Microsoft SQL Server SQL Server 2025 Update Version 17.0.4025.3

KB5077896 delivers Cumulative Update 3 for Microsoft SQL Server 2025, including 15 fixes since CU2. It also adds new bulk admin permissions support, a configurable full-text search batch timeout, and addresses a known SESSION_CONTEXT issue in parallel plans.

• Adds support for the Bulkadmin role and ADMINISTER BULK OPERATIONS permissions to enable secure bulk data import without requiring sysadmin access (Public Preview).
• Adds a configuration option to add Bulkadmin operations to the allowlist.

• Improves performance scalability on large core-count server configurations, including reduced false sharing and cache line invalidation in column store and backup/restore paths.
• Fixes SqlLocalDB crashes and failures related to VECTOR and REGEX functions on Windows.
• Fixes assertion and dump file issues when optimized locking and change tracking are both enabled.
• Fixes high availability issues involving Contained Availability Groups, log shipping, and local monitor server behavior after failover.
• Fixes Linux-specific issues including incorrect model and msdb log file locations after edition changes, a typo in sys.dm_os_linux_disk_stats, and a crash when requesting control-register-only context.
• Adds support for symbolic links in the getattribute API.

• Adds configurable full-text search batch timeout via sp_fulltext_service 'batch_timeout', with values from 1 minute to 1 hour in milliseconds.
• Adds support for the Bulkadmin role and ADMINISTER BULK OPERATIONS permissions (Public Preview).
• Adds support for symbolic links in the getattribute API.

• Queries that use SESSION_CONTEXT in parallel plans might return incorrect results or trigger AV dump files, especially when the session is reset for reuse.

• Applies to SQL Server 2025 on Windows and Linux.
• Updates SQL Server to version 17.0.4025.3 and Analysis Services to 17.0.25.223.
• The update package contains 15 fixes issued after SQL Server 2025 CU2.
• A downloadable Excel workbook is available with build summaries and detailed fix lists for multiple SQL Server versions.

Product Information

Vendor: Microsoft

Product: SQL Server

Product type: Software

Variant: SQL Server 2025

Version: 17.0.4025.3

Vendor information published: Mar 12, 2026

Original release notes: View on vendor site

Published on updatealert.io: Sep 29, 2026