Yandex Managed Service for OpenSearch release notes

December 2025December 2025

• Added detailed metrics for disk usage on cluster hosts.
• Added execution details for operations on the cluster.
• The updated OpenSearch versions 3.3.2 and 3.4.0 improve the performance of queries with aggregation and fix a number of bugs, including the NPE error when executing bulk queries.

November 2025November 2025

Added the managed-opensearch.restorer role for restoring clusters from backups. To learn more, see Access management.

October 2025October 2025

Added new host classes on AMD Zen 4 and AMD Zen 4 HighFreq platforms.

July 2025July 2025

Now you can encrypt storage disks with a custom KMS key when creating a cluster and restoring it from a backup.

April 2025April 2025

• Implemented a new shard balancing algorithm. In addition to the number of shards and primary shards, it takes the amount of free space into consideration and can balance primary shards better than the standard algorithm.
• Added the option to specify a host group for data reads/writes via the X‑Yandex‑OpenSearch‑NodeGroup parameter in the request header.

October 2024October 2024

• Added support for the yandex-lemmer plugin for accurate search in Russian.
• A new OpenSearch version is out: 2.17.0.
• Added the session timeout option (Session timeout) to external authentication sources settings. Specify it if it is not set by the identity provider.

September 2024September 2024

Added automatic disk expansion. In the cluster settings, the user can set the disk storage usage threshold and maximum disk size. Upon reaching the threshold, the disk will automatically expand in fixed increments up to its maximum. You can choose to immediately expand the disk or to expand it during the next maintenance window.

April 2024April 2024

A new OpenSearch version is out: 2.12.0.

February 2024February 2024

Now you can manage OpenSearch clusters using the CLI commands and Terraform.

Q3 2023Q3 2023

Added the option of committing a specific volume of services. All platform users can get a discount up to 22% starting August 1, 2023. The cost of services will not change while the discount is in effect.