Release preparation for version 2.18.1

cpp/ql/src/change-notes/2024-07-08-unsafe-strncat-query.md

@@ -1,4 +0,0 @@
----
-category: queryMetadata
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-* The precision of `cpp/unsafe-strncat` ("Potentially unsafe call to strncat") has been increased to `high`. As a result, it will be run by default as part of the Code Scanning suite.

cpp/ql/src/change-notes/2024-07-11-iterator-to-expired-container-query.md

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----
-category: queryMetadata
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-* The precision of `cpp/iterator-to-expired-container` ("Iterator to expired container") has been increased to `high`. As a result, it will be run by default as part of the Code Scanning suite.

cpp/ql/src/change-notes/2024-07-16-unsigned-difference-expression-compared-zero-.md

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----
-category: minorAnalysis
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-* The `cpp/unsigned-difference-expression-compared-zero` ("Unsigned difference expression compared to zero") query now produces fewer false positives.

cpp/ql/src/change-notes/released/1.1.0.md

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+## 1.1.0
+
+### Query Metadata Changes
+
+* The precision of `cpp/iterator-to-expired-container` ("Iterator to expired container") has been increased to `high`. As a result, it will be run by default as part of the Code Scanning suite.
+* The precision of `cpp/unsafe-strncat` ("Potentially unsafe call to strncat") has been increased to `high`. As a result, it will be run by default as part of the Code Scanning suite.
+
+### Minor Analysis Improvements
+
+* The `cpp/unsigned-difference-expression-compared-zero` ("Unsigned difference expression compared to zero") query now produces fewer false positives.