--- title: "Cppcheck Open-Source 2.18 Released: New Path Syntax, Clang Analyzer support and More" description: Cppcheck 2.18 updates path matching, deprecates Qt 5 and old platforms, adds Clang Analyzer support, and requires Python 3.7. image: https://www.cppcheck.com/hubfs/Software%20Update%20Open%20Source.png --- [![a (1252)-2](https://www.cppcheck.com/hubfs/a%20(1252)-2.jpeg)](https://www.cppcheck.com) - [Pricing](https://www.cppcheck.com/plans-pricing) - [News](https://www.cppcheck.com/product-news) - [Code Quality](https://www.cppcheck.com/code-quality) - [Safety Compliance](https://www.cppcheck.com/product-news/safety) - [Security Compliance](https://www.cppcheck.com/product-news/security) - [About](https://www.cppcheck.com/about) - [About us](https://www.cppcheck.com/about) - [Our partners](https://www.cppcheck.com/our-fantastic-partners) [Star us on GitHub](https://github.com/danmar/cppcheck) Software update # Cppcheck Open-Source 2.18 Released: New Path Syntax, Clang Analyzer support and More Cppcheck 2.18 updates path matching, deprecates Qt 5 and old platforms, adds Clang Analyzer support, and requires Python 3.7. [Daniel Marjamäki](https://www.cppcheck.com/product-news/author/daniel-marjamäki) Aug 6, 2025 [Software update](https://www.cppcheck.com/product-news/tag/software-update) [Cppcheck open-source](https://www.cppcheck.com/product-news/tag/cppcheck-open-source) ![](https://www.cppcheck.com/hubfs/Software%20Update%20Open%20Source.png) ## Explore the new features in Cppcheck version 2.18! The latest release of Cppcheck, version 2.18, is now available. This update introduces important interface changes, cleanup of legacy platform options, and a number of behind-the-scenes improvements. If you're using suppressions, custom project files, or integrating with CMake or Clang tools, this release includes updates you’ll want to review. ### **Here are the full release notes for Cppcheck 2.18:** #### Changed interface: - Updated path matching syntax for -i, --file-filter, suppressions, GUI excludes, and project file excludes. Old patterns that use a `*` may need to use `**` instead if it is intended to match path separators. More details can be seen in the manual. #### Deprecations: - Support for building with Qt 5 will be removed in Cppcheck 2.19. - The platform 'unix32-unsigned' has been deprecated and will be removed in Cppcheck 2.19. Please use '--platform=unix32 --funsigned-char' instead. - The platform 'unix64-unsigned' has been deprecated and will be removed in Cppcheck 2.19. Please use '--platform=unix64 --funsigned-char' instead. #### Other: - Updated Qt to 6.9.1 (official Windows release only). - added CMake target `run-clang-tidy-csa` to run Clang Static Analyzer - added CMake option `ENABLE_CSA_ALPHA` to enable the Clang Static Analyzer alpha checkers - Updated TinyXML-2 to v11.0.0 - The minimum supported Python version has been bumped to 3.7. - CMake will now unconditionally use Boost.Containers if available. If CMake option `USE_BOOST` is specified it will now bail out when it is not found. - Fix checking a project that contains several project file entries for the same file. - Fixed --file-filter matching of looked up files in provided paths. - Split up cstyleCast checker; dangerous casts produce portability/warning reports, safe casts produce style reports. - Removed deprecated '--showtime=' value 'top5'. Please use 'top5\_file' or 'top5\_summary' instead. [Read more on GitHub.](https://github.com/danmar/cppcheck/releases/tag/2.18.0) ## Similar posts Software update ### [Cppcheck Open-Source 2.21 Released: Stability improvements and new checks](https://www.cppcheck.com/product-news/cppcheck-open-source-2.21-released) Cppcheck 2.21 focuses on stability improvements, new analysis checks, updates to the GUI, project handling, and configuration options. Daniel Marjamäki Jun 11, 2026 Software update ### [Cppcheck Premium 26.3.0 Released — New CERT Checks and Improved MISRA Accuracy](https://www.cppcheck.com/product-news/cppcheck-premium-26.3.0) Cppcheck Premium 26.3.0 introduces a new CERT rule check, improves MISRA C and MISRA C++ accuracy, and enhances reporting, metrics, and analysis... Daniel Marjamäki Mar 10, 2026 Software update ### [Cppcheck Premium 25.3.0 released](https://www.cppcheck.com/product-news/cppcheck-premium-25-3-0) Cppcheck Premium 25.3.0 builds on Cppcheck 2.17, offering enhanced support for Zephyr project analysis and various compliance report updates. 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