Which of the following should be kept up-to-date to maintain CodeQL effectiveness?

• A. The Operating System kernel
• B. CodeQL version and packs
• C. The user's local IDE
• D. The repository license

Answer: (B)

Keeping CodeQL up-to-date is essential because the effectiveness of the analysis depends on having the latest queries and data packs. The CodeQL version is the engine itself, with improvements in performance, correctness, and compatibility, while the packs supply language-specific queries and security detectors. Updating both ensures you have the newest detection capabilities, fixes for known issues, and support for newer languages or code constructs. If you fall behind on updates, you may miss newly added detections, encounter outdated results, or fail to analyze newer language features properly. The operating system kernel, your local IDE, or a repository license don't directly improve the accuracy or breadth of the CodeQL checks, though they might affect convenience or environment setup.