Product updates

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  • Jan 20, 2026

    Upgrade to OpenSearch® 3.3.2

    OpenSearch® version 3.3.2 is now available for Aiven for OpenSearch services. Apply this version on your services to benefit from the major upgrade to version 3, which brings significant performance improvements, a modernized user experience, and powerful new capabilities, especially in observability and AI/ML-driven search.

    Highlights

    • OpenSearch Dashboards - redesigned experience
      • Unified observability experience (preview): A redesigned Discover interface in OpenSearch Dashboards brings log analytics and distributed tracing together, offering an all-in-one view for troubleshooting and monitoring. To ensure service stability, the new Discover experience is disabled by default while in beta for version 3.3. We plan to enable this by default once it reaches general availability (GA) in a future release. To enable this feature before its GA, contact your account manager.
      • Smarter visualizations: New features enable smarter, automated visualizations and more chart types, making data analysis faster and insights easier to obtain.
      • Discover traces: A dedicated, central interface for querying and exploring traces across your distributed systems.
    • Enhanced performance and core search
      • Lucene 10 upgrade (since v3.0): This core upgrade modernizes the search infrastructure, leading to improved indexing and search performance, and better efficiency.
      • Better hybrid search: Enhancements like Z-score normalization for result scoring provide more accurate and relevant results when combining different search methods.
      • Star-tree indexing improvements: Speeds up slow-running aggregations, particularly multi-terms aggregations, for large datasets.
    • Powerful analytics with piped processing language (PPL)
      • Apache Calcite integration (since v3.0): PPL now uses the Apache Calcite query engine by default, introducing better portability, optimization capabilities, and an extensive library of new PPL functions for data manipulation and analysis.
      • New PPL commands: Introduction of commands like timechart for time-series aggregation and enhanced functions like coalesce and mvjoin for complex data transformations.
    • Vector search enhancements: Continued improvements to vector search, including the new Seismic sparse retrieval algorithm for faster neural sparse search, supporting more sophisticated generative AI and semantic search applications.

    Supported upgrade paths

    • 1.3 → 2.19 → 3.3
    • 2.17 → 2.19 → 3.3

    To explore all changes and make your OpenSearch experience even better, review the following:

  • Jan 20, 2026

    • New
    • Aiven Operator for Kubernetes

    Aiven Operator for Kubernetes version 0.35.0 now available

    This release introduces significant updates including Kubernetes v0.28 support. The operator now requires Go 1.20+.

    A major change in this version is the complete removal of the Redis kind and controller from the operator, as Redis has reached end of life. Use Valkey instead for all caching services.

    Key enhancements in this release include:

    • Enhanced backup capabilities: Both Kafka and PostgreSQL now support configurable automatic backups with new fields for backup intervals and retention periods
    • Improved authentication: Kafka services now support Let's Encrypt certificate authorities for SASL authentication and SASL OAUTHBEARER with configurable allowed URLs
    • MySQL migration improvements: Added experimental database dump tool configuration and replication options for enhanced migration workflows
    • PostgreSQL high availability: New dedicated read-only DNS option that automatically falls back to primary when standby nodes are unavailable
    • Performance optimizations: Valkey I/O threads maximum increased from 32 to 256, and various field limits expanded

    For complete details on all changes and deprecations, check out the full Aiven Operator changelog.

  • Jan 19, 2026

    Follower fetching with rack awareness for Kafka Connect and MirrorMaker 2

    Follower fetching with rack awareness is now supported for Aiven for Apache Kafka® Connect sink connectors and Aiven for Apache Kafka® MirrorMaker 2 replication flows when enabled on the Aiven for Apache Kafka® service.

    Kafka Connect and MirrorMaker 2 automatically use the availability zone where each node runs to prefer reading from in-sync follower replicas in the same zone. This reduces cross-availability zone network traffic and associated costs.

    For Kafka Connect, this applies to sink connectors only. For MirrorMaker 2, follower fetching is enabled by default for new replication flows and can be disabled per flow.

    Learn more:

  • Jan 12, 2026

    • New
    • Aiven for Apache Kafka® Connect

    Oracle Debezium source connector available (Early availability)

    The Oracle Debezium source connector is available for Aiven for Apache Kafka® Connect as an Early availability feature. The connector streams change data from Oracle databases to Apache Kafka using Debezium and Oracle LogMiner.

