Update changelog (#2520)

CHANGELOG.md

@@ -3,6 +3,19 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 
+## [12.9.0] Preview Release
+### Added
+- Added statement portion of configurable retry logic feature [#2396](https://github.com/microsoft/mssql-jdbc/pull/2396)
+- Added JDK 23 support [#2515](https://github.com/microsoft/mssql-jdbc/pull/2515)
+
+### Changed
+- Reverted "Execute Stored Procedures Directly" feature, as well as subsequent changes related to the feature [#2488](https://github.com/microsoft/mssql-jdbc/pull/2488)
+- Changed MSAL logging from FINER to FINEST [#2489](https://github.com/microsoft/mssql-jdbc/pull/2489)
+
+### Fixed issues
+- Changed driver behavior to allow prepared statement objects to be reused, preventing a "multiple queries are not allowed" error [#2482](https://github.com/microsoft/mssql-jdbc/pull/2482)
+- Adjusted DESTINATION_COL_METADATA_LOCK, in SQLServerBulkCopy, so that is properly released in all cases [#2484](https://github.com/microsoft/mssql-jdbc/pull/2484)
+
 ## [12.8.0] Stable Release
 ### Fixed issues
 - Fixed regression with specifying argument names in callable statement syntax [#2480](https://github.com/microsoft/mssql-jdbc/pull/2480)