C#: Add change-note.

michaelnebel · michaelnebel · commit c3c90dd1b469 · 2022-09-23T14:56:33.000+02:00
diff --git a/csharp/ql/lib/change-notes/2022-09-23-simpletypesanitizer.md b/csharp/ql/lib/change-notes/2022-09-23-simpletypesanitizer.md
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+---
+category: minorAnalysis
+---
+* `DateTime` expressions are now considered simple type sanitizers. This affects a wide range of security queries.

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+Diff line change
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 +---
 +category: minorAnalysis
 +---
 +* `DateTime` expressions are now considered simple type sanitizers. This affects a wide range of security queries.