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Microsoft Corporation
Patches for Microsoft ODBC Driver 18 for SQL Server x64
Windows
4 patches available
Microsoft ODBC Driver for SQL Server is a single dynamic-link library (DLL) containing run-time support for applications using native-code APIs to connect to SQL Server. Use Microsoft ODBC Driver 18 for SQL Server to create new applications or enhance existing applications that need to take advantage of newer SQL Server features.
Microsoft ODBC Driver 18 for SQL Server x64 Version 18.5.1.1
Release Date
3/16/2025
Bug Fix?
Yes
Minor Release?
Yes
Patch Notes

Feature addedtDetails$$$Packet Size optiontExpose the Packet Size as a connection string option.$$$Include Microsoft SQL Driver Authentication library (mssql-auth.dll) in the installertNow included in the base driver installation; the installer installs and upgrades the Microsoft SQL Driver Authentication library.$$$Added 3 new languagestAdded support for 3 new languages Czech; Polish; and Turkish.$$$Install all featurestModify installer to install both features (Core and SDK) by default.$$$Bug fixes.tBug fixes.
Microsoft ODBC Driver 18 for SQL Server x64 Version 18.4.1.1
Release Date
7/31/2024
Bug Fix?
Yes
Minor Release?
Yes
Patch Notes

New item Details$$$Microsoft Entra IDt- Renamed all occurrences of Azure Active Directory to Microsoft Entra ID. See New name for Azure Active Directory for more information.$$$$$$Bug fixes in the Microsoft ODBC Driver 18.4.1.1 for SQL Server$$$Fix crashes when receiving invalid data from server$$$Fix sending of null data for fixed-length types using DAE$$$Fix 10-minute delay upon disconnection after timeout$$$Fix memory leak upon disconnection when an error occurs$$$Fix memory leak upon reconnection with Strict encryption$$$Fix intermittent crash when connecting with Strict encryption and TLS 1.3$$$Fix crashes under low-memory conditions
Microsoft ODBC Driver 18 for SQL Server x64 Version 18.3.3.1
Release Date
4/9/2024
Bug Fix?
Yes
Minor Release?
No
Patch Notes

Bug fixes in the Microsoft ODBC Driver 18.3.3.1 for SQL Server$$$Fix crashes when receiving invalid data from server$$$Fix infinite loop when receiving invalid data from server$$$Fix App Service Containers MSI Authentication
Microsoft ODBC Driver 18 for SQL Server x64 Version 18.3.2.1
Release Date
10/10/2023
Bug Fix?
Yes
Minor Release?
No
Patch Notes

Bug fixes in the Microsoft ODBC Driver 18.3.2 for SQL Server$$$Fix crashes when receiving invalid data from server$$$Fix infinite loop when receiving invalid data from server$$$Fix a crash when attempting to connect under low-memory conditions
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