Wasmtime Releases

0.12.0

Released 2020-02-26.

Added

Support for the WebAssembly text annotations proposal has been added. #998
An initial C API for instantiating WASI modules has been added. #977
A new suite of Func::getN functions have been added to the wasmtime API to call statically-known function signatures in a highly optimized fashion. #955
Initial support for profiling JIT code through perf jitdump has been added. #360
More CLI flags corresponding to proposed WebAssembly features have been added. #917

Changed

The wasmtime CLI as well as embedding API will optimize WebAssembly code by default now. #973 #988
The verifier pass in Cranelift is now no longer run by default when using the embedding API. #882

Fixed

Code caching now accurately accounts for optimization levels, ensuring that if you ask for optimized code you're not accidentally handed unoptimized code from the cache. #974
Automated releases for tags should be up and running again, along with automatic publication of the wasmtime Python package. #971