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2 | 2 | All notable changes to this project will be documented in this file. |
3 | 3 |
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4 | 4 | The format is based on [Keep a Changelog](http://keepachangelog.com/) |
5 | | -## [13.3.0] Preview Release |
6 | | - |
7 | | -### Added |
8 | | - |
9 | | -- **Performance logger and callback handling mechanism** [#2706](https://github.com/microsoft/mssql-jdbc/pull/2706) |
10 | | - **What was added**: Introduced performance logging framework to track critical driver operations such as connection time, prelogin, login, and token acquisition. |
11 | | - **Who benefits**: Developers and operators monitoring JDBC driver performance. |
12 | | - **Impact**: Enables visibility into driver-level latencies via com.microsoft.sqlserver.jdbc.PerformanceMetrics.Connection logger and extensible callback infrastructure for future metrics. |
13 | | - |
14 | | -- **Test enhancements** [#2712](https://github.com/microsoft/mssql-jdbc/pull/2712) |
15 | | - **What changed**: Improved unit test coverage for SQLServerConnectionTest, SQLServerDatabaseMetaData and few more classes. |
16 | | - **Who benefits**: Contributors and maintainers. |
17 | | - **Impact**: Improves code coverage with junit tests. |
18 | | - |
19 | | -### Changed |
20 | | - |
21 | | -- **Java 25 (LTS) support and removal of non-LTS versions 22–24** [#2821](https://github.com/microsoft/mssql-jdbc/pull/2821) |
22 | | - **What changed**: Added official support for Java 25 (LTS) and removed non-LTS Java versions (22–24) from Maven and Gradle build configurations. |
23 | | - **Who benefits**: Developers aligning builds with long-term supported Java versions. |
24 | | - **Impact**: Ensures continued compatibility and stability with LTS Java releases; simplifies build maintenance. |
25 | | - |
26 | | -### Fixed |
27 | | - |
28 | | -- **Bulk insert parsing of isolated quotes in tab-delimited data** [#2795](https://github.com/microsoft/mssql-jdbc/pull/2795) |
29 | | - **What was fixed**: Resolved IndexOutOfBoundsException caused by incorrect quote state handling during tab-delimited bulk copy operations. |
30 | | - **Who benefits**: Users performing bulk inserts from tab-delimited data containing isolated quotes. |
31 | | - **Impact**: Ensures isolated quotes are treated as literal characters; improves parsing reliability and consistency. |
32 | | - |
33 | | -- **PreparedStatement INSERT update Count with triggers and multi-Value inserts** [#2817](https://github.com/microsoft/mssql-jdbc/pull/2817) |
34 | | - **What was fixed**: Corrected inaccurate update counts returned by PreparedStatement for multi-value INSERT statements with triggers. |
35 | | - **Who benefits**: Developers relying on accurate update counts in batch or trigger-based inserts. |
36 | | - **Impact**: Ensures consistent and accurate update count behavior across all INSERT execution scenarios. |
37 | | - |
38 | | -- **Fix for fatal error handling in DONE tokens** [#2741](https://github.com/microsoft/mssql-jdbc/pull/2741) |
39 | | - **What was fixed**: Corrected TDS message handling to properly detect and propagate fatal severity (25+) errors. |
40 | | - **Who benefits**: Applications needing reliable error propagation during critical SQL Server failures. |
41 | | - **Impact**: Prevents silent failures and ensures robust TDS stream recovery during fatal error conditions. |
42 | | - |
43 | | -- **Fix for getParameterMetaData() crash with table-valued parameters** [#2746](https://github.com/microsoft/mssql-jdbc/pull/2746) |
44 | | - **What was fixed**: Prevented SQLServerException when calling getParameterMetaData() on statements using Table-Valued Parameters (TVPs). |
45 | | - **Who benefits**: Developers using structured or table-valued parameters. |
46 | | - **Impact**: Restores correct metadata extraction for TVP parameters, ensuring full JDBC metadata compatibility. |
47 | | - |
48 | | -- **supportsIntegrityEnhancementFacility() returns accurate value** [#2828](https://github.com/microsoft/mssql-jdbc/pull/2828) |
49 | | - **What was fixed**: Corrected DatabaseMetaData.supportsIntegrityEnhancementFacility() to return true for SQL Server. |
50 | | - **Who benefits**: Applications querying database metadata for integrity constraint support. |
51 | | - **Impact**: Accurately reports SQL Server’s full support for primary, foreign key, and check constraints. |
52 | | - |
53 | | -- **Fix bulk copy for batch insert to support InputStream data** (#2826)(https://github.com/microsoft/mssql-jdbc/pull/2826) |
54 | | - **What was fixed**: Enabled setBinaryStream() to work correctly with Bulk Copy for Batch Insert into VARBINARY(MAX) columns. |
55 | | - **Who benefits**: Developers inserting large binary data via streams. |
56 | | - **Impact**: Prevents “invalid hex format” errors; ensures InputStream-based binary inserts work seamlessly. |
57 | | - |
58 | | -- **Addressed failure on Azure Synapse serverless SQL pool caused by the unsupported sp_statistics procedure** [#2839](https://github.com/microsoft/mssql-jdbc/pull/2839) |
59 | | - **What changed**: Added a try–catch fallback in getIndexInfoAzureDW() to query sys.indexes, sys.index_columns, sys.columns, and sys.tables when sp_statistics is unavailable. |
60 | | - **Who benefits**: Applications retrieving index metadata from Azure Synapse serverless SQL pool or other environments lacking sp_statistics. |
61 | | - **Impact**: Ensures reliable metadata retrieval through a sys.indexes fallback, consistent NON_UNIQUE mapping, and aligned behavior with Azure SQL Database. |
62 | | - |
63 | | -- **Test cleanup** [#2734](https://github.com/microsoft/mssql-jdbc/pull/2734) |
64 | | - **What changed**: Updated tests to clean up temporary objects post-execution. |
65 | | - **Who benefits**: Contributors and maintainers. |
66 | | - **Impact**: Reduces test flakiness and improves maintainability of the test suite. |
67 | | - |
68 | | - |
69 | 5 | ## [13.2.0] Stable Release |
70 | 6 |
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71 | 7 | ### Changed |
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