wasi-sdk-20

This release largely consists of changes in two directions: a) wasi-sdk now is built upon LLVM 16 and b) it includes experimental support for the wasm32-wasi-threads target. Note that wasm32-wasi-threads is much less stable than the default target, wasm32-wasi; since the wasi-sdk-20+threads pre-release, wasm32-wasi-threads has received several fixes and improvements, but use at your own risk.

What's Changed

• Only push docker image on push or tag by @anuraaga in #288
• add experimenal wasm32-wasi-threads support by @yamt in #274
• Update wasi-libc to latest HEAD by @abrown in #290
• ci: document and script the release process by @abrown in #295
• Get arch from system when building debian package by @johalun in #298
• Build libcxxabi and libcxx with threads enabled by @whitequark in #301
• download-workflow-artifacts.sh: skip dist-ubuntu-latest by @yamt in #307
• Downgrade OSX deployment target to 10.12 by @abrown in #308
• wasi-libc: upgrade to latest main branch by @abrown in #313
• llvm: update to LLVM 16.0.0 by @abrown in #314
• Force clang as CMake Assembly compiler, with wasm32-wasi triple by @directhex in #315
• Update docker build to use LLVM 16 by @anuraaga in #316
• wasi-libc: update to include atomic barrier fix by @abrown in #317

New Contributors

• @johalun made their first contribution in #298
• @whitequark made their first contribution in #301
• @directhex made their first contribution in #315

Full Changelog: wasi-sdk-19...wasi-sdk-20