Amazon OpenSearch Service: OpenSearch 2.13 end of standard support

AWS provides bug fixes and security updates for versions under standard support. After 7 Nov 2027, OpenSearch 2.13 is no longer under standard support:

• For versions in extended support, AWS offers critical security fixes for at least 12 months after standard support ends.
• Extended support charges apply automatically when a domain runs a version that is no longer under standard support.
• The charge comes in addition to the standard instance cost. See the pricing page.

The same schedule also lists end of extended support dates.

1. Upgrade the domain to a supported version. AWS recommends the latest available OpenSearch version. See Upgrading Amazon OpenSearch Service domains.
2. Check Supported upgrade paths for your current and target versions. The table lists a target version for each starting version it covers. Its earliest Elasticsearch starting version is Elasticsearch 5.x. Some paths require an intermediate upgrade or reindexing first.
3. Take a manual snapshot of the domain as a backup.
4. Run the pre-upgrade check to find issues that could block the upgrade.
5. Choose an upgrade method that the page lists as available for your version. An in-place upgrade is available for domains that run OpenSearch 1.0 or later, or Elasticsearch 5.1 or later. AWS states that an in-place upgrade cannot be paused, canceled or rolled back. A clone-based upgrade is available for domains that run Elasticsearch 7.10 or OpenSearch 1.1 or later, for the upgrade paths and within the Region and domain limitations the page lists. AWS describes two ways to upgrade a domain, and the page lists neither as available for an Elasticsearch version earlier than 5.1.
6. If Amazon Data Firehose or Amazon CloudWatch Logs streams data to the domain, check that the service supports the newer version before migrating.