WASM 3.0 Completed
Wasm 3.0 Completed Published on September 17, 2025 by Andreas Rossberg. Three years ago, version 2.0 of the Wasm standard was (essentially) finished, which brought a number of new features, such as vector instructions, bulk memory operations, multiple return values, and simple reference types. In the meantime, the Wasm W3C Community Group and Working Group have not been lazy. Today, we are happy to announce the release of Wasm 3.0 as the new “live” standard. This is a substantially larger update: several big features, some of which have been in the making for six or eight years, finally made it over the finishing line. 64-bit address space. Memories and tables can now be declared to use i64 as their address type instead of just i32. That expands the available address space of…
