Microsoft confirms recent Windows updates cause SQL Server performance and stability issues. An emergency fix is coming.

The problem is that after the October 13 (KB5126646) update, connections created by SQL Server linked server queries might remain open. According to Microsoft, "As additional queries are performed, ...

Microsoft has confirmed that Windows updates released since the October 2026 Patch Tuesday are causing SQL Server performance and stability issues.

Microsoft confirmed that the October 13 KB5126646 update can prevent SQL Server linked server queries from closing ...

The Microsoft Dataverse business layer provides a Tabular Data Stream (TDS) endpoint that emulates a SQL data connection. The SQL connection provides read-only access to the table data of the target ...

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric SQL database in Microsoft Fabric A ...

At Microsoft Build, SQL Server 2025 enters public preview with major enhancements in AI integration, performance, reliability and developer tools -- reaffirming Microsoft’s continued investment in its ...

We’re halfway through 2026, and Microsoft SQL has not slowed down. Since SQLCon/FabCon in March (where we released a ton of things, and those updates can be found in this updates video), we shipped a ...

Woo! I’m posting this live from the first ever European SQLCon (joint conference with FabCon EU), and the second ever SQLCon. The energy here is great, as the community comes together in Barcelona and ...

A new comparison explains operational statistics, query plans and troubleshooting tools for teams considering SQL migration.