C++26

29 January 2025 by Phillip Johnston • Last updated 10 December 2025

C++26 is the informal name for the standard following C++23. A full list of changes along with implementation status can be found on cppreference.

Exploring the Changes

C++ trainer Rainer Grimm has published a series of articles covering changes in the new standard version:

• C++26: The Next C++ Standard
• An Overview of C++26: Core Language
• An Overview of C++26: The Library
• An Overview of C++26: Concurrency
• An Overview Of C++26: The Library – Math
• Reflection in C++26
• Reflection in C++26: Metafunctions
• Reflection in C++26: Metafunctions for Enums and Classes
• Reflection in C++26: Determine the Layout
• Contracts in C++26
• Placeholders and Extended Character Set
• C++26 Core Language: Small Improvements
• std::execution
• std::execution: Asynchronous Algorithms
• std::execution: Inclusive Scan
• std::execution: Composition of Senders
• std::execution: Sender
• std::execution: More Senders
• C++26 Library: string and string_view Processing
• std::format Extension
• Deferred Reclamation in C++26: Read-Copy Update and Hazard Pointers

Using C++26 Capabilities

Rainer Grimm has published a series on implementing a lock-free stack using new C++26 capabilities:

• Deferred Reclamation in C++26: Read-Copy Update and Hazard Pointers
• A Lock-Free Stack: A Simplified Implementation
• A Lock-Free Stack: A Complete Implementation
• A Lock-Free Stack: Atomic Smart Pointer
• A Lock-Free Stack: A Simple Garbage Collector
• A Lock-Free Stack: A Hazard Pointer Implementation
• A Lock-Free Stack: A Hazard Pointer Implementation Explained I

References

• C++26 – cppreference.com

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