Release date: November 26, 2025

Enhanced Code Coverage

MCP Server Extension for LLM Agents

C/C++test now provides an MCP (Model Context Protocol) Server extension that allows you to smoothly integrate your LLM agents or applications (for example, Copilot) with C/C++test functionality. The C/C++test MCP Server can be integrated within any LLM-based development environment that supports MCP Server integration, including VS Code and other environments. With this extension, an LLM agent can interact directly with C/C++test, providing context-aware guidance and analysis.

This feature allows you to use an AI copilot to:

• Provide guidance and instructions for applying coverage suppressions to specific code sections.
• Retrieve detailed, line-by-line coverage information for analyzed code.

For details, see Configuring the MCP Server Extension for AI Agents.

Support for Compilers

The following compilers are now supported:

See Compilers.

Additional Updates

• Java JRE 17-21 is now required.

Deprecated and Removed Support

Compilers to Be Deprecated

Support for the following compilers will be deprecated in future releases:

• ARM Compiler 6.14
• Clang C/C++ Compiler v 12.0 (x86_64)
• Clang C/C++ Compiler v 15.0 (x86_64)
• GNU GCC 8.x (x86, x86_64, arm/aarch32, aarch64/arm64)
• GNU GCC 9.x (x86, x86_64, arm/aarch32, aarch64/arm64)
• Hexagon Clang Compiler v. 8.6.x

Deprecated Compilers

Support for the following compilers is deprecated and will be removed in future releases:

• GNU GCC 7.x
• GNU GCC 7.x (x86_64)
• TI ARM C/C++ Compiler v18.1

• TI ARM C/C++ Compiler GNU GCC 7.x

• Wind River Clang 8.0.x

Removed Support for Compilers

The following compilers are no longer supported:

• ARM Compiler 5.0
• ARM Compiler 6.9
• Clang C/C++ Compiler v 10.0 (x86_64)
• GNU GCC 6.x
• GNU GCC 6.x (x86_64)
• Hexagon Clang Compiler v. 8.4.x
• QNX GCC 5.x
• QNX GCC 5.x (ARM)
• QNX GCC 5.x (ARM64)
• QNX GCC 5.x (x86-64)

Resolved Bugs and FRs