JSON just got way better (yes really)

Chrome's V8 engine has dramatically improved JSON.stringify performance by up to 3x through several optimizations: a new side-effect-free fast path that bypasses expensive checks, specialized string handling for one-byte vs two-byte characters, SIMD instructions for escape character detection, hidden class caching for repeated object shapes, segmented buffer allocation to eliminate copying overhead, and upgrading to the DragonBox algorithm for number-to-string conversion. These improvements are available in Chrome 138 and benefit most common JSON serialization use cases automatically.