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Programming Blog Posts#

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!

Davis Vaughan, Lionel Henry

Jun 11, 2025

Programming

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Three ways errors are about to get better in tidymodels

Three ways errors are about to get better in tidymodels

The tidymodels team's biannual spring cleaning gave us a chance to revisit the way we raise some error messages

Simon Couch

Nov 10, 2023

Programming Tidymodels Package Maintenance Tune Parsnip

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Writing performant code with tidy tools

When performance becomes an issue for code using tidy interfaces, switching to the backend tools used by tidy developers can offer substantial speedups

Simon Couch

Apr 18, 2023

Programming Package Vctrs

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New CRAN requirements for packages with C and C++

New CRAN requirements for packages with C and C++

A few recent changes in CRAN requirements for packages containing C or C++ code have caused package developers some headaches. This post outlines the issues and provides solutions the tidyverse team has used to address them

GitHub Actions for R developers, v2

We have updated our GitHub Actions at `r-lib/actions`. Consider upgrading to the new `v2` version, for faster and more reliable GHA jobs

Gábor Csárdi

Jun 1, 2022

Programming GitHub Actions

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waldo 0.3.0

waldo 0.3.0 improves the display of data frame differences, and gives the objects being compared the ability to control the detail of their comparisons

Hadley Wickham

Aug 24, 2021

Package Programming Testthat Waldo

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Off-label uses in ggplot2

How can ggplot2 break with no breaking changes? This short post goes into detail with how and why the latest ggplot2 release disrupted some users workflow

Thomas Lin Pedersen

Jun 24, 2021

Programming Ggplot2 Off-Label

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Self-cleaning test fixtures

A wild romp through environments -- namely, the environments associated with functions and tests. How to adopt a low-impact lifestyle

Jenny Bryan

Apr 27, 2020

Programming Learn R-Lib

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tibble 3.0.0

tibble 3.0.0 is on CRAN now! Tibbles are a modern reimagining of the data frame, keeping what time has shown to be effective, and throwing out what is not, with nicer default output too! This article describes the latest major release and provides an outlook on further developments

Multi Process Task Queue in 100 Lines of R Code

We use `callr::r_session` to implement a worker pool and task queue in 100 lines of R code

Gábor Csárdi

Sep 9, 2019

Programming Deep-Dive Callr R-Lib

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It depends - A dialog about dependencies

Jim Hester

May 29, 2019

Programming Itdepends R-Lib

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Resource Cleanup in C and the R API

How to avoid resource leaks in C code in R packages? Introducing the cleancall package

Gábor Csárdi, Lionel Henry

May 22, 2019

Package Programming Cleancall R-Lib

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Project-oriented workflow

Advice on workflows for developing R scripts. How to think about whether an action belongs in the script or elsewhere

Contributing code to the tidyverse

Contributing code to open source projects can be intimidating. These projects are often widely used and have well known maintainers. Contributing code and having it accepted seems an almost insurmountable task. However if you follow a few simple strategies you can have your code accepted into even the most popular projects in the tidyverse

Jim Hester

Aug 14, 2017

Programming