This stable release adds support for the exception handling proposal on Linux and Darwin platforms when using LLVM, adds a new LLVM-specific optimization (--enable-pass-params-opt), allows for multiple heterogeneous backends to be embedded in the same Wasmer build (--llvm, --cranelift, --singlepass, --v8, --wamr, --wasmi), adds support for process spawning without asyncify via full support for posix_spawn in wasix-libc with the new proc_spawn2 syscall, a number of QoL improvements to CLI commands and WASIX and much more.

Read more about the Wasmer 6.0 release here: https://wasmer.io/posts/announcing-wasmer-6-closer-to-native-speeds

Install this version of Wasmer:

curl https://get.wasmer.io -sSfL | sh -s "v6.0.0"

See full list of changes in the CHANGELOG

This beta release fixes a bug in virtual-fs together with other fixes to WASIX, adds various functions to check the features of a WebAssembly module given its bytes, adds a mechanism to the CLI to automatically switch to a suitable engine when needed, such as running a module with exception handling without specifying --llvm and, finally, also adds QoL improvements to the package unpack command in the CLI.

Install this version of wasmer:

curl https://get.wasmer.io -sSfL | sh -s "v6.0.0-beta.1"

See full list of changes in the CHANGELOG

This release fixes an out-of-bound memory access when using LLVM on aarch64. Furthermore, it adds proper support for the posix_spawn function without a need for asyncify.

Install this version of wasmer:

curl https://get.wasmer.io -sSfL | sh -s "v6.0.0-alpha.2"

See full list of changes in the CHANGELOG

This alpha release adds support for multiple heterogeneous backends to be enabled at the same time. For example, the llvm, v8 and wamr backends can be enabled in a single binary release. Furthermore, this release adds initial support for the exception handling proposal on linux-x64, linux-aarch64 and macOS through LLVM. This release also contains improvements to process spawning in WASIX.

Install this version of Wasmer with:

curl https://get.wasmer.io -sSfL | sh -s "v6.0.0-alpha.1"

Install this version of wasmer:

curl https://get.wasmer.io -sSfL | sh -s "v5.0.5-rc1"

See full list of changes in the CHANGELOG

This release fixes minor bugs and adds spurious improvements.

This release adds support for a more fine-grained and flexible control over the network sandbox. Also, some bug fixes and improvements are included.

This release mostly consists of bug fixes and clean ups.

This release adds LLVM support to MacOS ARM64 binaries and contains minor fixes and improvements.

The main star of this release is the experimental support for three new backends: v8, wamr and wasmi. Also, many dependencies, namely LLVM, Cranelift, and rkyv are updated which bring significant enhancements.

Read more about the announcement here: https://wasmer.io/posts/introducing-wasmer-v5