impit-node@0.9.0

Changelog

All notable changes to this project will be documented in this file.

js-0.9.0 - 2026-01-29

Bug Fixes

• Prevent double free on Buffer by passing a BufferSlice (#369)

  • As a non-async function, decode_buffer doesn't require owning the Buffer and can do with only a BufferSlice. This takes the cleanup responsibility from napi-rs and should prevent the double free scenarios, as the Buffer is now Node runtime-managed.

• Use the rustls Verifier / CryptoProvider cache with custom fingerprints (#371)

  • Speeds up repeated client instantiation and lowers the memory footprint if the custom fingerprints are used. Related to #370

• Call adjust_external_memory on Impit instantiation (#372)

  • Large wrapped objects should adjust_external_memory to guide the native GC scheduler (docs). The size of 500kB is eyeballed (experiments show values around ~120kB), so this should give us enough leeway for the future.

Features

• Use rustls-platform-verifier for system CA support (#357)

  • Replaces the static webpki-roots dependency with rustls-platform-verifier to enable impit to rely on the operating system's trust store. ---------

• Custom fingerprint support (#366)

  • Extracts all fingerprinting logic (from e.g. the rustls patch) to impit. Prepares the codebase for new, non-hardcoded browser fingerprints. Related to #99

• Add more Chrome and Firefox fingerprints (#367)

  • Adds more browser fingerprints and passes these to the Node.JS and Python bindings.