Deprecation: Aiven for OpenSearch® 2.17

Aiven for OpenSearch® version 2.17 will reach its end-of-life (EOL) on July 26, 2026. Following our multi-minor version support period, we are transitioning all services to version 2.19 to ensure your environment remains compatible with future releases.

Key timeline

• End-of-Life (EOL) date: July 26, 2026
• Automatic upgrades: Starting July 26, 2026, any services remaining on version 2.17 will be automatically upgraded to version 2.19 during their next scheduled maintenance window.

Why upgrade to 2.19?

Upgrading to version 2.19 is a proactive step for your infrastructure:

• Path to major version 3: Version 2.19 serves as the essential "jump version" required for the future upgrade to OpenSearch major version 3, which will bring significant performance improvements.
• Long-term stability: Version 2.19 is the current stable standard on the Aiven platform, offering the latest bug fixes and features over 2.17.

Recommended actions

We recommend manually upgrading your services before the July deadline to ensure a controlled transition:

1. Test via forking: Use the Aiven fork feature to clone your 2.17 service into a 2.19 instance. This allows you to verify application compatibility without affecting production data.
2. Review documentation: Check the OpenSearch breaking changes guide for any minor breaking changes between 2.17 and 2.19.
3. Perform manual upgrade: Follow our upgrade guide to trigger the version change at your convenience.