Product updates

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  • Aug 7, 2026

      Improved
      Aiven for Apache Kafka®

    Karapace upgraded to version 6.2.2

    Karapace 6.2.2 expands Schema Registry compatibility and improves reliability and performance.

    New

    • Schema Registry now supports JSON Schema drafts 2019-09 and 2020-12 for validation, storage, and compatibility checks. The unevaluatedProperties, $dynamicRef, $recursiveRef, and $vocabulary keywords are not yet supported.

    Fixed

    • Schema Registry could remain unavailable when the _schemas topic was replicated with Apache Kafka® MirrorMaker 2 and ended with a transaction control record.
    • Avro records with multi-way unions are now decoded up to 6 times faster, reducing REST proxy timeouts.

    For details, see the Karapace 6.2.2 release notes.

  • Aug 3, 2026

      Improved
      Aiven for Apache Kafka®

    Karapace upgraded to version 6.2.1

    Karapace 6.2.1 improves performance, security, and reliability for your clusters.

    If you use Protobuf schemas with map<K,V> fields in Schema Registry, this release fixes an issue where binary serialization and deserialization didn't preserve the underlying map_entry representation.

    This release also updates the protobuf and confluent-kafka-py dependencies for Schema Registry and Kafka REST proxy.

    For details, see the Karapace 6.2.1 release notes.

  • Jul 31, 2026

      Improved
      Aiven for OpenSearch®

    Aiven for OpenSearch® Hobbyist plan retirement

    Aiven is retiring the Hobbyist plan for Aiven for OpenSearch®. From July 31, 2026, new customers cannot create Hobbyist services. Projects already running a Hobbyist service keep full access: existing services continue to run, and you can still create new Hobbyist services in those projects until further notice.

    We are making this change to improve the overall product experience. The current technical specifications of the Hobbyist plan don't provide the performance modern applications require, often leading to a sub-optimal experience.

    If you are starting a new Aiven for OpenSearch service, use the Developer tier. It gives you 4 GB RAM and 30 GB storage at $40/month for an always-on single node with daily backups. To change the plan for an existing Hobbyist service, upgrade the plan in the Aiven Console. See the Developer tier page for full specifications.

  • Jul 31, 2026

      Improved
      Aiven for PostgreSQL®

    Aiven for PostgreSQL®: Version 18 is now the default for new services

    We are excited to announce that PostgreSQL 18 is now the default version for all new Aiven for PostgreSQL® services.

    What this means for you:

    • New services: When creating a new Aiven for PostgreSQL service, the platform will now automatically select version 18 as the default.
    • Existing services: Your currently running services on versions other than 18 remain unaffected and will continue to operate normally.

    See our documentation for the Aiven for PostgreSQL service version lifecycle.

  • Jul 30, 2026

      New
      Aiven Terraform provider

    Aiven Provider for Terraform version 4.61.0 now available

    This release adds support for new service configuration and integration options, while improving day-to-day Terraform stability.


    Highlights for this release:

    • Organization user groups are easier to manage. Group name and description can now be updated in place instead of forcing resource recreation.
    • PostgreSQL database reads are more reliable for services with larger database lists through pagination fixes.
    • OpenTelemetry integration is supported through new integration and endpoint types, including OpenTelemetry endpoint user configuration.
    • MySQL configuration coverage was expanded with many new optimizer and FULLTEXT settings.

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

  • Jul 29, 2026

      New
      Aiven for ClickHouse®

    Aiven for ClickHouse® 26.3 available in Early Availability

    Aiven for ClickHouse 26.3 LTS is available in Early Availability. You can use it for new services or upgrade an existing service from version 25.8.
    This release enables asynchronous inserts by default, makes full-text search generally available, introduces materialized common table expressions (CTEs), improves Map lookup performance, and includes upstream changes from versions 25.9 through 26.3.

    Before upgrading, Aiven checks the service for compatibility issues. Review the compatibility changes, removed features, and changed defaults, and test the upgrade on a service fork first.

    For details, see Upgrade to Aiven for ClickHouse 26.3 and the announcement blog.

  • Jul 29, 2026

      New
      Aiven MCP

    Connect AI assistants to Aiven with Aiven MCP

    Aiven MCP is now generally available. It connects supported AI assistants to the Aiven platform so you can explore and manage your Aiven projects and services using natural language.


    With Aiven MCP, you can:

    • View projects, services, integrations, plans, cloud regions, and service status.
    • Create and manage supported Aiven services.
    • Review service metrics, logs, and configuration.
    • Find information from the Aiven documentation.
    • Restrict access with read-only mode or specific service tools.

    Aiven MCP supports MCP-compatible clients, including Claude Desktop, Claude Code, Cursor, Visual Studio Code, and Gemini CLI.

    To get started, see the Aiven MCP documentation.

  • Jul 22, 2026

      New
      Aiven for OpenSearch®

    Hot/warm data tiering for Aiven for OpenSearch®

    Aiven for OpenSearch® now supports hot/warm data tiering on custom plans. This feature is in limited availability; contact Aiven to request access.

    Clusters with tiered storage run two groups of data nodes: hot nodes on fast storage for active data, and warm nodes on larger, lower-cost storage for older data that is queried less often. Index State Management (ISM) policies automate the full lifecycle: new indexes land on hot nodes, roll over when they reach a size or age threshold, migrate to warm nodes after a retention period, and are optionally deleted.

    Key details:

    • Requires Aiven for OpenSearch® 2.19 or later.
    • Configure index routing and ISM policies directly through the OpenSearch API or OpenSearch Dashboards.

    For setup instructions and ISM policy examples, see Hot/warm data tiering in Aiven for OpenSearch®.

  • Jul 17, 2026

      New
      Aiven for Valkey™

    Aiven for Valkey™ 9.1 is here

    We’ve added support for Valkey 9.1, a release focused on new features and improvements for security, observability, performance, efficiency, and tooling.

    Key highlights

    • Security: database-level ACLs, Lua moved to a module, TLS improvements
    • Observability: main/IO thread usage metrics, JSON logging
    • Performance: new IO threading model, faster streams/sorted sets/GETs
    • Efficiency: reduced memory for strings and sorted sets, faster rehashing
    • New commands: HGETDEL, MSETEX, CLUSTERSCAN

    Default version

    Valkey 9.1 is now the default version for all new Aiven for Valkey services. Your currently running services on version 8.1 remain unaffected and will continue to operate normally.