OpenSearch Release Notes

2.19.0_25.9.0_1210

New features and performance enhancements:

• ISM reliability hardening: added support for automatic retry of failed tasks.
• ISM rollover optimization: auto rollover can be disabled for empty indexes.
• Optimized disk and striped storage configuration for nodes.
• Added OpenSearch Dashboards availability and health check.
• Fixed the following issue: The map page cannot be saved due to incorrect Kibana mapping.
• Added support for the High Level Rest Client (elasticsearch-rest-high-level-client) that comes with Elasticsearch 7.x.
• Added support for password validity period management and machine-machine account management.
• Added support for node-level query traffic isolation.
• Added support for JDK SIMD optimization.
• Enhanced the read/write splitting feature.
• Fixed the following issue: Indexes previously associated with the ism_template, after they are removed, are automatically re-associated with the template.
• Fixed the following issue: For a security-mode cluster, the first request during each hour incurs an additional latency of 300 ms.
• Any attempt to enable read/write splitting for a frozen index will be blocked.
• Any attempt to freeze a vector index or an index with read/write splitting enabled will be blocked.
• Optimized asynchronous closing of index shards.
• Fixed the following issue: Following a cluster restart, data fails to be written into primary shards. This issue occurs at a low probability

2.19.0_25.6.3_0916

New features and performance enhancements:

Resolved the following issue: reverse synchronization fails after "setting" is enabled for the read/write splitting plugin.

2.19.0_25.6.1_0905

New features and performance enhancements:

• Resolved the following issue: Query Insights sometimes causes cluster access requests to get stuck.
• Enabled Elasticsearch client compatibility by default.
• Resolved the following issue: synchronization of matched indexes fails for the read/write splitting plugin.

2.19.0_25.6.0_0814

Added the new version OpenSearch 2.19.0. This version integrates the unique enhancements of CSS into the open-source OpenSearch 2.19.0 release.

2.17.1_25.6.0_0814

Upgraded the base image version.

2.17.1_25.3.0_0407

The same as OpenSearch 2.17.1 in the open-source community.

1.3.6_25.9.0_1210

New features and performance enhancements:

• ISM reliability hardening: added support for automatic retry of failed tasks.
• ISM rollover optimization: auto rollover can be disabled for empty indexes.
• Optimized disk and striped storage configuration for nodes.
• Added OpenSearch Dashboards availability and health check.
• Added support for the High Level Rest Client (elasticsearch-rest-high-level-client) that comes with Elasticsearch 7.x and 8.x.
• Fixed the following issue: Indexes previously associated with the ism_template, after they are removed, are automatically re-associated with the template.
• Fixed the following issue: For a security-mode cluster, the first request during each hour incurs an additional latency of 300 ms.
• Any attempt to enable read/write splitting for a frozen index will be blocked.
• Any attempt to freeze a vector index or an index with read/write splitting enabled will be blocked.

1.3.6_25.6.0_0814

New features and performance enhancements:

• Removed sensitive information from ClusterState for OpenSearch clusters.
• Optimized permission control for the security plugin.
• Enhanced ISM reliability concerning the circuit breaker mechanism.
• Resolved the following issue: lifecycle management tasks cannot be executed once the disk space usage exceeds 95%.
• Resolved the following issue: the backup and restoration plugin occasionally fails to create a repository.
• Resolved the following issue: admin permissions are lost after the built-in role mapping is modified.
• Resolved the following issue: when a process is restarted to rectify OpenSearch parameter errors, its status flag is incorrectly set to successful.

1.3.6_25.3.0_0407

New features and performance enhancements:

• Removed some residual settings for plugins when restoring indexes.
• Fixed the following issue: The breaker of a security-mode cluster is inconsistent with the Elasticsearch design.
• Optimized node lockout mechanism: To prevent specific nodes from being locked due to repeated incorrect password attempts, add their IP addresses to a whitelist.
• Added write failure monitoring.
• Added the Pangu search plugin to implement semantic search.
• Fixed the following issue: The IK dictionary file may not take effect on new nodes upon an upgrade or scale-out operation.

1.3.6_25.1.0_0227

New features and performance enhancements:

• Added a node alarm to indicate abnormality of the filesystem tune2fs.

  Fixed the following issue: File handles may fail to be released promptly during log ingestion.

• Fixed the following issue: Process restart may occur when a _msearch query is canceled.