extendr v0.9.0

Getting started

  • Introduction
  • Installation
  • Example

API Reference

  • extendr
  • rextendr

Community

  • Blog
  • Awesome Extendr
  • Discord
  • GitHub

Development

  • Overview
  • R to Rust type mapping
  • Using Rust types in R
  • Using HashMaps
  • Rust Structs to Lists
  • Default function arguments
  • Project Structure
  • `serde` integration
  • Building for WebR
  • Async with Tokio

Publishing

  • Overview
  • Publish to CRAN
  • CRAN MSRV

Rust Tutorials

  • Overview
  • Hello, World!
  • Basic Types
  • Control Flow
  • Collections
  • Loops
  • Mutability
  • Functions
  • Ownership
  • Iterators
  • Structures
  • Implementations
  • Enumerations

Contributing

  • Overview
  • Writing Code
  • Documenting Code
  • Testing Code
  • extendr Internals
  • rextendr Internals
  • Colors and Fonts
  • User Guide Pages

extendr Blog

News and tips from the extendr community.

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extendr v0.9.0

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This is (hopefully) our last minor release before extendr v1.0.0, focused almost entirely on improved developer experience.

release
Josiah Parry, Blake Vernon Apr 19, 2026

arrow-extendr: 🏹 Polars support 🐻‍❄️

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The latest release of arrow-extendr adds support for Polars, making it straightforward to move data between R and Polars DataFrames via the Arrow C Stream interface.

arrow-extendr arrow release polars
Josiah Parry Mar 25, 2026

h3o is now on CRAN‼️

Read

R users now have access to a pure Rust implementation of Uber's H3, a hexagonal geospatial grid and indexing system.

Release
Blake Vernon, Josiah Parry Sep 9, 2025

rextendr 0.4

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A new version of rextendr has arrived.

Release Updates
Blake Vernon Aug 26, 2025

Migration guide for extendr 0.7.0

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A new version of extendr has arrived, so we explain how to address major changes.

Release Updates
Josiah Parry Jun 30, 2024

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