EDG C++ Front End to Become Open Source Under C++ Alliance Stewardship in 2026

Transition to Open Source

On September 30, 2026, the source code for EDG's C++ front end will be made public. This transition marks a significant change for the component, which has been used in C++ compilation across the industry for thirty years.

The C++ Alliance, a nonprofit organization, will assume stewardship of the EDG C++ front end. This arrangement is intended to provide continuity in maintenance and development, ensuring the engine's quality is sustained.

Role of The C++ Alliance

The C++ Alliance will serve as the nonprofit home for the EDG C++ front end. Its responsibilities include receiving and managing donations, sustaining engineering quality, and leveraging its expertise in C++ compiler development and standards.

The Alliance has established fiscal-sponsorship infrastructure and employs C++ compiler engineers, positioning it to manage the project effectively. Its roots in the C++ standards and Boost communities are also cited as beneficial.

Development and Contribution Model

The open-source EDG project will operate with three development tracks. The first track involves bug fixes and new features submitted by users as pull requests, reviewed by experienced EDG developers.

The second track covers immediate publication of bug fixes and maintenance by the Alliance's EDG developers. The third track allows for larger features to be developed and funded collectively by the community, with all funded features released simultaneously to everyone.

Ensuring Codebase Integrity

All changes, regardless of their origin track, will land in the same public repository at the same time. This approach ensures that no one receives early access to updates or features, maintaining a unified codebase for all users.

A Fiscal Sponsorship Committee (FSC) will oversee the entire process across all three development tracks, ensuring consistent management and integration of contributions.