Released 2020-02-26.
Added
* Support for the [WebAssembly text annotations proposal][annotations-proposal]
has been added.
[998](https://github.com/bytecodealliance/wasmtime/pull/998)
* An initial C API for instantiating WASI modules has been added.
[977](https://github.com/bytecodealliance/wasmtime/pull/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](https://github.com/bytecodealliance/wasmtime/pull/955)
* Initial support for profiling JIT code through perf jitdump has been added.
[360](https://github.com/bytecodealliance/wasmtime/pull/360)
* More CLI flags corresponding to proposed WebAssembly features have been added.
[917](https://github.com/bytecodealliance/wasmtime/pull/917)
[annotations-proposal]: https://github.com/webassembly/annotations
Changed
* The `wasmtime` CLI as well as embedding API will optimize WebAssembly code by
default now.
[973](https://github.com/bytecodealliance/wasmtime/pull/973)
[988](https://github.com/bytecodealliance/wasmtime/pull/988)
* The `verifier` pass in Cranelift is now no longer run by default when using
the embedding API.
[882](https://github.com/bytecodealliance/wasmtime/pull/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](https://github.com/bytecodealliance/wasmtime/pull/974)
* Automated releases for tags should be up and running again, along with
automatic publication of the `wasmtime` Python package.
[971](https://github.com/bytecodealliance/wasmtime/pull/971)