Prepare Wasmi v0.50.0 release (#1627)

* bump Wasmi crate versions

* add changelog for Wasmi v0.50.0

* update comment about Wasmi v0.49.0 release

Author: Robbepop

CHANGELOG.md

@@ -8,6 +8,48 @@ Additionally we have an `Internal` section for changes that are of interest to d
 
 Dates in this file are formattes as `YYYY-MM-DD`.
 
+## `0.50.0` - 2025-08-11
+
+This is supposedly the final release before Wasmi 1.0.0.
+
+### Added
+
+- This version ships with an entirely new Wasm bytecode to Wasmi bytecode translator.
+  - The new translator is ~5-10% faster than the old one.
+  - Fuel-metering is no longer an afterthought and thus comes nearly for free.
+  - The new codebase is much simpler to maintain and reason about.
+  - Wasmi bytecode generated by the new translator shows similar performance as the old one.
+  - The new translator provides a lot more information to Wasmi's optimizer
+    which allows for new optimizations in upcoming Wasmi releases.
+  - PRs: [#1512] [#1618]
+- Add lowerings for xor instructions when used in comparisons.
+  - This reduced the number of Wasmi bytecode instructions by a whopping 20
+    which might have positive effects on execution performance due to decreased cache
+    pressure.
+  - PRs: [#1625]
+
+### Changed
+
+- Removed Wasmi bytecode instructions that are no longer generated by the new translator.
+  - This also reduces the number of Wasmi bytecode instructions by 8 which
+    might have positive effects on execution performance due to decreased cache
+    pressure.
+  - PRs: [#1623] [#1624]
+
+### Internal
+
+- Remove some Wasmi dependencies.
+  - Namely, `smallvec`, `multi-stash` and `arrayvec`.
+  - PRs: [#1620] [#1626]
+
+[#1512]: https://github.com/wasmi-labs/wasmi/pull/1512
+[#1618]: https://github.com/wasmi-labs/wasmi/pull/1618
+[#1620]: https://github.com/wasmi-labs/wasmi/pull/1620
+[#1626]: https://github.com/wasmi-labs/wasmi/pull/1626
+[#1625]: https://github.com/wasmi-labs/wasmi/pull/1625
+[#1623]: https://github.com/wasmi-labs/wasmi/pull/1623
+[#1624]: https://github.com/wasmi-labs/wasmi/pull/1624
+
 ## `0.49.1` - 2025-08-10
 
 ### Fixes
@@ -18,7 +60,7 @@ Dates in this file are formattes as `YYYY-MM-DD`.
 
 ## `0.49.0` - 2025-08-07
 
-This version prepares Wasmi for its 1.0 release.
+The deprecations introduced in this version prepares Wasmi for its 1.0 release.
 
 ### Changed
 

Cargo.lock

@@ -18,7 +18,7 @@ resolver = "2"
 [workspace.package]
 authors = ["Robin Freyler <[email protected]>"]
 repository = "https://github.com/wasmi-labs/wasmi"
-version = "0.49.1"
+version = "0.50.0"
 rust-version = "1.86"
 edition = "2021"
 readme = "README.md"
@@ -30,15 +30,15 @@ exclude = ["tests"]
 [workspace.dependencies]
 
 # Wasmi crates
-wasmi = { version = "0.49.1", path = "crates/wasmi", default-features = false }
-wasmi_wasi = { version = "0.49.1", path = "crates/wasi", default-features = false }
-wasmi_core = { version = "0.49.1", path = "crates/core", default-features = false }
-wasmi_ir = { version = "0.49.1", path = "crates/ir", default-features = false }
-wasmi_collections = { version = "0.49.1", path = "crates/collections", default-features = false }
-wasmi_c_api_impl = { version = "0.49.1", path = "crates/c_api" }
-wasmi_c_api_macros = { version = "0.49.1", path = "crates/c_api/macro" }
-wasmi_fuzz = { version = "0.49.1", path = "crates/fuzz" }
-wasmi_wast = { version = "0.49.1", path = "crates/wast" }
+wasmi = { version = "0.50.0", path = "crates/wasmi", default-features = false }
+wasmi_wasi = { version = "0.50.0", path = "crates/wasi", default-features = false }
+wasmi_core = { version = "0.50.0", path = "crates/core", default-features = false }
+wasmi_ir = { version = "0.50.0", path = "crates/ir", default-features = false }
+wasmi_collections = { version = "0.50.0", path = "crates/collections", default-features = false }
+wasmi_c_api_impl = { version = "0.50.0", path = "crates/c_api" }
+wasmi_c_api_macros = { version = "0.50.0", path = "crates/c_api/macro" }
+wasmi_fuzz = { version = "0.50.0", path = "crates/fuzz" }
+wasmi_wast = { version = "0.50.0", path = "crates/wast" }
 
 # wasm-tools dependencies
 wat = { version = "1.228.0", default-features = false }