Feature addedtDetails$$$Vector data typet Added support for the float16 vector data type.$$$Connection string keywordstAdded MultipleActiveResultSets; FailoverPartner; WorkstationID; and ConnectTimeout connection string keywords.$$$Enhanced routingt Added load-balanced routing for Azure SQL Database Hyperscale named-replica reader endpoints.$$$Bug fixest Fix reliability of XA distributed transactions during SQL Server connectivity failures.$$$ Fix vector connection attribute handling.$$$ Fix heap corruption in the SQL Server Network Interface (SNI) packet pool.$$$ Fix an out-of-bounds read when parsing malformed LOGINACK tokens.$$$ Fix length validation when parsing malformed ENVCHANGE tokens.$$$ Fix warning generation when connection timeout values are outside the supported range.$$$ Fix memory management when Multiple Active Result Sets (MARS) connections break abruptly.$$$ Fix redundant logging during Azure Key Vault token acquisition for Always Encrypted.$$$ Fix handling of OpenSSL errors left on the calling threads error queue.$$$ Fix asynchronous timeout handling for partially length-prefixed data with zero-length chunks.$$$ Fix byte count reporting for overlapped named pipe writes in Tabular Data Stream (TDS) packet tracing.$$$ Fix asynchronous timeout handling for DATACLASSIFICATION tokens.$$$ Fix heap corruption on Linux ARM64 and macOS ARM64.$$$ Fix the contact email address in Linux packages.

Feature addedtDetails$$$Vector parameters.tImprove handling of output and input/output vector parameters when using prepared statements.$$$Server redirections.tSupport Microsoft Fabric redirection scenarios allowing up to 10 server redirections per connection attempt.$$$Bug fixes.tBug fixes - https://learn.microsoft.com/en-us/sql/connect/odbc/bug-fixes?view=sql-server-ver15$$$$$$$$$Bug fixes in the Microsoft ODBC Driver 18.6.2.1 for SQL Server$$$Fix SQL_ATTR_PARAMS_PROCESSED_PTR updates so the number of processed parameter sets is reported correctly when executing parameter arrays.$$$Fix SQL_ATTR_PARAMS_PROCESSED_PTR and row counting when SQL_PARAM_IGNORE is used in parameter arrays.$$$Fix segmentation fault when calling SQLNumResultCol in describe-only scenarios where no parameter bindings are present.$$$Fix bcp_bind to correctly handle consecutive field terminators without misinterpreting them as empty fields.$$$Fix RPM packaging rules to allow installing multiple driver versions side by side.$$$Fix XA (X/Open distributed transaction) recovery to compute transaction identifiers correctly and avoid missing recoverable transactions.$$$Fix segmentation fault on handling of NULL values in table-valued parameter (TVP) arguments.

Feature addedtDetails$$$Vector parameters.tImprove handling of output and input/output vector parameters when using prepared statements.$$$Server redirections.tSupport Microsoft Fabric redirection scenarios allowing up to 10 server redirections per connection attempt.$$$Bug fixes.tBug fixes - https://learn.microsoft.com/en-us/sql/connect/odbc/bug-fixes?view=sql-server-ver15$$$$$$$$$Bug fixes in the Microsoft ODBC Driver 18.6.2.1 for SQL Server$$$Fix SQL_ATTR_PARAMS_PROCESSED_PTR updates so the number of processed parameter sets is reported correctly when executing parameter arrays.$$$Fix SQL_ATTR_PARAMS_PROCESSED_PTR and row counting when SQL_PARAM_IGNORE is used in parameter arrays.$$$Fix segmentation fault when calling SQLNumResultCol in describe-only scenarios where no parameter bindings are present.$$$Fix bcp_bind to correctly handle consecutive field terminators without misinterpreting them as empty fields.$$$Fix RPM packaging rules to allow installing multiple driver versions side by side.$$$Fix XA (X/Open distributed transaction) recovery to compute transaction identifiers correctly and avoid missing recoverable transactions.$$$Fix segmentation fault on handling of NULL values in table-valued parameter (TVP) arguments.

Feature addedtDetails$$$New data typetAdded support for new Vector data type (float32).$$$ConcatNullYieldsNull propertytAdded support for ConcatNullYieldsNull property as both a connection string property and a registry key option.$$$New distribution supportedtAdded x86 support on Windows ARM64.

Feature addedtDetails$$$New data typetAdded support for new Vector data type (float32).$$$ConcatNullYieldsNull propertytAdded support for ConcatNullYieldsNull property as both a connection string property and a registry key option.$$$New distribution supportedtAdded x86 support on Windows ARM64.

Feature addedtDetails$$$Fixed potential crashestAvoid potential crashes caused by memory corruption.

Feature addedtDetails$$$Fixed potential crashestAvoid potential crashes caused by memory corruption.

Feature addedtDetails$$$Fixed potential crashestAvoid potential crashes caused by memory corruption.

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.

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.

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.

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.

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

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

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

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

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

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

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

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