Python 3.13 introduce de forma experimental la ejecución sin GIL mediante PEP 703. Tras unos meses de rodaje empiezan a verse pruebas reales fuera del laboratorio. Conviene entender bien qué ganas, qué pierdes y qué no cambia todavía.
WASI 0.3, also known as preview 3, was ratified on June 11, 2026, adding native asynchronous concurrency to the WebAssembly component model through streams, futures, and async functions. It fixes old fragmentation across languages and runtimes, enables real composition between Wasm services, and paves the way for cooperative threads planned in upcoming 0.3.x releases.
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