameter to
false, or clear the Enable auto minor version upgrade check box on the Amazon Web Services Management Console.
If you don't disable it, your DB cluster could be upgraded to a non-LTS version such as 3.05.2.
Aurora MySQL beta releases
An Aurora MySQL beta release is an early, security fix–only release in a limited number of Amazon Web Services Regions. These fixes are later deployed more broadly across all Regions with the next patch release.
The numbering for a beta release is similar to an Aurora MySQL minor version, but with an extra fourth digit, for example 2.12.0.1 or 3.05.0.1.
For more information, see Database engine updates for Amazon Aurora MySQL version 2 and Database engine updates for Amazon Aurora MySQL version 3 in the Release Notes for Aurora MySQL.