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Where Questions Become Queries: Meet querychat

Where Questions Become Queries: Meet querychat

querychat is a multilingual drop-in component for Shiny that allows you to chat with your data using natural language queries. No more clicking, no more limited filters, just you and your questions!

Veerle Eeftink - Van Leemput

Jan 22, 2026

querychat Shiny for Python Shiny chatlas ellmer Interactive Apps Shiny

The AI blog has a new home#

The AI blog has moved to the Posit Open Source blog . All past and future AI posts now live here alongside posts from our other open-source projects.

The Education blog has a new home#

The Education blog has moved to the Posit Open Source blog . All past and future Education posts now live here alongside posts from our other open-source projects.

The Great Tables blog has a new home#

The Great Tables blog has moved to the Posit Open Source blog . All past and future Great Tables posts now live here alongside posts from our other open-source projects.

The Plotnine blog has a new home#

The Plotnine blog has moved to the Posit Open Source blog . All past and future Plotnine posts now live here alongside posts from our other open-source projects.

The Pointblank blog has a new home#

The Pointblank blog has moved to the Posit Open Source blog . All past and future Pointblank posts now live here alongside posts from our other open-source projects.

The Positron blog has a new home#

The Positron blog has moved to the Posit Open Source blog . All past and future Positron posts now live here alongside posts from our other open-source projects.

The Quarto blog has a new home#

The Quarto blog has moved to the Posit Open Source blog . All past and future Quarto posts now live here alongside posts from our other open-source projects.

The RStudio blog has a new home#

The RStudio blog has moved to the Posit Open Source blog . All past and future RStudio posts now live here alongside posts from our other open-source projects.

The Shiny blog has a new home#

The Shiny blog has moved to the Posit Open Source blog . All past and future Shiny posts now live here alongside posts from our other open-source projects.

The Tidyverse blog has a new home#

The Tidyverse blog has moved to the Posit Open Source blog . All past and future Tidyverse posts now live here alongside posts from our other open-source projects.

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Chrome Headless Shell in Quarto

Quarto 1.9 replaces Puppeteer Chromium with Chrome Headless Shell — smaller, arm64-ready, and Docker-friendly

Christophe Dervieux

Apr 14, 2026

Quarto Publishing Features Quarto 1.9

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

Quarto Publishing Best Practices Renv GitHub Reproducibility

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

Positron Best Practices

What’s next: Quarto 2

We’ve started working on quarto-dev/q2, a full rewrite of Quarto in Rust

Carlos Scheidegger

Apr 6, 2026

Quarto Publishing Quarto

Screenshot of the JupyterHub launcher showing Positron as an available environment alongside JupyterLab

Positron Server available for academic use via JupyterHub

Academic institutions can now offer Positron directly within their JupyterHub environments with a free license

Isabel Zimmerman

Apr 6, 2026

Positron MLOps and Admin Positron

Shiny for Python 1.6 brings toolbars and OpenTelemetry

Shiny for Python 1.6 brings toolbars and OpenTelemetry

Shiny for Python v1.6.0 is now available on PyPI! This release includes toolbar components for compact UIs and built-in OpenTelemetry support for production observability

Liz Nelson, Barret Schloerke

Apr 2, 2026

Shiny for Python Interactive Apps Shiny Python

A Typst article page showing code and a margin figure rendered with the Marginalia package

Typst Books, Article Layout, and typst-gather

Quarto 1.9 adds Typst book projects, article margin layout via Marginalia, and offline package bundling with typst-gather

Gordon Woodhull

Mar 31, 2026

Quarto Publishing Quarto

tabpfn 0.1.0

A new R package for tabular deep learning models

Max Kuhn

Mar 31, 2026

tidymodels Machine Learning Modeling Deep Learning

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

Positron Best Practices Positron Python

raghilda hex sticker featuring a cartoon Viking girl with a braided red hair and horned helmet, holding an axe, surrounded by scattered documents

RAG with raghilda

An introduction to building retrieval-augmented generation systems with raghilda

Daniel Falbel, Tomasz Kalinowski

Mar 30, 2026

raghilda Artificial Intelligence Packages

Quarto 1.9

Quarto 1.9 adds publishing to Posit Connect Cloud, LLM-friendly website output, major Typst improvements, experimental PDF accessibility standards, and list tables for complex table content

