Best Practices

Best Practices Data Wrangling Visualization Tidyverse

rlang

Low-level API for programming with R

570

Best Practices Interactive Apps

Positron

Positron, a next-generation data science IDE

4.1k

Ten Great Things We Added to Great Docs

Great Docs reached its tenth release with v0.10.0. Here we look back at ten features that transformed it from a simple documentation generator into a comprehensive platform for Python package documentation

Rich Iannone

May 13, 2026

Best Practices Publishing

Quarto

Open-source scientific and technical publishing system built on Pandoc

5.3k

mori

Shared Memory for R Objects

Repeated concrete arches of the Falkirk Wheel aqueduct receding in perspective over a still canal channel, with a green canal-traffic signal on the right and distant hills visible through the openings under broken cloud.

A memory model for production async R: mirai 2.7.0 and mori 0.2.0

Two CRAN releases extend R’s foundations for production async: bounded queues and try_mirai() in mirai 2.7.0, plus mori 0.2.0 graduating from experimental status

May 12, 2026

Positron May Release Highlights

Highlights from the 2026.05 release of Positron, including a new Packages pane and inline output for Quarto

Julia Silge

May 11, 2026

testthat

An R to make testing

926

Best Practices Interactive Apps Publishing Visualization

Shiny

Easy interactive web applications with R

5.6k

Best Practices Interactive Apps MLOps and Admin

plumber2

Easy and Powerful Webservers in R

115

Charlie Gao, Aaron Jacobs, Barret Schloerke, Gábor Csárdi

A vivid green and pink aurora arcing across a star-filled night sky over a snow-covered landscape.

Bringing OpenTelemetry to R in production

Posit has instrumented Shiny, plumber2, mirai, httr2, ellmer, knitr, testthat, and DBI with OpenTelemetry, and created tools for you to instrument your own packages, bringing production-grade observability to R

May 7, 2026

Best Practices Interactive Apps MLOps and Admin Visualization

plumber

Turn your R code into a web API

1.4k

Dozens of small, brightly coloured balloons drifting upward against a clear blue sky.

roxygen2 8.0.0

roxygen2 8.0.0 is now on CRAN, with first-class support for S7, a bunch of R6 improvements, a new configuration style, and a slimmer dependency footprint

May 1, 2026

roxygen2

Generate R package documentation from inline R comments

647

Best Practices Data Wrangling Tidyverse

cli

Tools for making beautiful & useful command line interfaces

706

processx 3.9.0

processx 3.9.0 brings kernel-level process pipelines, pseudo-terminal support on Windows, Linux parent-death signals, binary I/O, and several other quality-of-life improvements

Gábor Csárdi

Apr 27, 2026

Macro close-up of a computer RAM module, showing the blue circuit board and metallic connectors in sharp detail with a shallow depth-of-field blur.

mori: Shared memory for R objects

mori is a new R package for sharing R objects across processes via OS-level shared memory. Parallel workers get zero-copy, lazy ALTREP access to the same physical pages — share once, read anywhere

Apr 23, 2026

Best Practices Data Wrangling Visualization

ggsql

A SQL extension for declarative data visualisation based on the Grammar of Graphics

470

Introducing Great Docs: Beautiful Documentation for Python Packages

Great Docs is a new documentation site generator for Python packages. It auto-discovers your API, builds a modern site with Quarto, and ships with LLM-friendly features and one-command deployment

Rich Iannone

Apr 15, 2026

Best Practices Data Wrangling Publishing

pointblank

Data validation toolkit for assessing and monitoring data quality

432

Diagram of a structured reproducible research project layout with folders for data, code, and manuscript

Structuring Reproducible Research Projects in R: A Workflow with renv, Quarto, and GitHub

A practical guide to structuring reproducible academic research projects using Git, renv, Quarto, and GitHub — from data cleaning to manuscript preparation

Dianyi Yang

Apr 13, 2026

April Release Highlights

Welcome to the first Positron newsletter! This month: AI-powered notebook suggestions, Agent Skills, Azure Foundry support, R debugging upgrades, and more

Cindy Tong

Apr 7, 2026

Comparison of Python type checkers: Pyrefly, ty, Basedpyright, and Zuban

How we chose Positron’s Python type checker

We tested four open-source Python type checkers to find the best default for Positron. Here’s how Pyrefly, ty, Basedpyright, and Zuban compare on features, correctness, performance, and development velocity

Austin Dickey

Mar 31, 2026

Best Practices Data Wrangling

air

R formatter and language server

421

renv

renv: Project environments for R

1.1k

Screenshot of the Positron Notebook Editor interface

Native Jupyter Notebook Support Has Arrived in Positron

Positron now includes a native Jupyter Notebook Editor in alpha, built from the ground up for data science workflows. Here’s what is in alpha, why we build a new Notebook editor and what’s coming next

