Update changelog for 2.14.3

Author: Dave Bartolomeo

CHANGELOG.md

@@ -17,6 +17,35 @@
      you know what to do).
 -->
 
+## Release 2.14.3 (2023-08-25)
+
+### Breaking changes
+
+- The `<run>.tool.extensions` property in the SARIF generated by `codeql database analyze` now contains the
+  following packs:
+
+  - The containing query pack for each query that was evaluated.
+  - Each model pack that was specified via the `--model-packs` option, regardless of whether
+    that model pack affected any of the evaluated queries.
+
+  Library packs are no longer included in the list.
+
+  Previously, this property contained every query and library pack that was available on the search
+  path, regardless of whether that pack was used during the evaluation.
+
+### Miscellaneous
+
+- The build of Eclipse Temurin OpenJDK that is bundled with the CodeQL
+  CLI has been updated to version 17.0.8.
+
+- When `codeql test` generates `.actual` files, they will in some cases
+  list the query predicates in a different order than past versions.
+  There is no need to update `.expected` files, as `codeql test` sorts
+  their results accordingly before diffing.
+  However, when there are genuine changes in expected results, the
+  generated `.actual` file can show additional changes against the
+  `.expected` due to the reordering.
+
 ## Release 2.14.2 (2023-08-11)
 
 ### Breaking changes