Changelog

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All notable changes to Rover are documented here. The format follows Keep a Changelog, and the project aims to adhere to Semantic Versioning against Rover's own Elixir API (not Servo's).

The ## [Unreleased] section is rolled into a dated, versioned heading by scripts/release.exs (just release) when a release is cut.

[Unreleased]

0.1.0 - 2026-08-23

Initial release. Drive the Servo web engine from Elixir — one OS process per browser, with per-instance proxy config, cookies, JS evaluation, and input automation.

Added

  • Rover.fetch/2 (one-shot) and Rover.start_link/1 (long-lived, supervisable) browser instances, each backed by a dedicated rover_runtime OS subprocess spoken to over length-prefixed MessagePack (Port, packet: 4).
  • Navigation, rendered content, title; wait_for/3 polling for JS-rendered nodes.
  • JavaScript evaluation (evaluate/2) round-tripping strings, numbers, arrays, and maps.
  • Text/attribute extraction (get_text, get_texts, get_attribute).
  • Real input automation: click, fill, hover, select_option dispatching genuine DOM events.
  • PNG/JPEG screenshots (screenshot/2).
  • Cookie management via Servo's SiteDataManager (get_cookies, set_cookie, clear_*).
  • Per-instance proxy routing — the point of Rover.
  • Precompiled rover_runtime binaries: a :rover_download Mix compiler fetches the prebuilt binary for the host target from the GitHub release at mix compile and verifies it against checksum-rover_runtime.exs, so consumers install without a Rust toolchain or a Servo build. Set ROVER_BUILD=1 to skip the download and use a local cargo build instead.
  • End-to-end integration coverage proving two concurrent browsers preserve independent proxy routing.

Fixed

  • Graceful browser shutdown now waits for rover_runtime to acknowledge and exit before closing its Port, avoiding false Broken pipe errors. Default runtime logging also suppresses Servo's expected memory-profiler teardown warnings.