Update changelog

Author: dklilley

CHANGELOG.md

@@ -7,10 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [1.3.9] - 2026-02-19
+## [1.3.9] - 2026-03-06
 
 ### Fixed
 - Resolves an issue starting MATLAB when the `HOME` environment variable is set to an invalid folder (Addresses [mathworks/MATLAB-extension-for-vscode#164](https://github.com/mathworks/MATLAB-extension-for-vscode/issues/164))
+- Applied patches for CVE-2025-13465, CVE-2025-68157, CVE-2025-68458, CVE-2026-2391, CVE-2026-27606, CVE-2026-27903
 
 ## [1.3.8] - 2026-01-09