Charlotte Wickham

Mar 24, 2026

Quarto Publishing Quarto

2026 Posit Internships

Posit is sponsoring four summer internship positions in 2026

Max Kuhn, Carson Sievert, Tomasz Kalinowski, Andrew Holz

Mar 20, 2026

Community Internship

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

Positron Best Practices Positron Jupyter

orbital 0.5.0

orbital 0.5.0 is on CRAN! More models and faster execution

Emil Hvitfeldt

Mar 13, 2026

orbital tidymodels MLOps and Admin Tidymodels Orbital

Quarto icon, PDF file icon, accessibility icon, and validation shield

PDF Accessibility and Standards

Quarto 1.9 brings PDF accessibility and standards support, building on new tagging features in LaTeX and Typst

Gordon Woodhull

Mar 5, 2026

Quarto Publishing Quarto

Outgrowing your laptop with R and Positron

R-Ladies Abuja has posted a recording of a recent talk on Positron, and you can find it here!

Julia Silge

Mar 5, 2026

Positron MLOps and Admin Positron Talks

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

tidyverse yaml Best Practices Rlib Packages Programming Tidyverse

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

Charlie Gao

Feb 12, 2026

tidyverse mirai Best Practices Parallelism Rlib Tidyverse Packages

`dplyr::if_else()` and `dplyr::case_when()` are up to 30x faster

dplyr::if_else() and dplyr::case_when() are up to 30x faster

dplyr 1.2.0 comes with much faster and more memory efficient if_else() and case_when() functions!

Davis Vaughan

Feb 10, 2026

tidyverse dplyr Data Wrangling Tidyverse Packages

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

Charlie Gao

Feb 9, 2026

tidyverse nanonext Best Practices Rlib Tidyverse Packages

dplyr 1.2.0

dplyr 1.2.0 fills in some important gaps in dplyr’s API: we’ve added a new complement to filter() focused on dropping rows, and we’ve expanded the case_when() family with three new recoding and replacing functions!

Davis Vaughan

Feb 4, 2026

tidyverse dplyr Data Wrangling Tidyverse Packages

ragnar 0.3.0

The new release of ragnar adds faster ingestion, new embedding providers, improved retrieval, and new integrations for using ragnar stores from tools

Tomasz Kalinowski

Jan 27, 2026

tidyverse ragnar Artificial Intelligence Ai Tidyverse Packages

Where Questions Become Queries: Meet querychat

querychat is a multilingual drop-in component for Shiny that allows you to chat with your data using natural language queries. No more clicking, no more limited filters, just you and your questions!

Veerle Eeftink - Van Leemput

Jan 22, 2026

querychat Shiny for Python Shiny chatlas ellmer Interactive Apps Shiny

plumber2 0.2.0

The next version of plumber2 has hit CRAN. Read all about the new features such as OpenTelemetry (OTEL) support, authentication, new tags, and performance improvements here

Thomas Lin Pedersen

Jan 20, 2026

tidyverse plumber2 Interactive Apps Web Tidyverse Packages

orbital 0.4.0

orbital 0.4.0 is on CRAN! orbital now has post processing support

Emil Hvitfeldt

Jan 12, 2026

tidyverse tidymodels orbital Machine Learning Tidyverse Packages

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

tidyverse yaml Best Practices Python Rust Tidyverse Packages

tidymodels & xgboost

The tidymodels ecosystem is prepared for big xgboost CRAN release

Emil Hvitfeldt

Dec 15, 2025

tidyverse tidymodels Machine Learning Tidyverse

tidypredict 1.0.0

tidypredict 1.0.0 brings faster computations for tree-based models, more efficient tree representations, glmnet model support, and a change in how random forests are handled

Emil Hvitfeldt

Dec 10, 2025

tidyverse tidymodels tidypredict orbital Machine Learning Tidyverse Packages

OpenTelemetry + Shiny for R v1.12

Shiny has added OpenTelemetry support! Now you can pear into your Shiny app’s reactive graph and performance characteristics at scale

Barret Schloerke

Dec 10, 2025

Shiny Interactive Apps Shiny

Shiny talks and workshops at posit::conf(2025)

Shiny Talks from posit::conf(2025)

A curated playlist and overview of all Shiny-focused sessions from posit::conf(2025), along with workshop materials and links

Dec 2, 2025

Shiny Shiny for Python Interactive Apps Shiny

posit::conf(2025) Quarto talks

Videos of talks from posit::conf(2025) are posted, and you can find them all here!

