Wasmer

Added

- [1839](https://github.com/wasmerio/wasmer/pull/1839) Added support for Metering Middleware
- [1837](https://github.com/wasmerio/wasmer/pull/1837) It is now possible to use exports of an `Instance` even after the `Instance` has been freed
- [1831](https://github.com/wasmerio/wasmer/pull/1831) Added support for Apple Silicon chips (`arm64-apple-darwin`)
- [1739](https://github.com/wasmerio/wasmer/pull/1739) Improved function environment setup via `WasmerEnv` proc macro.
- [1649](https://github.com/wasmerio/wasmer/pull/1649) Add outline of migration to 1.0.0 docs.

Changed

- [1739](https://github.com/wasmerio/wasmer/pull/1739) Environments passed to host function- must now implement the `WasmerEnv` trait. You can implement it on your existing type with `#[derive(WasmerEnv)]`.
- [1838](https://github.com/wasmerio/wasmer/pull/1838) Deprecate `WasiEnv::state_mut`: prefer `WasiEnv::state` instead.
- [1663](https://github.com/wasmerio/wasmer/pull/1663) Function environments passed to host functions now must be passed by `&` instead of `&mut`. This is a breaking change. This change fixes a race condition when a host function is called from multiple threads. If you need mutability in your environment, consider using `std::sync::Mutex` or other synchronization primitives.
- [1830](https://github.com/wasmerio/wasmer/pull/1830) Minimum supported Rust version bumped to 1.47.0
- [1810](https://github.com/wasmerio/wasmer/pull/1810) Make the `state` field of `WasiEnv` public

Fixed

- [1857](https://github.com/wasmerio/wasmer/pull/1857) Fix dynamic function with new Environment API
- [1855](https://github.com/wasmerio/wasmer/pull/1855) Fix memory leak when using `wat2wasm` in the C API, the function now takes its output parameter by pointer rather than returning an allocated `wasm_byte_vec_t`.
- [1841](https://github.com/wasmerio/wasmer/pull/1841) We will now panic when attempting to use a native function with a captured env as a host function. Previously this would silently do the wrong thing. See [#1840](https://github.com/wasmerio/wasmer/pull/1840) for info about Wasmer's support of closures as host functions.
- [1764](https://github.com/wasmerio/wasmer/pull/1764) Fix bug in WASI `path_rename` allowing renamed files to be 1 directory below a preopened directory.

Added

- [1761](https://github.com/wasmerio/wasmer/pull/1761) Implement the `wasm_trap_t**` argument of `wasm_instance_new` in the Wasm C API.
- [1687](https://github.com/wasmerio/wasmer/pull/1687) Add basic table example; fix ownership of local memory and local table metadata in the VM.
- [1751](https://github.com/wasmerio/wasmer/pull/1751) Implement `wasm_trap_t` inside a function declared with `wasm_func_new_with_env` in the Wasm C API.
- [1741](https://github.com/wasmerio/wasmer/pull/1741) Implement `wasm_memory_type` in the Wasm C API.
- [1736](https://github.com/wasmerio/wasmer/pull/1736) Implement `wasm_global_type` in the Wasm C API.
- [1699](https://github.com/wasmerio/wasmer/pull/1699) Update `wasm.h` to its latest version.
- [1685](https://github.com/wasmerio/wasmer/pull/1685) Implement `wasm_exporttype_delete` in the Wasm C API.
- [1725](https://github.com/wasmerio/wasmer/pull/1725) Implement `wasm_func_type` in the Wasm C API.
- [1715](https://github.com/wasmerio/wasmer/pull/1715) Register errors from `wasm_module_serialize` in the Wasm C API.
- [1709](https://github.com/wasmerio/wasmer/pull/1709) Implement `wasm_module_name` and `wasm_module_set_name` in the Wasm(er) C API.
- [1700](https://github.com/wasmerio/wasmer/pull/1700) Implement `wasm_externtype_copy` in the Wasm C API.
- [1785](https://github.com/wasmerio/wasmer/pull/1785) Add more examples on the Rust API.
- [1783](https://github.com/wasmerio/wasmer/pull/1783) Handle initialized but empty results in `wasm_func_call` in the Wasm C API.
- [1780](https://github.com/wasmerio/wasmer/pull/1780) Implement new SIMD zero-extend loads in compiler-llvm.
- [1754](https://github.com/wasmerio/wasmer/pull/1754) Implement aarch64 ABI for compiler-llvm.
- [1693](https://github.com/wasmerio/wasmer/pull/1693) Add `wasmer create-exe` subcommand.

Changed

- [1772](https://github.com/wasmerio/wasmer/pull/1772) Remove lifetime parameter from `NativeFunc`.
- [1762](https://github.com/wasmerio/wasmer/pull/1762) Allow the `=` sign in a WASI environment variable value.
- [1710](https://github.com/wasmerio/wasmer/pull/1710) Memory for function call trampolines is now owned by the Artifact.
- [1781](https://github.com/wasmerio/wasmer/pull/1781) Cranelift upgrade to 0.67.
- [1777](https://github.com/wasmerio/wasmer/pull/1777) Wasmparser update to 0.65.
- [1775](https://github.com/wasmerio/wasmer/pull/1775) Improve LimitingTunables implementation.
- [1720](https://github.com/wasmerio/wasmer/pull/1720) Autodetect llvm regardless of architecture.

Fixed

- [1718](https://github.com/wasmerio/wasmer/pull/1718) Fix panic in the API in some situations when the memory's min bound was greater than the memory's max bound.
- [1731](https://github.com/wasmerio/wasmer/pull/1731) In compiler-llvm always load before store, to trigger any traps before any bytes are written.

