Changelog

All PRs to the Wasmer repository must add to this file.

Blocks of changes will separated by version increments.

[Unreleased]

Special thanks to @YaronWittenstein @penberg for their contributions.

#650 Implement wasi::path_rename, improve WASI FS public api, and allow open files to exist even when the underlying file is deleted
#643 Implement wasi::path_symlink and improve WASI FS public api IO error reporting
#608 Implement wasi syscalls fd_allocate, fd_sync, fd_pread, path_link, path_filestat_set_times; update WASI fs API in a WIP way; reduce coupling of WASI code to host filesystem; make debug messages from WASI more readable; improve rights-checking when calling syscalls; implement reference counting on inodes; misc bug fixes and improvements
#616 Create the import object separately from instance instantiation in runtime-c-api
#620 Replace one throw() with noexcept in llvm backend
#618 Implement InternalEvent::Breakpoint in the llvm backend to allow metering in llvm
#615 Eliminate FunctionEnvironment construction in feed_event() speeding up to 70% of compilation in clif
#609 Update dependencies
#602 C api extract instance context from instance
#590 Error visibility changes in wasmer-c-api
#589 Make wasmer_byte_array fields public in wasmer-c-api

#603 Update Wapm-cli, bump version numbers
#595 Add unstable public API for interfacing with the WASI file system in plugin-like usecases
#598 LLVM Backend is now supported in Windows
#599 Fix llvm backend failures in fat spec tests and simd_binaryen spec test.
#579 Fix bug in caching with LLVM and Singlepass backends. Add default-backend-singlepass, default-backend-llvm, and default-backend-cranelift features to wasmer-runtime to control the default_compiler() function (this is a breaking change). Add compiler_for_backend function in wasmer-runtime
#561 Call the data_finalizer field on the Ctx
#576 fix Drop of uninit Ctx
#542 Add SIMD support to Wasmer (LLVM backend only)
- Updates LLVM to version 8.0

#575 Prepare for release; update wapm to 0.3.6
#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

#565 Update wapm and bump version to 0.5.6
#563 Improve wasi testing infrastructure
- fixes arg parsing from comments & fixes the mapdir test to have the native code doing the same thing as the WASI code
- makes wasitests-generate output stdout/stderr by default & adds function to print stdout and stderr for a command if it fails
- compiles wasm with size optimizations & strips generated wasm with wasm-strip
#554 Finish implementation of wasi::fd_seek, fix bug in filestat
#550 Fix singlepass compilation error with imul instruction

#541 Fix dependency graph by making separate test crates; ABI implementations should not depend on compilers. Add Cranelift fork as git submodule of clif-backend
#537 Add hidden flag (--cache-key) to use prehashed key into the compiled wasm cache and change compiler backend-specific caching to use directories
#536 ~Update cache to use compiler backend name in cache key~

#529 Updates the Wasm Interface library, which is used by wapm, with bug fixes and error message improvements

#523 Update wapm version to fix bug related to signed packages in the global namespace and locally-stored public keys

#516 Add workaround for singlepass miscompilation on GetLocal
#521 Update Wapm-cli, bump version numbers
#518 Update Cranelift and WasmParser
#514 #519 Improved Emscripten network related calls, added a null check to WasmPtr
#515 Improved Emscripten dyncalls
#513 Fix emscripten lseek implementation.
#510 Simplify construction of floating point constants in LLVM backend. Fix LLVM assertion failure due to definition of %ctx.

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

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

#426 Update wapm-cli submodule, bump version to 0.4.1
#422 Improved Emscripten functions to run optipng and pngquant compiled to wasm
#409 Improved Emscripten functions to run JavascriptCore compiled to wasm
#399 Add example of using a plugin extended from WASI
#397 Fix WASI fs abstraction to work on Windows
#390 Pin released wapm version and add it as a git submodule
#408 Add images to windows installer and update installer to add wapm bin directory to path

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

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