Andrew Holz

Nov 24, 2025

Quarto Publishing Community Quarto Learn Conference Videos

Two New tidymodels Packages

Two new tidymodels packages focus on supervised feature selection

Frances Lin, Max Kuhn

Nov 22, 2025

tidyverse tidymodels Machine Learning Feature-Selection Tidyverse Packages

Tool Calling UI in shinychat

Rich tool calling displays are now available in shinychat!

Garrick Aden-Buie, Carson Sievert, Barret Schloerke

Nov 20, 2025

shinychat Shiny for Python Interactive Apps Shiny

Q3 2025 tidymodels digest

A summary of what has been going on for the tidymodels group in the mid 2025

Emil Hvitfeldt

Nov 18, 2025

tidyverse tidymodels Machine Learning Tidyverse Roundup

ellmer 0.4.0

ellmer 0.4.0 includes important lifecycle updates, new Claude features (caching, file uploads, web tools), OpenAI improvements, and enhancements to error handling, pricing tracking, and security

Hadley Wickham

Nov 18, 2025

tidyverse ellmer Artificial Intelligence Tidyverse Packages

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

Hadley Wickham

Nov 13, 2025

tidyverse testthat devtools Best Practices Tidyverse Packages

Python Open-Source Developer

Posit is hiring a Python open-source developer to create more data analysis tools

Max Kuhn

Nov 12, 2025

Community Modeling Tidyverse

promises v1.5.0

The latest promises release brings hybrid sync/async execution, OpenTelemetry integration for distributed tracing, and significant performance improvements

Barret Schloerke

Nov 7, 2025

promises Interactive Apps Shiny

pkgdown 2.2.0

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

Hadley Wickham

Nov 6, 2025

tidyverse pkgdown Best Practices Tidyverse Packages

tune version 2.0.0

A new version of tune brings significant updates for model tuning and parallel processing

Max Kuhn, Simon Couch, Emil Hvitfeldt, Hannah Frick

Nov 5, 2025

tidyverse tidymodels Machine Learning Postprocessing Parallel Processing Tidyverse Packages

stringr 1.6.0

This release deprecates str_like(ignore_case) and changes the behaviour of str_replace_all() for function replacements. It also introduces str_ilike() for case-insensitive SQL-like pattern matching, three new case conversion functions (str_to_camel(), str_to_snake(), and str_to_kebab()), and preserves names in all relevant functions

Hadley Wickham

Nov 4, 2025

tidyverse stringr Data Wrangling Tidyverse Packages

purrr 1.2.0

This release tightens up the package by removing long-deprecated functions, making map_chr() and predicate functions more type-safe, and requiring a newer version of carrier to make in_parallel() use easier. It also includes performance improvements to every(), some(), and none(), as well as a new getting started vignette

Hadley Wickham

Nov 4, 2025

tidyverse purrr Data Wrangling Tidyverse Packages

Quarto workshop materials @ posit::conf(2025)

posit::conf(2025) Quarto workshop materials

At posit::conf(2025) we hosted two Quarto workshops: Branded Websites, Presentations, Dashboards, and PDFs with Quarto; and Extending Quarto. The materials from both workshops are freely available for anyone to learn from or use in their own teaching

Charlotte Wickham

Oct 27, 2025

Quarto Publishing Community Quarto Learn Workshop

Cartoon dog wizard wearing blue hat with red band holding magic wand creating HTML and CSS code scrolls in starry night scene.

Quarto Wizard 1.0.0: Democratising Quarto Extension Management

Introducing a game-changing extension for VS Code and Positron that transforms Quarto extensions management with an intuitive GUI for extensions and templates

Mickaël CANOUIL, _Ph.D._

Oct 20, 2025

Quarto Positron Publishing Quarto Vscode Extensions Productivity

Quarto 1.8

Quarto 1.8 improves brand support, introduces brand extensions, adds HTML accessibility checks, and gives access to execution context

Charlotte Wickham

Oct 13, 2025

Quarto Publishing Quarto Quarto 1.8 Releases

ggplot2 styling

This post discusses one function in ggplot2: theme(). Find out about the glamour of graphics in this deep-dive article

Teun Van den Brand

Oct 1, 2025

ggplot2 Visualization Tidyverse Packages

plumber2 0.1.0

plumber2, a complete rewrite of plumber, has landed on CRAN, providing a modern, future proof solution for creating web servers in R. Read all about the new features here

Thomas Lin Pedersen

Sep 23, 2025

tidyverse plumber2 Interactive Apps Web Tidyverse Packages

Build Your First LLM App with Shiny for Python or R

In the third and final part of The Shiny Side of LLMs, we’ll bring everything together in a polished Shiny app. From covering async, optimizing conversations, to handling loading and errors smoothly. Both Python and R!

