Use manual bindings for WASIp2/3

Author: newpavlov

.github/workflows/tests.yml

@@ -391,11 +391,6 @@ jobs:
           wget -O - $URL | tar -xJ --strip-components=1 -C ~/.cargo/bin
           wasmtime --version
       - uses: Swatinem/rust-cache@v2
-      # TODO(MSRV-1.87): Remove this step.
-      - name: Generate MSRV-compatible Cargo.lock
-        env:
-          CARGO_RESOLVER_INCOMPATIBLE_RUST_VERSIONS: "fallback"
-        run: cargo update -p wasip2
       - run: cargo test --target wasm32-wasip2
 
   # TODO: enable after pre-built std will be provided by Rust 

CHANGELOG.md

@@ -6,10 +6,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Restore MSRV to 1.85 for wasm32-wasip3 targets. [#824]
+### Changed
+- Drop `wasip2` and `wasip3` dependencies in favor of manual bindings [#830]
 
 [Unreleased]: https://github.com/rust-random/getrandom/compare/v0.4.2...master
-[#824]: https://github.com/rust-random/getrandom/pull/824
+[#830]: https://github.com/rust-random/getrandom/pull/830
 
 ## [0.4.2] - 2026-03-03