GitHub Copilot CLI now offers faster C++ code intelligence with whole codebase indexing
GitHub Copilot CLI has enhanced its C++ code intelligence by introducing whole codebase indexing, significantly speeding up operations like finding definitions and references. This feature creates a persistent index of symbols across an entire C++ project, including unopened files, leveraging the Microsoft C++ Language Server. Developers will experience reduced waiting times when navigating large and complex C++ repositories. Whole codebase indexing is enabled by default and dynamically updates after an initial build.
Features (1) ›
- Whole Codebase Indexing for Faster C++ Code Intelligence
GitHub Copilot CLI now supports whole codebase indexing for C++ projects, which creates a persistent index of symbols across the entire repository. This improves the speed and efficiency of code intelligence requests such as finding definitions, references, and implementations. The feature is enabled by default, using the Microsoft C++ Language Server to parse compilation information and reuse symbol data.
https://github.blog/changelog/2026-09-22-faster-c-code-intelligence-with-whole-codebase-indexing
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