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Additions, changes, deprecations, and breaking changes to the public Datagrid REST API and the datagrid-ai SDK, released in July 2026.

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Agents

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SDK · datagrid-ai@0.16.1
  • Changedopenai.gpt-5.5 is now an accepted llm_model value when creating or updating an agent, and when overriding the model on POST /v1/converse. (reference)
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SDK · datagrid-ai@0.16.1
  • ChangedThe default agent_model changed from magpie-2.0 to magpie-2.5 for agent create and update, and for POST /v1/converse. (reference)
    • Migration: Set agent_model explicitly to stay on magpie-2.0.

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Conversations

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SDK · datagrid-ai@0.16.1
  • BreakingMessage content can now be a structured JSON block. MessageContentJson was added to the message content union with a matching json discriminator value, on POST /v1/converse and both message-read endpoints. (reference)
    • Migration: Clients that switch exhaustively on the message content type must handle json. Treat unrecognized content types as a non-fatal default rather than throwing.