---
title: Cppcheck Premium 26.1.0 Released — Improved MISRA and CERT Accuracy
description: Cppcheck Premium 26.1.0 improves MISRA C/C++ and CERT C/C++ accuracy, reduces false positives, and enhances compliance reporting.
---

[Cppcheck News](https://www.cppcheck.com/product-news)

# [Cppcheck Premium 26.1.0 Released — Improved MISRA and CERT Accuracy](https://www.cppcheck.com/product-news/cppcheck-premium-26.1.0-released-improved-misra-and-cert-accuracy)

 Written by [Daniel Marjamäki](https://www.cppcheck.com/product-news/author/daniel-marjamäki) | Jan 12, 2026, 10:13:51 PM

Discover the updates in Cppcheck Premium version 26.1.0!

Cppcheck Premium **26.1.0** is now available. This release focuses on improving accuracy and usability across **MISRA C/C++** and **CERT C/C++** compliance checking, with a strong emphasis on reducing false positives and improving rule coverage and reporting.

## What’s New in 26.1.0

### MISRA C Enhancements

#### MISRA C:2025

MISRA C:2025 support continues to mature in this release. The compliance report display for MISRA C:2025 rules has been corrected, ensuring clearer and more reliable reporting when working with the latest version of the standard.

#### Expanded Rule Coverage and Accuracy

Cppcheck Premium 26.1.0 includes a large number of targeted improvements across MISRA C rules, addressing both false positives and false negatives:

- **Identifiers and linkage**: Improved handling of static, extern, and global identifiers, including better detection of name clashes and linkage inconsistencies (Rules 1.5, 5.1, 5.3, 5.7–5.9).
- **Type conversions and expressions**: Enhanced checking for enum conversions, float-to-double conversions, implicit casts, and assignment correctness (Rules 10.1–10.6, 11.1, 11.5).
- **Macros and preprocessing**: Reduced false positives related to `#define` / `#undef` usage and null pointer macros (Rules 2.5, 11.5).
- **Control flow and side effects**: Improved detection of loop counter modification, volatile variable increments, and chained member access (Rules 13.2, 13.3, 14.2).
- **Function usage**: Better handling of function pointers, extern variables, and functions defined in custom configuration files (Rules 8.2, 21.2).
- Improved handling of struct member access patterns.
- Improved essential type resolution for function return values

These refinements improve confidence in MISRA compliance results, particularly for large or legacy codebases.

MISRA C++ 2023 Improvements

MISRA C++ analysis has also been refined in this release:

- **Rule 7.0.3**: Improved distinction between `char` and `int8_t` / `uint8_t` types.
- **Rule 9.4.2**: Improved detection of missing `default` cases in `switch` statements.

These updates reduce unnecessary findings and improve correctness for modern C++ code.

### CERT C/C++ Secure Coding

#### CERT C/C++ Security Enhancements

Cppcheck Premium 26.1.0 strengthens CERT C/C++ coverage with both accuracy improvements and robustness fixes:

- **ARR30-C**: Improved detection of unconditional pointer arithmetic (CVE-2018-14938).
- **CTR50-CPP**: Fixed false positives in iterator and loop index handling.
- **DCL06-C / DCL37-C**: Enhanced constant checking and better handling of custom configuration files.
- **EXP34-C**: Fixed crashes and improved validation of custom library parameters.
- **EXP50-CPP**: Improved detection of unknown evaluation order involving side effects.
- **MEM52-CPP**: More accurate checking for `new` after allocation.

These changes help teams identify real security risks while reducing noise in analysis results.

### Configuration and Reporting Improvements

Several updates in this release improve usability and reporting clarity:

- **Compliance reports** now return successful exit codes where appropriate and provide clearer suppression and coverage information.
- Improved mapping for dangerous type casts in reports.
- Better display of suppression comments.

Together, these changes make compliance results easier to interpret and integrate into automated workflows.

### Summary

Cppcheck Premium 26.1.0 focuses on incremental improvements to compliance checking, including more accurate MISRA C:2025 handling, expanded rule coverage, refinements to CERT checks, and clearer compliance reporting.

[View full post](https://www.cppcheck.com/product-news/cppcheck-premium-26.1.0-released-improved-misra-and-cert-accuracy)

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