C++26

C++26 is the informal name for the open standard revision of the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) 14882 standard for the C++ programming language that follows C++23, officially shipped by WG21 on 28 March 2026. The current working revision of C++26 is N5046. Papers proposed and adopted into the standard by the C++ Standards Committee and minutes of the standardization meeting held at Sofia, Bulgaria and online in June 2025 are publicly available. The draft wording is feature complete, and is being sent out for international comment ballot. After resolving some ballot comments at the November 2025 standardization meeting in Kona, Hawaii, the C++ Standards Committee finished expected resolving ballot comments, technically finalized the draft, and send the draft out for final approval ballot at the following standardization meeting in London, United Kingdom from 23 to 28 of March 2026. Experimental and standard compilers implementing some of the upcoming features can be tried on short code snippets through the Compiler Explorer. Some of the compiler variants are distinguished only by the short identifiers of papers proposing the new features they implement, such as "P3372" for constexpr containers and adaptors. As of 30 April 2026, GCC supports most of the C++26 features beginning with GCC 16.1.