    Supported functionality:

    • Change data capture (CDC) for Oracle tables using LogMiner.
    • Row-level inserts, updates, and deletes.
    • Integration with Schema Registry and Avro serialization.

    Limitations:

    • Large initial snapshots are not supported. The connector streams ongoing changes only.
    • Exactly-once delivery is not supported.

    To learn how to configure and use the connector, see the Oracle Debezium source connector documentation.

  • Jan 8, 2026

    • New
    • Aiven Terraform provider

    Aiven Provider for Terraform version 4.49.0 now available

    This version of the Aiven Terraform Provider introduces a new aiven_service_list data source that lets you list all services in a project, making service discovery and management easier.


    Other notable improvements in this release:

    • Enhanced Kafka topic handling with retry logic for 404 errors from the KafkaTopicListV2 endpoint
    • Added mysql_user_config.migration.reestablish_replication field for Aiven for MySQL services to skip dump-restore and start replication directly
    • Improved error handling for resources that weren't properly removing from state when deleted externally

    Additionally, the termination_protection field for aiven_mysql_database has been deprecated in favor of using Terraform's built-in prevent_destroy lifecycle rule.


    For more details on all changes and fixes, view the complete Aiven Provider for Terraform changelog.

  • Dec 18, 2025

    • New
    • Aiven for Valkey™

    Valkey™ JSON module now available on Aiven for Valkey™

    What's new

    The Valkey™ JSON module is now available for all Aiven for Valkey™ services. This module extends Valkey features with advanced JSON data handling capabilities.

    Key features

    • Native JSON storage: Store JSON documents as values directly in Valkey
    • JSONPath queries: Query JSON documents using standard JSONPath syntax
    • Atomic updates: Make atomic updates to JSON elements for consistency

    Configuration

    Enable the module on your existing services by applying a maintenance update.

    Otherwise, no action is required from you:

    • Enabled by default on all new services.
    • No setup required; start using JSON commands immediately.
    • Always available; cannot be turned off.

    Getting started

    • For existing services: Apply a maintenance update to enable and start using the module.
    • For new services: Start using Valkey JSON commands right away.

    Learn more

  • Dec 15, 2025

    • New
    • Aiven for ClickHouse®

    Aiven for ClickHouse® upgraded to 25.3

    Aiven for ClickHouse® has been upgraded from 24.8 to 25.3. This release contains new features, improvements to existing functionality, and fixes on top of the previous version.

    Highlights

    • S3Queue table engine
    • AzureQueue table engine
    • New query analyzer
    • Improved JOIN performance
    • Data types: JSON, Variant, Dynamic
    • Refreshable materialized view
    • New generateSerialID function

    For all the introduced changes, see relevant sections of the ClickHouse changelog (24.9, 24.10, 24.11, 24.12, 25.1, 25.2, 25.3).

  • Dec 12, 2025

    Aiven for Apache Kafka® upgraded to 4.1

    Aiven for Apache Kafka® has been upgraded to version 4.1.1. This update includes various improvements and bug fixes, enhancing the overall performance, security, and reliability of your clusters.

    For details, see Apache Kafka® 4.1.0 and 4.1.1 release notes:
    - Kafka 4.1.0 release notes
    - Kafka 4.1.1 release notes

  • Dec 12, 2025

    Enforce allowed URLs for SASL OAUTHBEARER authentication

    Aiven for Apache Kafka now enforces an allowed list of URLs for SASL OAUTHBEARER authentication to address CVE-2025-27817.

    By default, the value from sasl_oauthbearer_jwks_endpoint_url is added automatically to the allowed list. You can explicitly allow additional URLs by setting sasl_oauthbearer_allowed_urls.

    URLs that are not included in either sasl_oauthbearer_allowed_urls or sasl_oauthbearer_jwks_endpoint_url are now blocked for SASL OAUTHBEARER authentication.

    Although Apache Kafka Connect and Apache Kafka MirrorMaker 2 do not officially support SASL OAUTHBEARER, this change prevents unsupported configurations from bypassing security controls.

    For more information, see: