1. Concurrency Improvements: C++26 introduces std::execution framework for managing asynchronous tasks across different resources using schedulers, senders, and receivers.
2. Safety Profiles: C++26 adds safety profiles to enforce stricter rules for security, focusing on type safety, bounds checking, and lifetime safety.
3. Contracts: C++26 incorporates contracts for setting preconditions, postconditions, and invariants in functions to aid in bug detection and fixing.
4. Saturation Arithmetic: C++26 includes saturation arithmetic to limit arithmetic operations within specific ranges, preventing overflow errors.