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alexcrichton merged 1 commit into from
Feb 28, 2022
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Add in-progress 0.35.0 release notes #3862

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49 changes: 49 additions & 0 deletions RELEASES.md
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## 0.35.0

Unreleased.

### Changed

* WebAssembly tables of `funcref` values are now lazily initialized which can,
in some cases, greatly speed up instantiation of a module.
[#3733](https://github.com/bytecodealliance/wasmtime/pull/3733)

* The `memfd` feature in 0.34.0, now renamed to `memory-init-cow`, has been
enabled by default. This means that, where applicable, WebAssembly linear
memories are now initialized with copy-on-write mappings. Support from this
has been expanded from Linux-only to include macOS and other Unix systems when
modules are loaded from precompiled `*.cwasm` files on disk.
[#3777](https://github.com/bytecodealliance/wasmtime/pull/3777)
[#3778](https://github.com/bytecodealliance/wasmtime/pull/3778)
[#3787](https://github.com/bytecodealliance/wasmtime/pull/3787)
[#3819](https://github.com/bytecodealliance/wasmtime/pull/3819)
[#3831](https://github.com/bytecodealliance/wasmtime/pull/3831)

* Clarify that SSE 4.2 (and prior) is required for running WebAssembly code with
simd support enabled on x86\_64.
[#3816](https://github.com/bytecodealliance/wasmtime/pull/3816)
[#3817](https://github.com/bytecodealliance/wasmtime/pull/3817)
[#3833](https://github.com/bytecodealliance/wasmtime/pull/3833)
[#3825](https://github.com/bytecodealliance/wasmtime/pull/3825)

* Support for profiling with VTune is now enabled at compile time by default,
but it remains disabled at runtime by default.
[#3821](https://github.com/bytecodealliance/wasmtime/pull/3821)

* The `ModuleLimits` type has been removed from the configuration of the pooling
allocator in favor of configuring the total size of an instance allocation
rather than each individual field.
[#3837](https://github.com/bytecodealliance/wasmtime/pull/3837)

* The native stack size allowed for WebAssembly has been decreased from 1 MiB to
512 KiB on all platforms to better accomodate running wasm on the main thread
on Windows.
[#3861](https://github.com/bytecodealliance/wasmtime/pull/3861)

### Removed

* The incomplete and unmaintained ARM32 backend has been removed from Cranelift.
[#3799](https://github.com/bytecodealliance/wasmtime/pull/3799)

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

## 0.34.1

Released 2022-02-16.
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