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Amazon Bedrock

Updated 4:17 AM ET
Product · 4 updates

Where it stands

As of Oct 20, Amazon Bedrock's documentation history says Advanced Prompt Optimization can now shorten prompts, enabled per prompt template, to reduce prompt length while maintaining or improving evaluation scores.

Timeline · newest first
  1. Official

    Amazon Bedrock Advanced Prompt Optimization adds prompt shortening and accepts application inference profiles

    Amazon (AWS) published this on Oct 20, 2026 (source: docs.aws.amazon.com).

    Amazon Bedrock's documentation history says Advanced Prompt Optimization can now shorten prompts, enabled per prompt template, to reduce prompt length while maintaining or improving evaluation scores. Application inference profiles are now accepted as target and judge models, and results include median time to first token and average and median latency.

    Source: Amazon (AWS)
  2. Official

    Amazon Bedrock adds retrieval instructions to agentic retrieval on managed knowledge bases

    Amazon (AWS) published this on Oct 20, 2026 (source: docs.aws.amazon.com).

    AWS says agentic retrieval on fully managed Amazon Bedrock knowledge bases now supports retrieval instructions, which steer how the agent searches knowledge bases and how it answers. Bedrock reviews each instruction before it takes effect, versions can be pinned as immutable, and instructions are applied through the retrievalInstructionConfiguration field on AgenticRetrieveStream, per its Bedrock documentation history (October 19, 2026).

    Source: Amazon (AWS)
  3. Official

    Amazon Bedrock adds structured outputs for all Anthropic Claude models

    AWS published this on Oct 19, 2026 (source: aws.amazon.com).

    Amazon Bedrock now supports structured outputs for all Anthropic Claude models on both the bedrock-runtime and bedrock-mantle endpoints, where the model is available. Two mechanisms work on both endpoints: a JSON Schema output format that controls the shape of the response, and strict tool use that validates tool parameters against schemas. AWS says structured outputs use constrained decoding to enforce the schema during generation, so every response is valid JSON with required fields present.

    Source: AWS
  4. Official

    Amazon Bedrock Guardrails contextual grounding checks now support the Standard tier

    Amazon Bedrock documentation history published this on Oct 19, 2026 (source: docs.aws.amazon.com).

    Amazon Bedrock Guardrails contextual grounding checks now support the Standard safeguard tier, per the Bedrock documentation history entry dated October 19, 2026. AWS says the Standard tier supports responses that include reasoning or conversational content, returns more consistent scores and supports additional languages.

    Source: Amazon Bedrock documentation history
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