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Data plane REST API versions (Azure AI Search)

This article lists the current and past versions of the Search REST APIs for Azure AI Search.

Versioned API docs

REST API docs are now versioned. When you open an API reference page, a version selector appears above the table of contents. The selector becomes available when you choose a page from the Reference > Data Plane folder.

Screenshot of the version selector.

Stable versions

API version OpenAPI specification
2025-09-01 (latest) Specification
2024-07-01 Specification
2023-11-01 Specification
2020-06-30 Specification
2019-05-06 Specification

Preview versions

All new features are introduced in preview APIs before transitioning to a stable version. Preview APIs are available under Supplemental Terms of Use for Microsoft Azure Previews.

API version OpenAPI specification
2025-11-01-preview (latest) Specification
2025-08-01-preview Specification
2025-05-01-preview Specification
2025-03-01-preview Specification
2024-11-01-preview Specification
2024-09-01-preview Specification
2024-05-01-preview Specification
2024-03-01-preview Specification
2023-10-01-preview Specification
2023-07-01-preview (deprecated) Specification
2021-04-30-preview Specification
2020-06-30-preview Specification
2019-05-06-preview Specification

Next step

Learn about the features and functionality released in each API version: