Swift: Add change note.

geoffw0 · geoffw0 · commit 76e51eeaa2e7 · 2023-06-19T17:14:14.000+01:00
diff --git a/swift/ql/lib/change-notes/2023-06-19-regex-library.md b/swift/ql/lib/change-notes/2023-06-19-regex-library.md
@@ -0,0 +1,6 @@
+---
+category: feature
+---
+
+* Added new libraries `Regex.qll` and `RegexTreeView.qll` for reasoning about regular expressions
+in Swift code and places where they are evaluated.
