C29 (C standard revision)

Uncommon card · No. 195488

C29 is the upcoming revision of the C programming language after C23 that is planned for release in late 2029, informally named C2Y. Early working drafts of C29 were released after the January 2024 WG14 meeting. The current working draft N3998 was released in October 2026. Changes have already started to be integrated in popular C/C++ compilers: GCC 15 and Clang 19. GCC supports and defaults to C23 support, and while no other compiler support, others have strong partial support, except for MSVC that has incomplete minimal support for it.

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