Wasmer

- [471](https://github.com/wasmerio/wasmer/pull/471) Added missing functions to run Python. Improved Emscripten bindings
- [494](https://github.com/wasmerio/wasmer/pull/494) Remove deprecated type aliases from libc in the runtime C API
- [493](https://github.com/wasmerio/wasmer/pull/493) `wasmer_module_instantiate` has better error messages in the runtime C API
- [474](https://github.com/wasmerio/wasmer/pull/474) Set the install name of the dylib to `rpath`
- [490](https://github.com/wasmerio/wasmer/pull/490) Add MiddlewareChain and StreamingCompiler to runtime
- [487](https://github.com/wasmerio/wasmer/pull/487) Fix stack offset check in singlepass backend
- [450](https://github.com/wasmerio/wasmer/pull/450) Added Metering
- [481](https://github.com/wasmerio/wasmer/pull/481) Added context trampoline into runtime
- [484](https://github.com/wasmerio/wasmer/pull/484) Fix bugs in emscripten socket syscalls
- [476](https://github.com/wasmerio/wasmer/pull/476) Fix bug with wasi::environ_get, fix off by one error in wasi::environ_sizes_get
- [470](https://github.com/wasmerio/wasmer/pull/470) Add mapdir support to Emscripten, implement getdents for Unix
- [467](https://github.com/wasmerio/wasmer/pull/467) `wasmer_instantiate` returns better error messages in the runtime C API
- [463](https://github.com/wasmerio/wasmer/pull/463) Fix bug in WASI path_open allowing one level above preopened dir to be accessed
- [461](https://github.com/wasmerio/wasmer/pull/461) Prevent passing negative lengths in various places in the runtime C API
- [459](https://github.com/wasmerio/wasmer/pull/459) Add monotonic and real time clocks for wasi on windows
- [447](https://github.com/wasmerio/wasmer/pull/447) Add trace macro (`--features trace`) for more verbose debug statements
- [451](https://github.com/wasmerio/wasmer/pull/451) Add `--mapdir=src:dest` flag to rename host directories in the guest context
- [457](https://github.com/wasmerio/wasmer/pull/457) Implement file metadata for WASI, fix bugs in WASI clock code for Unix platforms

- [416](https://github.com/wasmerio/wasmer/pull/416) Remote code loading framework
- [449](https://github.com/wasmerio/wasmer/pull/449) Fix bugs: opening host files in filestat and opening with write permissions unconditionally in path_open
- [442](https://github.com/wasmerio/wasmer/pull/442) Misc. WASI FS fixes and implement readdir
- [440](https://github.com/wasmerio/wasmer/pull/440) Fix type mismatch between `wasmer_instance_call` and `wasmer_export_func_*_arity` functions in the runtime C API.
- [269](https://github.com/wasmerio/wasmer/pull/269) Add better runtime docs
- [432](https://github.com/wasmerio/wasmer/pull/432) Fix returned value of `wasmer_last_error_message` in the runtime C API
- [429](https://github.com/wasmerio/wasmer/pull/429) Get wasi::path_filestat_get working for some programs; misc. minor WASI FS improvements
- [413](https://github.com/wasmerio/wasmer/pull/413) Update LLVM backend to use new parser codegen traits

- [426](https://github.com/wasmerio/wasmer/pull/426) Update wapm-cli submodule, bump version to 0.4.1
- [422](https://github.com/wasmerio/wasmer/pull/422) Improved Emscripten functions to run optipng and pngquant compiled to wasm
- [409](https://github.com/wasmerio/wasmer/pull/409) Improved Emscripten functions to run JavascriptCore compiled to wasm
- [399](https://github.com/wasmerio/wasmer/pull/399) Add example of using a plugin extended from WASI
- [397](https://github.com/wasmerio/wasmer/pull/397) Fix WASI fs abstraction to work on Windows
- [390](https://github.com/wasmerio/wasmer/pull/390) Pin released wapm version and add it as a git submodule
- [408](https://github.com/wasmerio/wasmer/pull/408) Add images to windows installer and update installer to add wapm bin directory to path

