C#: Add change note.

michaelnebel · michaelnebel · commit 758a6b5487e4 · 2025-06-17T10:00:09.000+02:00
diff --git a/csharp/ql/src/change-notes/2025-06-16-tagging.md b/csharp/ql/src/change-notes/2025-06-16-tagging.md
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+---
+category: queryMetadata
+---
+* Query metadata tags have been systematically updated for many C# queries. Primary categorization as either `reliability` or `maintainability`, and relevant sub-category tags such as `readability`, `useless-code`, `complexity`, `performance`, `correctness`, `error-handling`, and `concurrency`. Aligns with the established [Query file metadata and alert message style guide](https://github.com/github/codeql/blob/main/docs/query-metadata-style-guide.md#quality-query-sub-category-tags).

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 +---
 +category: queryMetadata
 +---
 +* Query metadata tags have been systematically updated for many C# queries. Primary categorization as either `reliability` or `maintainability`, and relevant sub-category tags such as `readability`, `useless-code`, `complexity`, `performance`, `correctness`, `error-handling`, and `concurrency`. Aligns with the established [Query file metadata and alert message style guide](https://github.com/github/codeql/blob/main/docs/query-metadata-style-guide.md#quality-query-sub-category-tags).