LLVM 22 Expected with C++26 Features
LLVM 22 is expected to release in February 2026 with continued C++26 feature adoption, including support for reflection and contracts, plus new IR instructions for enhanced architecture support.
LLVM 22 is entering its final development phase with an expected release in February 2026. The compiler infrastructure update continues rapid adoption of C++26 features as the language standard nears finalization.
C++26 Language Support
C++26 has been finalized with several major features including reflection (enabling compile-time introspection) and contracts (for formal specification of function behavior). WG21, the C++ standards committee, rejected borrow checking for Profiles but adopted Trivial Relocatability (P2786), which enables more efficient object movement. LLVM 22 is implementing these features as they become standardized, maintaining the project's position as a leading C++ compiler implementation alongside GCC and MSVC.
LLVM IR Improvements
Beyond C++ language features, LLVM 22 introduces infrastructure improvements including a new ptrtoaddr instruction. This addition resolves long-standing discussions about the semantics of ptrtoint operations and pointer comparisons, particularly for CHERI architectures which require more precise pointer provenance tracking. The change improves LLVM's ability to generate correct code for capability-based security architectures.
Ecosystem and Adoption
CppCon 2026, scheduled for September 12-18 in Aurora, Colorado, will celebrate the finalized C++26 standard. The conference will provide developers with insights into using new language features and best practices for adoption. ReSharper C++ 2025.3 already added C++26 language support, demonstrating tooling readiness for the new standard. LLVM 22's support for these features ensures developers can start using C++26 capabilities as soon as the standard is ratified.
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