fastgeojson 0.1.3

• Fixed a parallel build race during Rust compilation on some CRAN check platforms by ensuring Rust build artifact cleanup runs only after package linking completes.

fastgeojson 0.1.2

• Fixed _abort symbol warnings on macOS and Linux by implementing proper Rust build artifact cleanup.
• Achieved clean compilation (0 warnings) across Windows, macOS, and Linux.

fastgeojson 0.1.1

• Build Stability: Pinned the compilation environment to Rust 1.75 via rust-toolchain.toml. This ensures strictly reproducible builds and maximizes compatibility with deployment servers like shinyapps.io and Posit Connect.
• Documentation: Added a “Deploying to shinyapps.io” guide to the README.

fastgeojson 0.1.0

• Initial Release: Introduced fastgeojson, a high-performance JSON and GeoJSON serializer backed by Rust.
• Core Functions:
  • Added sf_geojson_str(): Converts sf objects to GeoJSON FeatureCollections.
  • Added df_json_str(): Converts data frames to JSON arrays of objects.
• Performance: Implemented multi-threaded processing using the Rust rayon crate for massive datasets.
• Integration: Output strings are assigned the json and geojson classes to enable zero-copy transfer in Shiny and Plumber applications.