| title | SQL Server 2025 Release Notes | |
|---|---|---|
| description | Find information about SQL Server 2025 (17.x) limitations, known issues, help resources, and other release notes. | |
| author | MikeRayMSFT | |
| ms.author | mikeray | |
| ms.reviewer | randolphwest | |
| ms.date | 09/02/2025 | |
| ms.service | sql | |
| ms.subservice | release-landing | |
| ms.topic | release-notes | |
| ms.custom |
|
|
| monikerRange | >=sql-server-2016 |
[!INCLUDE sqlserver2025]
This article describes requirements, and limitations for [!INCLUDE sssql25-md].
This article is updated for release candidate (RC) 0.
Explore preview development features with a new PREVIEW_FEATURES database scoped configuration. Enable PREVIEW_FEATURES to test some features, such as vector indexes. This configuration lets you try select features in preview even after SQL Server reaches general availability. These features will become generally available in future cumulative updates. When a cumulative update provides general availability for a feature, the database-scoped configuration is no longer be necessary for that feature.
To use these features, enable the PREVIEW_FEATURES database scoped configuration.
[!INCLUDE preview-features]
All other features described in the What's new in SQL Server 2025 Preview article are aligned with the release of SQL Server. They don't require enabling the preview feature database scoped configuration.
For more information, review Opt in for preview features - FAQ.
The Optimized Halloween protection feature is not currently available in [!INCLUDE sssql25-md] starting with RC 0. For more information, see the SQL Server 2025: introducing optimized Halloween protection blog.
[!INCLUDE sssql25-md] introduces breaking changes to a few SQL Server Database Engine features. To learn more, review Breaking changes in SQL Server 2025 preview.
| Build | Version number | Date |
|---|---|---|
| Preview (RC 0) | 17.0.900.7 | August 20, 2025 |
| Preview (CTP 2.1) | 17.0.800.3 | June 16, 2025 |
| Preview (CTP 2.0) | 17.0.700.9 | May 19, 2025 |