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Add release notes for 8.0.0 #6145

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Add release notes for 8.0.0 #6145

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Start updating release notes for the 8.0.0 release
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85 changes: 85 additions & 0 deletions RELEASES.md
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Expand Up @@ -6,8 +6,87 @@ Unreleased.

### Added

* Allow the MPL-2.0 and OpenSSL licenses in dependencies of wasmtime.
[#6136](https://github.com/bytecodealliance/wasmtime/pull/6136)

* The initial integration between winch and wasmtime has landed behind a cargo
feature.
[#6119](https://github.com/bytecodealliance/wasmtime/pull/6119)
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* Add a bounds-checking optimization for dynamic memories and guard pages.
[#6031](https://github.com/bytecodealliance/wasmtime/pull/6031)

* Add support for generating perf maps for simple perf profiling.
[#6030](https://github.com/bytecodealliance/wasmtime/pull/6030)
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* Add the `--default-values-unknown-imports` option to define unknown function
imports as functions that return the default value for their result type.
[#6010](https://github.com/bytecodealliance/wasmtime/pull/6010)

* Introduce the `wasmtime-explorer` crate for investigating the compilation of
wasm modules.
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[#5975](https://github.com/bytecodealliance/wasmtime/pull/5975)

* Added support for the Relaxed SIMD proposal.
[#5892](https://github.com/bytecodealliance/wasmtime/pull/5892)

* Cranelift gained many new machine-independent optimizations.
[#5909](https://github.com/bytecodealliance/wasmtime/pull/5909)
[#6032](https://github.com/bytecodealliance/wasmtime/pull/6032)
[#6033](https://github.com/bytecodealliance/wasmtime/pull/6033)
[#6034](https://github.com/bytecodealliance/wasmtime/pull/6034)
[#6037](https://github.com/bytecodealliance/wasmtime/pull/6037)
[#6052](https://github.com/bytecodealliance/wasmtime/pull/6052)
[#6053](https://github.com/bytecodealliance/wasmtime/pull/6053)
[#6072](https://github.com/bytecodealliance/wasmtime/pull/6072)
[#6095](https://github.com/bytecodealliance/wasmtime/pull/6095)
[#6130](https://github.com/bytecodealliance/wasmtime/pull/6130)

### Changed

* Derive `Copy` on `wasmtime::ValType`.
[#6138](https://github.com/bytecodealliance/wasmtime/pull/6138)

* Make `StoreContextMut` accessible in the epoch deadline callback.
[#6075](https://github.com/bytecodealliance/wasmtime/pull/6075)

* Take SIGFPE signals for divide traps on `x86_64`.
[#6026](https://github.com/bytecodealliance/wasmtime/pull/6026)

* Use more specialized AVX instructions in the `x86_64` backend.
[#5924](https://github.com/bytecodealliance/wasmtime/pull/5924)
[#5930](https://github.com/bytecodealliance/wasmtime/pull/5930)
[#5931](https://github.com/bytecodealliance/wasmtime/pull/5931)
[#5982](https://github.com/bytecodealliance/wasmtime/pull/5982)
[#5986](https://github.com/bytecodealliance/wasmtime/pull/5986)
[#5999](https://github.com/bytecodealliance/wasmtime/pull/5999)
[#6023](https://github.com/bytecodealliance/wasmtime/pull/6023)
[#6025](https://github.com/bytecodealliance/wasmtime/pull/6025)
[#6060](https://github.com/bytecodealliance/wasmtime/pull/6060)
[#6086](https://github.com/bytecodealliance/wasmtime/pull/6086)
[#6092](https://github.com/bytecodealliance/wasmtime/pull/6092)

* Generate more cache-friendly code for traps.
[#6011](https://github.com/bytecodealliance/wasmtime/pull/6011)

### Fixed

* Fixed suboptimal code generation in the `aarch64` backend.
[#5976](https://github.com/bytecodealliance/wasmtime/pull/5976)
[#5977](https://github.com/bytecodealliance/wasmtime/pull/5977)
[#5987](https://github.com/bytecodealliance/wasmtime/pull/5987)
[#5997](https://github.com/bytecodealliance/wasmtime/pull/5997)
[#6078](https://github.com/bytecodealliance/wasmtime/pull/6078)

* Fixed suboptimal code generation in the `riscv64` backend.
[#5854](https://github.com/bytecodealliance/wasmtime/pull/5854)
[#5857](https://github.com/bytecodealliance/wasmtime/pull/5857)
[#5919](https://github.com/bytecodealliance/wasmtime/pull/5919)
[#5951](https://github.com/bytecodealliance/wasmtime/pull/5951)
[#5964](https://github.com/bytecodealliance/wasmtime/pull/5964)
[#6087](https://github.com/bytecodealliance/wasmtime/pull/6087)


--------------------------------------------------------------------------------

## 7.0.0
Expand Down Expand Up @@ -66,6 +145,12 @@ Released 2023-03-20
instructions has been fixed.
[#5871](https://github.com/bytecodealliance/wasmtime/pull/5871)

* Guest-controlled out-of-bounds read/write on x86\_64
[GHSA-ff4p-7xrq-q5r8](https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-ff4p-7xrq-q5r8)

* Miscompilation of `i8x16.select` with the same inputs on x86\_64
[GHSA-xm67-587q-r2vw](https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xm67-587q-r2vw)

--------------------------------------------------------------------------------

## 6.0.1
Expand Down