web-sys 0.3.88 Released with Updated Web API Bindings for Rust and Wasm

The web-sys crate reached version 0.3.88 when it was published on February 21, 2026, upgrading the autogenerated Rust bindings that developers use to access Web APIs via wasm-bindgen. This release is now listed in public package indexes and crate registries, making 0.3.88 visible to dependency resolvers and CI pipelines that pull crates from those registries.

web-sys serves as the autogenerated bridge between browser Web APIs and Rust code compiled to WebAssembly, and 0.3.88 sits in the dependency graph for many Wasm-targeted Rust projects. Projects that link against wasm-bindgen and depend on web-sys will see 0.3.88 offered by registries and package indexes as the available package version published on February 21, 2026.

Because web-sys is a core dependency in those Wasm toolchains, teams that maintain web-facing Rust crates should check their lockfiles and manifest files for changes now that 0.3.88 is in registries. Upgrading or pinning to version 0.3.88 will make the new bindings available to builds and integration tests that run against public package indexes and crate registries, and it will ensure reproducible resolution to the release that was published on February 21, 2026.

Registry visibility also matters for downstream crates and CI: continuous integration systems that cache crate indexes will see 0.3.88 appear in their next index update, and dependency monitoring tools that scan public package indexes will report the new 0.3.88 entry. As of February 27, 2026, developers can confirm the 0.3.88 listing in the same public package indexes and crate registries that supply their projects.

Expect projects that depend on web-sys and wasm-bindgen to incorporate 0.3.88 in the coming days as maintainers reconcile compatibility and update lockfiles. The immediate, concrete step for maintainers is clear: verify whether your Wasm-targeted Rust project resolves web-sys to 0.3.88 in your environment and adjust manifests or CI cache policies accordingly so builds reference the package version published on February 21, 2026.