- [383](https://github.com/wasmerio/wasmer/pull/383) Hook up wasi exit code to wasmer cli.
- [382](https://github.com/wasmerio/wasmer/pull/382) Improve error message on `--backend` flag to only suggest currently enabled backends
- [381](https://github.com/wasmerio/wasmer/pull/381) Allow retrieving propagated user errors.
- [379](https://github.com/wasmerio/wasmer/pull/379) Fix small return types from imported functions.
- [371](https://github.com/wasmerio/wasmer/pull/371) Add more Debug impl for WASI types
- [368](https://github.com/wasmerio/wasmer/pull/368) Fix issue with write buffering
- [343](https://github.com/wasmerio/wasmer/pull/343) Implement preopened files for WASI and fix aligment issue when accessing WASI memory
- [367](https://github.com/wasmerio/wasmer/pull/367) Add caching support to the LLVM backend.
- [366](https://github.com/wasmerio/wasmer/pull/366) Remove `UserTrapper` trait to fix [#365](https://github.com/wasmerio/wasmer/issues/365).
- [348](https://github.com/wasmerio/wasmer/pull/348) Refactor internal runtime ↔️ backend abstraction.
- [355](https://github.com/wasmerio/wasmer/pull/355) Misc changes to `Cargo.toml`s for publishing
- [352](https://github.com/wasmerio/wasmer/pull/352) Bump version numbers to 0.3.0
- [351](https://github.com/wasmerio/wasmer/pull/351) Add hidden option to specify wasm program name (can be used to improve error messages)
- [350](https://github.com/wasmerio/wasmer/pull/350) Enforce that CHANGELOG.md is updated through CI.
- [349](https://github.com/wasmerio/wasmer/pull/349) Add [CHANGELOG.md](https://github.com/wasmerio/wasmer/blob/master/CHANGELOG.md).

- [555](https://github.com/wasmerio/wasmer/pull/555) WASI filesystem rewrite. Major improvements
- adds virtual root showing all preopened directories
- improved sandboxing and code-reuse
- symlinks work in a lot more situations
- many misc. improvements to most syscalls touching the filesystem

- [276](https://github.com/wasmerio/wasmer/pull/276) [#288](https://github.com/wasmerio/wasmer/pull/288) [#344](https://github.com/wasmerio/wasmer/pull/344) Use new singlepass backend (with the `--backend=singlepass` when running Wasmer)
- [338](https://github.com/wasmerio/wasmer/pull/338) Actually catch traps/panics/etc when using a typed func.
- [325](https://github.com/wasmerio/wasmer/pull/325) Fixed func_index in debug mode
- [323](https://github.com/wasmerio/wasmer/pull/323) Add validate subcommand to validate Wasm files
- [321](https://github.com/wasmerio/wasmer/pull/321) Upgrade to Cranelift 0.3.0
- [319](https://github.com/wasmerio/wasmer/pull/319) Add Export and GlobalDescriptor to Runtime API
- [310](https://github.com/wasmerio/wasmer/pull/310) Cleanup warnings
- [299](https://github.com/wasmerio/wasmer/pull/299) [#300](https://github.com/wasmerio/wasmer/pull/300) [#301](https://github.com/wasmerio/wasmer/pull/301) [#303](https://github.com/wasmerio/wasmer/pull/303) [#304](https://github.com/wasmerio/wasmer/pull/304) [#305](https://github.com/wasmerio/wasmer/pull/305) [#306](https://github.com/wasmerio/wasmer/pull/306) [#307](https://github.com/wasmerio/wasmer/pull/307) Add support for WASI 🎉
- [286](https://github.com/wasmerio/wasmer/pull/286) Add extend to imports
- [278](https://github.com/wasmerio/wasmer/pull/278) Add versioning to cache
- [250](https://github.com/wasmerio/wasmer/pull/250) Setup bors