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JTC1/SC22/WG21 - The C++ Standards Committee - ISOCPP

News 2026-01-16:The deadline for the 2026-02 (pre-Croydon) mailing is Monday 2026-02-23 16:00 UTC
News 2026-01-16: The2026-01 mailing is available (2.4 MB tar.gz),individual papers
News 2025-12-20: TheC++ Standard Core Issues List (Revision 119) is available (.zip)
News 2025-12-15: The2025-12 post-Kona mailing is available (24 MB tar.gz),individual papers
News 2025-10-30: TheC++ Standard Library Issues List (Revision 125) is available (.zip)
News 2025-10-06: The2025-10 pre-Kona mailing is available (13 MB tar.gz),individual papers
News 2025-09-13: TheC++ Standard Core Issues List (Revision 118) is available (.zip)
News 2025-09-11: The2025-09 mailing is available (4.9 MB tar.gz),individual papers
News 2025-08-15: The2025-08 mailing is available (22 MB tar.gz),individual papers
News 2025-07-17: The2025-07 post-Sofia mailing is available (14 MB tar.gz),individual papers
News 2025-05-20: The revised (replacements for P3086R4 & P3100R2)2025-05 pre-Sofia mailing is available (19 MB tar.gz),individual papers
News 2025-05-19: The2025-05 pre-Sofia mailing is available (19 MB tar.gz),individual papers
News 2025-04-16: The2025-04 mailing is available (6.6 MB tar.gz),individual papers
News 2025-04-13: TheC++ Standard Core Issues List (Revision 117) is available (.zip)
News 2025-03-18: The2025-03 post-Hagenberg mailing is available (32 MB tar.gz),individual papers
News 2025-01-13: The2025-01 pre-Hagenberg mailing is available (16 MB tar.gz),individual papers
News 2025-01-06: TheC++ Standard Core Issues List (Revision 116) is available (.zip)
News 2024-12-17: The2024-12 post-Wrocław mailing is available (31000 kB tar.gz),individual papers

ISO/IEC JTC1/SC22/WG21is the international standardization working group for the programming language C++.

Publishedstandards and technical reports include:

ISO/IEC 14882:2017 Programming Language C++ -draft
ISO/IEC TR 18015:2006 Technical Report on C++ Performance -draft TR
ISO/IEC TR 24733:2011 Information technology - Extensions for the programming language C++ to support decimal floating-point arithmetic
ISO/IEC TR 19768:2007 Information technology - Technical Report on C++ Library Extensions
ISO/IEC 29124:2010 Information technology - Extensions to the C++ Library to support mathematical special functions
ISO 18446:2013 Technical Specification for C++ Extensions for Transactional Memory
ISO/IEC TS 19217:2015 Information technology - C++ Extensions for concepts

Work onprojects and theirmilestones include:

Other information:

Working draft - of the next standard
isocpp.org - Some further information on C++ standardization
wg21.link - WG21 redirect service
C++ Standard Core Issues List
C++ Standard Core Language Issues List
C++ Standard Library Issues List
C++ Standard Library Issues List
C++ Standard Evolution Issues List
WG papers
WG mailings
File System TS Issues List
ISO terminology standard ISO/IEC 2382
WG21 business plan and convener's report 2011
Information on past and futureWG meetings
Contacts:membership,liaisons andrelated work
ISO/IEC TR 24772 Information technology -- Programming languages -- Guidance to avoiding vulnerabilities in programming languages through language selection and use
WG internal information (For members of the C++ standardization committee)

If you want further information, or want to participate, please contactyour nationalmember bodyor one of thecontact addresses of the WG.

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