WG21 in Stockholm, Sweden, in July 1996
Photo by Jonathan Schilling.

// about wg21.org

WG21.org is a volunteer effort to make information from WG21, the ISO working group responsible for the C++ Programming Language standard (ISO/IEC 14882), easily accessible to the public. WG21 formed in 1990–91 under JTC1/SC22, it operates with delegates from over 20 national bodies and produces the specification used by systems programmers worldwide.1

20+ nations
15 active SGs
597 papers
isocpp.org
// site highlights

ENHANCED MAILINGS

Browse

A cleaner, searchable view of the WG21 mailing. Filter by working group, navigate between months, and download per-room reports. The papers themselves remain hosted on the official WG21 site. We just make browsing easier.

Live now

C++ ALLIANCE

WG21.org Independent Tools
by the C++ Alliance

Every developer deserves world-class tools and education. Every critical system deserves secure code. Every brilliant idea deserves the resources to become reality.

This is what we do, we build.

// recent papers
PAPER TITLE AUDIENCE DATE
n5056 Business Plan and Convener's Report: ISO/IEC JTC 1/SC 22/WG 21 (C++) WG21 2026-07-28
p2249r7 Mixed comparisons for smart pointers LEWGLWG 2026-07-22
p2806r5 do expressions EWG 2026-08-12
p3100r8 A framework for systematically addressing undefined behaviour in the C++ Standard EWGLEWG 2026-08-14
p3139r2 Pointer cast for unique_ptr LEWG 2026-08-14
read more
// standards track
  1. C++98
  2. C++03
  3. C++11
  4. C++14
  5. C++17
  6. C++20
  7. C++23
  8. C++26
  9. C++29

triennial release cadence · C++29 working draft in progress · ISO/IEC 14882