bytecodealliance · alexcrichton · Feb 18, 2026
@@ -4,8 +4,133 @@ Unreleased.
 
 ### Added
 
+* Cranelift now supports bitwise operations on floats on aarch64.
+  [#12326](https://github.com/bytecodealliance/wasmtime/pull/12326)
+
+* Cranelift now supports NaN canonicalization of f16 and f128.
+  [#12337](https://github.com/bytecodealliance/wasmtime/pull/12337)
+
+* Wasmtime has gained minimal support to implement fixed-length lists in the
+  component model being communicated between composed components.
+  [#10619](https://github.com/bytecodealliance/wasmtime/pull/10619)
+
+* Wasmtime's `Error` and `Result` types are now built-in to the `wasmtime` crate
+  and are no longer defined by the `anyhow` crate. Wasmtime exports a
+  mostly-compatible `anyhow`-like API at `wasmtime::error` which is used
+  instead. Wasmtime's own `Error` handles OOM internally and is foundational
+  part of Wasmtime's work-in-progress support to gracefully handle OOM.
+  [#12309](https://github.com/bytecodealliance/wasmtime/pull/12309)
+
+* Wasmtime now exports an extension trait to convert `anyhow::Result<T>` into
+  `wasmtime::Result<T>`.
+  [#12255](https://github.com/bytecodealliance/wasmtime/pull/12255)
+
+* Wasmtime supports a new `bindgen!` option to generate bindings specifically
+  with `anyhow::Result` instead of `wasmtime::Result`.
+  [#12331](https://github.com/bytecodealliance/wasmtime/pull/12331)
+
+* The Nvidia-Cuda execution provider is now supported for the wasi-nn onnx
+  backend.
+  [#12044](https://github.com/bytecodealliance/wasmtime/pull/12044)
+
+* Non-exported and private entities can now be accessed through the debugger
+  API.
+  [#12367](https://github.com/bytecodealliance/wasmtime/pull/12367)
+
+* A new `Store::try_new` API has been added which handles OOM.
+  [#12415](https://github.com/bytecodealliance/wasmtime/pull/12415)
+
+* Initial configuration knobs for record-and-replay support have been added.
+  [#12375](https://github.com/bytecodealliance/wasmtime/pull/12375)
+
+* Cranelift's s390x backend now has support for instructions added in z17.
+  [#12319](https://github.com/bytecodealliance/wasmtime/pull/12319)
+
+* Wasmtime's implementation of fibers can now be compiled on riscv32imac
+  platforms.
+  [#12506](https://github.com/bytecodealliance/wasmtime/pull/12506)
+
 ### Changed
 
+* Reentrance rules for WebAssembly components have changed in accordance with
+  upstream specification changes. Embeddings are not expected to be affected,
+  but please reach out if you find problems.
+  [#12349](https://github.com/bytecodealliance/wasmtime/pull/12349)
+
+* Wasmtime's `Config::async_support` option is now removed and no longer
+  necessary. Embeddings can likely just remove turning this on and everything
+  should keep working like normal.
+  [#12371](https://github.com/bytecodealliance/wasmtime/pull/12371)
+
+* Wasmtime now supports `Config::concurrency_support` as a knob to enable or
+  disable `*_concurrent` APIs at runtime when the `component-model-async` crate
+  feature is enabled.
+  [#12416](https://github.com/bytecodealliance/wasmtime/pull/12416)
+
+* The `post_return`-style functions in Wasmtime's API are now noops and will be
+  removed in the future.
+  [#12498](https://github.com/bytecodealliance/wasmtime/pull/12498)
+
+* Translation of `global.get` of a defined, immutable global is now turned into
+  a CLIF constant.
+  [#12234](https://github.com/bytecodealliance/wasmtime/pull/12234)
+
+* The `wasmtime-wasi-nn` crate's dependency on `ort` has been updated.
+  [#12162](https://github.com/bytecodealliance/wasmtime/pull/12162)
+
+* Error bounds requiring using `hyper::Error` in `wasmtime-wasi-http` have been
+  relaxed to taking `E: Into<ErrorCode>` instead.
+  [#12227](https://github.com/bytecodealliance/wasmtime/pull/12227)
+
+* The `cranelift-assembler-x64`, and `cranelift-isle` crates now supports
+  no\_std targets. The `cranelift-codegen` crate now mostly supports no\_std,
+  but not entirely.
+  [#12222](https://github.com/bytecodealliance/wasmtime/pull/12222)
+  [#12235](https://github.com/bytecodealliance/wasmtime/pull/12235)
+  [#12236](https://github.com/bytecodealliance/wasmtime/pull/12236)
+
+* Android release binaries are now compiled with a larger page size configured.
+  [#12246](https://github.com/bytecodealliance/wasmtime/pull/12246)
+
+* Implicit binds are now allowed for WASIp3 sockets.
+  [#12225](https://github.com/bytecodealliance/wasmtime/pull/12225)
+
+* Wasmtime's implementation of component-model-async now correctly checks for
+  whether tasks are allowed to block in all guest-to-guest situations.
+  [#12282](https://github.com/bytecodealliance/wasmtime/pull/12282)
+
+* The `wasmtime-wasi-tls` crate now has an OpenSSL backend.
+  [#12228](https://github.com/bytecodealliance/wasmtime/pull/12228)
+
+* Wasmtime's `OutOfMemory` error now keeps track of the attempted allocation
+  size that failed.
+  [#12351](https://github.com/bytecodealliance/wasmtime/pull/12351)
+
+* Wasmtime's `*_unchecked` functions now work with `MaybeUninit<ValRaw>` instead
+  of `ValRaw` directly.
+  [#12366](https://github.com/bytecodealliance/wasmtime/pull/12366)
+
+* Wasmtime now requires Rust 1.91.0 to compile.
+  [#12392](https://github.com/bytecodealliance/wasmtime/pull/12392)
+
+* Wasmtime's management of component-model-async tasks is now consistently done
+  in all boundaries between guest/host tasks.
+  [#12379](https://github.com/bytecodealliance/wasmtime/pull/12379)
+
+### Fixed
+
+* The `HeapType::matches` implementation for `NoExn` has been fixed.
+  [#12350](https://github.com/bytecodealliance/wasmtime/pull/12350)
+
+* Enum discriminant validation for composed components has been fixed.
+  [#12356](https://github.com/bytecodealliance/wasmtime/pull/12356)
+
+* Shifts in some situations on aarch64 with Winch have been fixed.
+  [#12501](https://github.com/bytecodealliance/wasmtime/pull/12501)
+
+* Debug value locations around cold blocks have been improved.
+  [#12484](https://github.com/bytecodealliance/wasmtime/pull/12484)
+
 --------------------------------------------------------------------------------
 
 Release notes for previous releases of Wasmtime can be found on the respective