Added
- [1635](https://github.com/wasmerio/wasmer/pull/1635) Implement `wat2wasm` in the Wasm C API.
- [1636](https://github.com/wasmerio/wasmer/pull/1636) Implement `wasm_module_validate` in the Wasm C API.
- [1657](https://github.com/wasmerio/wasmer/pull/1657) Implement `wasm_trap_t` and `wasm_frame_t` for Wasm C API; add examples in Rust and C of exiting early with a host function.

Fixed
- [1690](https://github.com/wasmerio/wasmer/pull/1690) Fix `wasm_memorytype_limits` where `min` and `max` represents pages, not bytes. Additionally, fixes the max limit sentinel value.
- [1671](https://github.com/wasmerio/wasmer/pull/1671) Fix probestack firing inappropriately, and sometimes over/under allocating stack.
- [1660](https://github.com/wasmerio/wasmer/pull/1660) Fix issue preventing map-dir aliases starting with `/` from working properly.
- [1624](https://github.com/wasmerio/wasmer/pull/1624) Add Value::I32/Value::I64 converters from unsigned ints.

Changed
- [1682](https://github.com/wasmerio/wasmer/pull/1682) Improve error reporting when making a memory with invalid settings.
- [1691](https://github.com/wasmerio/wasmer/pull/1691) Bump minimum supported Rust version to 1.46.0
- [1645](https://github.com/wasmerio/wasmer/pull/1645) Move the install script to https://github.com/wasmerio/wasmer-install

Fixed

- [1620](https://github.com/wasmerio/wasmer/pull/1620) Fix bug causing the Wapm binary to not be packaged with the release
- [1619](https://github.com/wasmerio/wasmer/pull/1619) Improve error message in engine-native when C compiler is missing

1.0.0-alpha02.0 - 2020-09-11

Added

- [1566](https://github.com/wasmerio/wasmer/pull/1566) Add support for opening special Unix files to the WASI FS

Fixed

- [1602](https://github.com/wasmerio/wasmer/pull/1602) Fix panic when calling host functions with negative numbers in certain situations
- [1590](https://github.com/wasmerio/wasmer/pull/1590) Fix soundness issue in API of vm::Global

TODO: 1.0.0-alpha01.0

- Wasmer refactor lands

Changed
- [1439](https://github.com/wasmerio/wasmer/pull/1439) Move `wasmer-interface-types` into its own repository

Fixed

- [1554](https://github.com/wasmerio/wasmer/pull/1554) Update supported stable Rust version to 1.45.2.
- [1552](https://github.com/wasmerio/wasmer/pull/1552) Disable `sigint` handler by default.

Added
- [1331](https://github.com/wasmerio/wasmer/pull/1331) Implement the `record` type and instrutions for WIT
- [1345](https://github.com/wasmerio/wasmer/pull/1345) Adding ARM testing in Azure Pipelines
- [1329](https://github.com/wasmerio/wasmer/pull/1329) New numbers and strings instructions for WIT
- [1285](https://github.com/wasmerio/wasmer/pull/1285) Greatly improve errors in `wasmer-interface-types`
- [1303](https://github.com/wasmerio/wasmer/pull/1303) NaN canonicalization for singlepass backend.
- [1313](https://github.com/wasmerio/wasmer/pull/1313) Add new high-level public API through `wasmer` crate. Includes many updates including:
- Minor improvement: `imports!` macro now handles no trailing comma as well as a trailing comma in namespaces and between namespaces.
- New methods on `Module`: `exports`, `imports`, and `custom_sections`.
- New way to get exports from an instance with `let func_name: Func<i32, i64> = instance.exports.get("func_name");`.
- Improved `Table` APIs including `set` which now allows setting functions directly. TODO: update this more if `Table::get` gets made public in this PR
- TODO: finish the list of changes here
- [1305](https://github.com/wasmerio/wasmer/pull/1305) Handle panics from DynamicFunc.
- [1300](https://github.com/wasmerio/wasmer/pull/1300) Add support for multiple versions of WASI tests: wasitests now test all versions of WASI.
- [1292](https://github.com/wasmerio/wasmer/pull/1292) Experimental Support for Android (x86_64 and AArch64)

Fixed
- [1283](https://github.com/wasmerio/wasmer/pull/1283) Workaround for floating point arguments and return values in `DynamicFunc`s.

Changed
- [1401](https://github.com/wasmerio/wasmer/pull/1401) Make breaking change to `RuntimeError`: `RuntimeError` is now more explicit about its possible error values allowing for better insight into why a call into Wasm failed.
- [1382](https://github.com/wasmerio/wasmer/pull/1382) Refactored test infranstructure (part 2)
- [1380](https://github.com/wasmerio/wasmer/pull/1380) Refactored test infranstructure (part 1)
- [1357](https://github.com/wasmerio/wasmer/pull/1357) Refactored bin commands into separate files
- [1335](https://github.com/wasmerio/wasmer/pull/1335) Change mutability of `memory` to `const` in `wasmer_memory_data_length` in the C API
- [1332](https://github.com/wasmerio/wasmer/pull/1332) Add option to `CompilerConfig` to force compiler IR verification off even when `debug_assertions` are enabled. This can be used to make debug builds faster, which may be important if you're creating a library that wraps Wasmer and depend on the speed of debug builds.
- [1320](https://github.com/wasmerio/wasmer/pull/1320) Change `custom_sections` field in `ModuleInfo` to be more standards compliant by allowing multiple custom sections with the same name. To get the old behavior with the new API, you can add `.last().unwrap()` to accesses. For example, `module_info.custom_sections["custom_section_name"].last().unwrap()`.
- [1301](https://github.com/wasmerio/wasmer/pull/1301) Update supported stable Rust version to 1.41.1.