# Hermes Blog

Technical articles and deep dives into Hermes internals.

## Posts

### 2026

- **Jun 5** - [What's New in the Next Stable Release 260318099.0.0](2026-06-05-new-hermes-stable-release.md) - New JS features, faster JSON/Map, Unicode 17, and bug fixes.

### 2025

- **Dec 12** - [New Way to Contribute to Hermes](2025-12-12-new-way-to-contribute.md) - JSI-based extensions make contributing easier and safer.
- **Dec 2** - [ISerialization: Efficient Binary Encoding for JS Values](2025-12-02-iserialization.md) - New serialization API for passing values between runtimes.
- **Nov 24** - [JSON Parsing Performance: 2.7x-3.4x Faster](2025-11-24-json-parsing-performance.md) - Major JSON.parse() optimizations now in static_h.
- **Nov 6** - [Hermes Memory Modes](2025-11-06-hermes-memory-modes.md) - HV64 vs HV32 and how Hermes handles different platforms.
- **Nov 2** - [Hermes Compilation and Runtime Modes](2025-11-02-hermes-compilation-runtime-modes.md) - Overview of AOT, bytecode, JIT, and how they can be mixed.
- **Jul 15** - [Static_h Branch Performance: June 2025 Update](2025-07-15-static-h-performance-june-2025.md) - hv32+jit and hv32+interpreter benchmarks vs QuickJS and Hermes.
- **Jun 9** - [Introducing JSI's New Runtime Data APIs](2025-06-09-jsi-runtime-data-apis.md) - New setRuntimeData/getRuntimeData methods for per-runtime storage.

### 2024

- **Dec 23** - [Compiling Full-Featured JavaScript to Wasm](2024-12-23-compiling-javascript-to-wasm.md) - How Static Hermes compiles ES6 to WebAssembly.
- **Dec 19** - [Static Hermes Update, December 2024](2024-12-19-static-hermes-update-dec-2024.md) - ES6 classes, block scoping, and Octane benchmark improvements.
- **Nov 9** - [Octane Benchmark Results: Hermes JIT Progress](2024-11-09-octane-benchmark-jit-progress.md) - Comparing original Hermes, static_h branch, and JIT on Raspberry Pi.