0.5.5

This version of wasmer improves significantly the Emscripten backend making it compatible with the latest Emscripten LLVM release. It also improves the dependency graph between modules and improves the caching strategies.

Changelog

• #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

0.5.4

Changelog

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

0.5.3

Changelog

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

0.5.2

This version improves significantly the Emscripten integration, making it possible to handle networking and filesystem much better. Wasmer can now run Python! 🎉
This version also ships with the wapm-cli with changes that improve filesystem usage, and introducing wasm interfaces to statically analyze modules before uploading them to wapm.

Changelog

• #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.

0.5.1

Changelog

• #508 Update wapm version, includes bug fixes

0.5.0

This version of Wasmer ships with a much more stable version of WASI, supporting environment variables and directory mapping. It also ships with wapm 0.3.0 that includes support for package signing and contracts.
Apart of the fixes we improved the Emscripten integration, that now is able to run python and openssl.

Changeleog

• #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

0.4.2

This version of Wasmer ships with multiple WASI improvements, fixes on the C-API integration and the first iteration of our refactor of different backends (singlepass and LLVM).
This version also ships with a kernel loader that is able to run WebAssembly on the kernel, more info here.

Changelog

• #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

0.4.1

Changelog

• #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

0.4.0 (wasmer + wapm)

Wasmer now ships with wapm 🎉.
WAPM is a Package Manager for WebAssembly that will improve your experience for installing, using and publishing WebAssembly modules. Here's a video showcasing it: https://www.youtube.com/watch?v=qDRcHIBFu0c

Apart of shipping with wapm, the stability of the runtime has been improved significantly and support for WASI is more mature.

Changelog

• #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.

0.3.0

Wasmer now supports WASI 🎉.
The emscripten implementation has improved vastly, and now Wasmer can run PHP, SQLite and Lua (check them on the examples dir on this repo)
The wasmer CLI now ships with three different backends: Singlepass (fast compilation), Cranelift (default) and LLVM (fast runtime). You can try it with wasmer run --backend=singlepass ...
We also improved the APIs and shipped tons of bug fixes and improvements.

Changelog

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

Emscripten

• Allow resize_heap to grow heap in emscripten  #335
• Fix lstat64; heap size; and stat #332
• Implement strftime #330
• Improved syscalls #329 #328 #326 #289 #285
• Add more stubs for pthreading, exceptions, and some invokes #314
• Auto generate null funcs #295
• Added support for symbol maps to improve debugging #294
• Fix arg passing to getcwd sys call #292
• Fix alignment check on pointer #291

Runtime C API

• Split lib.rs into modules #312
• Implement wasmer_export_to_memory function #296
• Mirror the debug and llvm features #280
• Implement wasmer_module_serialize and wasmer_module_deserialize #271
• Add an API to update vm::Ctx.data #261
• Fix the imports length #260
• Fix C API table/global/memory imports #227

Docs

• Add FreeBSD installation instructions for CMake #315
• Add basic README to libs #311
• Fix typo #256
• Improve runtime c api #242