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SERVICE UPDATEAMAZON WEB SERVICESVERIFIED

PUBLISHER UPDATE · AMAZON-WEB-SERVICES-D11052EC1C1ED9D3

AMAZON-WEB-SERVICES-D11052EC1C1ED9D3 release notes and known issues

Amazon Kinesis Data Streams announces Service-Managed Partition Keys for simplified data ingestion

Scope: AWS services. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.

Summary

Amazon Kinesis Data Streams now supports service-managed partition keys for On-Demand Standard and On-Demand Advantage streams, automatically distributing records across shards without requiring customers to specify partition keys to publish data. This capability simplifies data ingestion for workloads where record ordering is not required, eliminating hot partition keys and reducing time to production for streaming workloads. Amazon Kinesis Data Streams is a serverless streaming data service that makes it easy to capture, process, and store data streams at any scale. Many streaming use cases such as log aggregation, metrics collection, and IoT telemetry do not require ordering guarantees and benefit from prewarmed capacity for instant scaling. Previously, customers generated random partition keys (such as UUIDs) to distribute data, but random partitioning can still produce uneven throughput across shards, causing throttling for some partition keys even when the stream has sufficient aggregate capacity. By opting into service-managed partition keys, customers no longer need to specify partition keys when publishing data to streams in on-demand mode. The service automatically distributes records based on available warm capacity, allowing customers to scale to gigabytes per second without maintaining any distribution logic. Customers who want to send records without specifying a partition key can simply upgrade to the latest AWS SDK or Kinesis Producer Library (KPL) version to benefit from this capability. Service-managed partition keys for Amazon Kinesis Data Streams is available today in all AWS commercial regions at no additional cost. To get started, visit the Amazon Kinesis Data Streams documentation ( https://aws.amazon.com/kinesis ).

Improvements and security content

  • Amazon Kinesis Data Streams now supports service-managed partition keys for On-Demand Standard and On-Demand Advantage streams, automatically distributing records across shards without requiring customers to specify partition keys to publish data. This capability simplifies data ingestion for workloads where record ordering is not required, eliminating hot partition keys and reducing time to production for streaming workloads. Amazon Kinesis Data Streams is a serverless streaming data service that makes it easy to capture, process, and store data streams at any scale. Many streaming use cases such as log aggregation, metrics collection, and IoT telemetry do not require ordering guarantees and benefit from prewarmed capacity for instant scaling. Previously, customers generated random partition keys (such as UUIDs) to distribute data, but random partitioning can still produce uneven throughput across shards, causing throttling for some partition keys even when the stream has sufficient aggregate capacity. By opting into service-managed partition keys, customers no longer need to specify partition keys when publishing data to streams in on-demand mode. The service automatically distributes records based on available warm capacity, allowing customers to scale to gigabytes per second without maintaining any distribution logic. Customers who want to send records without specifying a partition key can simply upgrade to the latest AWS SDK or Kinesis Producer Library (KPL) version to benefit from this capability. Service-managed partition keys for Amazon Kinesis Data Streams is available today in all AWS commercial regions at no additional cost. To get started, visit the Amazon Kinesis Data Streams documentation ( https://aws.amazon.com/kinesis ).

Known issues

Publisher statement

Not stated. The verified publisher record does not contain a known-issues statement.

Affected products and versions

Products

  • AWS services

Affected versions

  • See the official publisher source for applicability.

Fixed versions or updates

  • No fixed version is stated in this record.

Recommended action

Review the official publisher document before deployment.

Official publisher evidence

AMAZON WEB SERVICESVERIFIED

Amazon Kinesis Data Streams announces Service-Managed Partition Keys for simplified data ingestion

Checked 30 Sep 2026. BlackTree preserves the last verified facts if a later source check is temporarily unavailable.

Open the official publisher source