Wasmtime 40.0.0 ڈاؤن لوڈ

Added
- WASIp3 support for wasi:http now implements Response::from_http to convert from standard Rust types to WASI types. #12063
- Cranelift now supports a "patchable" ABI which has a maximum number of arguments and clobbers no registers. This is paired as well with a new patchable_call instruction which supports being turned into NOPs at runtime. #12061 #12101
Changed
- Support for the WebAssembly threads proposal is now classified as tier 2 by default. Additionally creation of SharedMemory is disabled by deafult behind a new config knob/CLI flag. #12036
- A variety of peephole-style optimizations have been added to Cranelift's optimization passes. #11994 #11995 #11996 #11997 #11998 #11999 #12000 #12006 #12008
- Component host functions have been slightly optimized to remove an Arc clone and reduce contention. #11987
- Support for component-model-async has been updated to account for the changes specified in WebAssembly/component-model#578. This means that historical binaries using WASIp3, for example, are no longer valid. Recompilation of historical components will be required and source-level changes may also be required in some circumstances. #12031 #12043
- The UnsyncBoxBody type is now used everywhere in wasmtime-wasi-http instead of just in the wasip3 support. #12060
- Initial groundwork for gracefully handling OOM (e.g. returning an error instead of aborting) has been added. #12070 #12089
- Wasmtime will create a private copy of code memory when guest debugging is enabled to assist with modifying code when adding/removing breakpoints. #12051
- The ResourceTable type will no longer use Tombstone when compiled in debug mode. #12114
- Intra-component future/stream reads/writes will now trap instead of accidentally being allowed. #12117
- Cranelift optimization rules have been tweaked after it was discovered that they could pessimize code containing long chains of computations. #12116
Fixed
- Compilation of i8x16.popcnt has been fixed in Winch for some potential inputs. #12010
- A panic in Instance::prepare_call for some component-model-async situations has been fixed. #12054
- An off-by-one error for lifting/lowering enums/variants with 255 cases has been fixed. #12066
- Restarting the read of a host future after cancellation has been fixed. #12093
- Compilation for OpenBSD on x86_64 has been fixed. #12097
- Components containing a module type which exoprts a tag are now supported. #12125