# wasmtime-wasi-threads Implement the `wasi-threads` [specification] in Wasmtime. [specification]: https://github.com/WebAssembly/wasi-threads > Note: this crate is experimental and not yet suitable for use in multi-tenant > embeddings. As specified, a trap or WASI exit in one thread must end execution > for all threads. Due to the complexity of stopping threads, however, this > implementation currently exits the process entirely. This will work for some > use cases (e.g., CLI usage) but not for embedders. This warning can be removed > once a suitable mechanism is implemented that avoids exiting the process.