codeql/cpp/ql/src/change-notes/released/1.2.0.md

1.2.0

Query Metadata Changes

• The precision of cpp/unsigned-difference-expression-compared-zero ("Unsigned difference expression compared to zero") has been increased to high. As a result, it will be run by default as part of the Code Scanning suite.

Minor Analysis Improvements

• Fixed false positives in the cpp/memory-may-not-be-freed ("Memory may not be freed") query involving class methods that returned an allocated field of that class being misidentified as allocators.
• The cpp/incorrectly-checked-scanf ("Incorrect return-value check for a 'scanf'-like function") query now produces fewer false positive results.
• The cpp/incorrect-allocation-error-handling ("Incorrect allocation-error handling") query no longer produces occasional false positive results inside template instantiations.
• The cpp/suspicious-allocation-size ("Not enough memory allocated for array of pointer type") query no longer produces false positives on "variable size" structs.