Besides the other comments here, currently its mostly: * wasm64: allowing more than 4gb RAM usage * wasm virtual memory: allowing real memory allocation/freei

Besides the other comments here, currently its mostly: * wasm64: allowing more than 4gb RAM usage * wasm virtual memory: allowing real memory allocation/freeing from wasm outside of the monolithic memory model Both of these things are necessary for many complicated applications to run inside the browser seamlessly at high performance, both of these things have been on the WASM horizon for years and have made little or no progress.