Veerle Eeftink - Van Leemput

Sep 15, 2025

Shiny for Python Shiny chatlas ellmer Interactive Apps Shiny

Shiny at posit::conf(2025)

Find Shiny talks and workshops at posit::conf(2025) in Atlanta

Shiny Team

Sep 12, 2025

Shiny for Python Shiny Interactive Apps Shiny

ggplot2 4.0.0

A new major version of ggplot2 has been released on CRAN. Find out what is new here

Teun Van den Brand

Sep 11, 2025

tidyverse ggplot2 Visualization Tidyverse Packages

Talking to LLMs: From Prompt to Response

In this second part of The Shiny Side of LLMs we get into the fun of actually talking to an LLM. From crafting prompts that get the responses you want, to turning messy outputs into something useful, giving models extra powers with tools, and figuring out what all the chatter really costs

Veerle Eeftink - Van Leemput

Sep 5, 2025

Shiny for Python Shiny chatlas ellmer Interactive Apps Shiny

mirai 2.5.0

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

Charlie Gao

Sep 5, 2025

tidyverse mirai Best Practices Parallelism Tidyverse Packages

nanonext 1.7.0

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

Charlie Gao

Sep 2, 2025

tidyverse nanonext Best Practices Tidyverse Packages

ragnar 0.2

ragnar 0.2 introduces a tidy, transparent toolkit for building Retrieval-Augmented Generation (RAG) pipelines in R

Tomasz Kalinowski

Aug 20, 2025

tidyverse ragnar Artificial Intelligence Ai Tidyverse Packages

mall 0.2.0

The mall 0.2.0 update for R and Python introduces support for external LLM providers like OpenAI and Gemini. This version also features parallel processing for R users, the ability to run NLP on string vectors in Python, and a brand new cheatsheet

Edgar Ruiz

Aug 19, 2025

Artificial Intelligence Machine Learning Ai LLM Polars Natural Language Processing Tabular Data

What LLMs Actually Do (and What They Don’t)

Welcome to The Shiny Side of LLMs: a blog series explaining large language models in plain English, without the fancy and difficult buzzwords. In this first part: what LLMs are, how they work, what they’re good at, and why they don’t magically solve all your problems

Veerle Eeftink - Van Leemput

Jul 31, 2025

Shiny for Python Shiny chatlas ellmer Interactive Apps Shiny

quarto R package v1.5.0: Streamlined Workflows for R Users

The quarto R package 1.5.0 brings powerful new features for passing R values to Quarto metadata, inserting Markdown in HTML tables, working with R scripts, building paths from Quarto projects, and automating Quarto CLI from R

Christophe Dervieux

Jul 28, 2025

Quarto Publishing Quarto Packages Knitr Releases

ellmer 0.3.0

The newest version of ellmer introduces a simpler chat() interface that can works with any provider, a bunch of improvements to tool calling, and a handful of smaller quality of life improvements

Hadley Wickham

Jul 25, 2025

tidyverse ellmer Artificial Intelligence Ai Tidyverse Packages

A slide with a screenshot of a Jupyter notebook with a graph and text, then an arrow pointing to a stack of PDF files each with a graph and text.

From One Notebook to Many Reports: Parameterized reports with the jupyter engine

Learn how to transform a single Jupyter notebook into a parameterized report generator that automatically creates customized outputs for different scenarios

Charlotte Wickham

Jul 24, 2025

Quarto Publishing Quarto Authoring Teaching Jupyter

Tidyverse developer day 2025

Join us in Atlanta for tidyverse developer day on September 19, 2025!

Max Kuhn

Jul 21, 2025

tidyverse Community Tidyverse-Dev-Day Tidyverse

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