Add release notes (#9594)

RELEASES.md

@@ -4,8 +4,114 @@ Unreleased.
 
 ### Added
 
+* Support for the Wasm GC proposal is now complete. A new "null" GC has been
+  also added which does not ever collect garbage.
+  [#9389](https://github.com/bytecodealliance/wasmtime/pull/9389)
+  [#9392](https://github.com/bytecodealliance/wasmtime/pull/9392)
+  [#9401](https://github.com/bytecodealliance/wasmtime/pull/9401)
+  [#9435](https://github.com/bytecodealliance/wasmtime/pull/9435)
+  [#9437](https://github.com/bytecodealliance/wasmtime/pull/9437)
+  [#9438](https://github.com/bytecodealliance/wasmtime/pull/9438)
+  [#9446](https://github.com/bytecodealliance/wasmtime/pull/9446)
+  [#9448](https://github.com/bytecodealliance/wasmtime/pull/9448)
+  [#9454](https://github.com/bytecodealliance/wasmtime/pull/9454)
+  [#9455](https://github.com/bytecodealliance/wasmtime/pull/9455)
+  [#9484](https://github.com/bytecodealliance/wasmtime/pull/9484)
+
+* Unstable WIT APIs now have feature gates configured at link-time and new
+  `-Scli-exit-with-code` / `-Snetwork-error-code` options are available as well.
+  [#9381](https://github.com/bytecodealliance/wasmtime/pull/9381)
+  [#9276](https://github.com/bytecodealliance/wasmtime/pull/9276)
+
+* Initial support for the wide-arithmetic proposal has been implemented.
+  [#9403](https://github.com/bytecodealliance/wasmtime/pull/9403)
+  [#9500](https://github.com/bytecodealliance/wasmtime/pull/9500)
+
+* Guests on s390x now implement the "inline probestacks" for Cranelift to more
+  robustly detect stack overflows.
+  [#9423](https://github.com/bytecodealliance/wasmtime/pull/9423)
+
+* Missing CLI options for the pooling allocator have been filled out.
+  [#9447](https://github.com/bytecodealliance/wasmtime/pull/9447)
+
+* Cranelift now supports 128-bit atomics on x64.
+  [#9459](https://github.com/bytecodealliance/wasmtime/pull/9459)
+
+* A new Cargo feature has been added to the `wasmtime` crate to reexport the
+  `wasmparser` dependency.
+  [#9485](https://github.com/bytecodealliance/wasmtime/pull/9485)
+
+* Support for a new PyTorch backend for wasi-nn has been added.
+  [#9234](https://github.com/bytecodealliance/wasmtime/pull/9234)
+
+* A new `-Cnative-unwind-info` flag has been added to the `wasmtime` CLI.
+  [#9494](https://github.com/bytecodealliance/wasmtime/pull/9494)
+
+* Initial support for illumos has been added.
+  [#9535](https://github.com/bytecodealliance/wasmtime/pull/9535)
+
+* A new `Caller::get_module_export` API has been added.
+  [#9525](https://github.com/bytecodealliance/wasmtime/pull/9525)
+
+* Basic debug logging has been added to the debug info transformatino.
+  [#9526](https://github.com/bytecodealliance/wasmtime/pull/9526)
+
 ### Changed
 
+* The WASI WITs vendored are now updated to 0.2.2.
+  [#9395](https://github.com/bytecodealliance/wasmtime/pull/9395)
+
+* The `wasmtime-wasi-runtime-config` is now named `wasmtime-wasi-config`.
+  [#9404](https://github.com/bytecodealliance/wasmtime/pull/9404)
+
+* Documentation on the implementation status of WebAssembly proposals has been
+  updated.
+  [#9434](https://github.com/bytecodealliance/wasmtime/pull/9434)
+
+* Wasmtime's WASI documentation has been overhauled.
+  [#9471](https://github.com/bytecodealliance/wasmtime/pull/9471)
+
+* The `wasi_config_preopen_dir` in Wasmtime's C API now takes file/directory
+  permissions.
+  [#9477](https://github.com/bytecodealliance/wasmtime/pull/9477)
+
+* Detection of libunwind vs libgcc is now done with weak symbols.
+  [#9479](https://github.com/bytecodealliance/wasmtime/pull/9479)
+
+* Winch has improved detection of unsupported features in a `Config`.
+  [#9490](https://github.com/bytecodealliance/wasmtime/pull/9490)
+
+* Winch now supports fuel-based interruption.
+  [#9472](https://github.com/bytecodealliance/wasmtime/pull/9472)
+
+* Wasmtime's minimum supported Rust version is now 1.80.
+  [#9496](https://github.com/bytecodealliance/wasmtime/pull/9496)
+
+* ISLE no longer supports scheme-style booleans.
+  [#9522](https://github.com/bytecodealliance/wasmtime/pull/9522)
+
+* ISLE now supports block comments.
+  [#9529](https://github.com/bytecodealliance/wasmtime/pull/9529)
+
+* Support for shared memory in the C API has been added.
+  [#9507](https://github.com/bytecodealliance/wasmtime/pull/9507)
+
+* Configuration options for guard size regions have been merged into a single
+  option.
+  [#9528](https://github.com/bytecodealliance/wasmtime/pull/9528)
+
+### Fixed
+
+* Double-registration of debug information for modules in components has been
+  fixed.
+  [#9470](https://github.com/bytecodealliance/wasmtime/pull/9470)
+
+* A panic on AArch64 for vector constants has been fixed.
+  [#9482](https://github.com/bytecodealliance/wasmtime/pull/9482)
+
+* A miscompile with `sdiv` and `INT_MIN / -1` has been fixed on aarch64.
+  [#9541](https://github.com/bytecodealliance/wasmtime/pull/9541)
+
 --------------------------------------------------------------------------------
 
 Release notes for previous releases of Wasmtime can be found on the respective