Add change note

Author: asgerf

extensions/ql-vscode/CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [UNRELEASED]
 
 - Remove support for CodeQL CLI versions older than 2.22.4. [#4344](https://github.com/github/vscode-codeql/pull/4344)
+- Added support for selection-based result filtering via a checkbox in the result viewer. When enabled, only results from the currently-viewed file are shown. Additionally, if the editor selection is non-empty, only results within the selection range are shown. [#4362](https://github.com/github/vscode-codeql/pull/4362)
 
 ## 1.17.7 - 5 December 2025