Cindy Tong

Mar 16, 2026

Best Practices Publishing Visualization

Great Tables

Make awesome display tables using Python

2.7k

Artificial Intelligence Best Practices AI

vitals

Large language model evaluation for R

usethis

Set up commonly used components

905

Artificial Intelligence Best Practices Interactive Apps AI

shinychat

Chat UI component for Shiny

131

Best Practices Publishing

rmarkdown

Dynamic Documents for R

Best Practices Publishing

reticulate

R Interface to Python

1.7k

devtools

Tools to make an R developer’s life easier

2.5k

Rapp 0.3.0

Rapp is an R front-end (like Rscript) that turns simple scripts into polished CLIs, with automatic argument parsing, generated help, and support for commands and installable launchers

Tomasz Kalinowski

Feb 18, 2026

mirai 2.6.0

mirai 2.6.0 brings an HTTP launcher for cloud and Posit Workbench, a C-level dispatcher for near-zero overhead task dispatch, and new tools for racing and debugging async tasks

Feb 12, 2026

nanonext 1.8.0

nanonext 1.8.0 adds a low-level streaming HTTP/WebSocket server to R’s web infrastructure, with TLS support, new async primitives, and redesigned documentation

Feb 9, 2026

yaml12: YAML 1.2 for R and Python

We’re pleased to announce two new YAML 1.2 packages: yaml12 for R and py-yaml12 for Python. Both are implemented in Rust and designed for fast, predictable YAML 1.2 parsing, with safe opt-in tag handling and document stream support

Tomasz Kalinowski

Jan 7, 2026

testthat 3.3.0

testthat 3.3.0 brings improved expectations with better error messages, new expectations for common testing patterns, and lifecycle changes including the removal of local_mock() and with_mock(). It also includes a write-up of my experience doing package development with Claude Code

Nov 13, 2025

pkgdown 2.2.0

The latest version of pkgdown automatically builds markdown files that make it easy for LLMs to use your website

Nov 6, 2025

Best Practices Data Wrangling

config

config package for R

263

Best Practices Community Data Wrangling Interactive Apps Machine Learning Visualization

rstudio-conf

Materials for rstudio::conf

749

mirai 2.5.0

mirai - minimalist async evaluation framework for R - brings production-grade parallel and distributed computing to the ecosystem

Sep 5, 2025

nanonext 1.7.0

nanonext is a communications and concurrency toolbox that facilitates fast, powerful and reliable data exchange in polyglot data science workflows

Sep 2, 2025

Best Practices Data Wrangling Machine Learning

code-review

Davis Vaughan, Lionel Henry

Air 0.7.0

Read all about Air 0.7.0, including: even better Positron support, a new feature we call autobracing, and an official GitHub Action!

Jun 11, 2025

Best Practices Visualization

systemfonts

System Native Font Handling in R

Fonts in R

Taking control of fonts and text rendering in R can be challenging. This deep-dive teaches you everything (and then some) you need to know to keep your sanity

Thomas Lin Pedersen

May 12, 2025

Best Practices Data Wrangling

chromote

Chrome Remote Interface for R

178

Best Practices Interactive Apps MLOps and Admin

shinylive

Run Shiny on Python and R (compiled to wasm) in the browser

247

Best Practices Interactive Apps Publishing

bslib

Tools for theming Shiny and R Markdown via Bootstrap 3, 4, or 5

557

Best Practices Interactive Apps Visualization

shinytableau

Extend Tableau dashboards using Shiny

Best Practices Publishing Visualization

marquee

Markdown Parser and Renderer for R Graphics

Tomasz Kalinowski, Hadley Wickham

S7 0.2.0

S7 is a new package that simplifies object-oriented programming (OOP) in R. It combines the simplicity of S3 with the structure of S4 to create a clearer system that’s accessible to everyone

Nov 7, 2024

Best Practices Interactive Apps Machine Learning

shinytest2

121

Best Practices Interactive Apps

Rapp

Build CLI applications in R

137

Best Practices Interactive Apps Publishing Visualization

DT

R Interface to the jQuery Plug-in DataTables

621

Best Practices Interactive Apps Visualization

shinydashboard

Shiny Dashboarding framework

921

Best Practices Interactive Apps Visualization

py-shinyswatch

Bootswatch themes for py-shiny

pkgdown 2.1.0

pkgdown 2.1.0 includes two major new features: support for quarto vignettes and a “light switch” that lets the reader switch between light and dark mode. It also contains a bunch of other improvements to both the user and the developer experience

Jul 8, 2024