Quietly getting on with some releases over the long weekend. secretbase 1.2.2 and nanonext 1.9.0. The changes at nanonext if you're curious: nanonext.r-lib.org/news/index.h... All in advance of some pretty nice things coming in the next release of mirai. Stay tuned! #RStats #Tidyverse

Just released mori 0.1.0 on CRAN — a new R package for shared memory across processes. Parallel R no longer has to mean duplicating your dataset in every worker's RAM. opensource.posit.co/blog/2026-04... 🧵 1/3

I am excited beyond description to lift the veil on what we have been working on in 2026: Please meet ggsql! A new extension of the SQL language for creating visualisations using the grammar of graphics. Read all about it in the blog post or visit the website at ggsql.org

#TokyoR 120 はじまりました。

Quarto 2 is coming, and it’s a total rewrite in Rust. 🦀 The headline feature? Native collaborative editing. Don't choose between Google Docs ease and Git rigor! You get real-time, conflict-free collab directly in your .qmd files. #RStats #Python Coming soon! ✨ opensource.posit.co/blog/2026-04...

I've spent years dodging the concept of asynchronous programming. It felt too big. I'm super excited to have Charlie with us at the #DSLab to help us understand it on a basic level!

We're thrilled to be joined by @shikokuchuo.net tomorrow on the DS Lab to learn about asynchronous programming (and parallel programming, which it turns out is different!). Charlie is the author of mirai, which enables them in #RStats tools like Shiny and purrr ✨ See you there! pos.it/dslab

new release of 🌳tarborist, the Positron pipeline helper for {targets}! v0.8.0 brings option runtime/size heat maps for targets: it will now tell you how large or how long (user-selectable) each target is in the pipeline! I've also added the size and runtime information to the hover. #RStats

4/18（土）開催の第120回 #TokyoR の参加受付を開始しました！ 今回は初心者セッション特集ということで、Rを勉強するにあたり必要なトピックを集めました これからデータ分析を勉強する皆さん、初学者に教える皆さん、ご参加お待ちしております！！！ LTはレベル感問わずで、引き続き募集中です！こちらもお待ちしています！ connpass.com/event/390281

Collaborative writing in Quarto! I can maybe finally say goodbye to Overleaf!

The posit::conf(2026) program is live and we are so proud of what this community has submitted. Browse the full lineup: conf.posit.co/2026/sessions Super Early Bird pricing ends April 10. Register before the rate goes up: pos.it/conf

nanonext 1.8.2 is on CRAN 📦 Refines the streaming interface - receive buffer sizing now lives on the stream itself. A small but intentional change for a cleaner API. New infrastructure landing soon to power the next generation of mirai ⚡

Posit is hiring 4 summer interns! Work on PyData tools, tidymodels, Shiny accessibility, or Posit Connect. 10-12 weeks starting May 26. Learn more: tidyverse.org/blog/2026/03... #PyData #Python #RStats

I built a CLI tool for analyzing dbt project lineage, with reference to best practices for building AI agent-friendly CLIs. dlin parses SQL directly, so no manifest.json, dbt compile, or Python is required. Written in Rust, single binary. Outputs JSON, Mermaid, DOT and more. github.com/eitsupi/dlin

It’s difficult to come by joy these days, this puts a smile on my face.

Local-First Conf 2026 is back, and I want to hear what everyone's been doing this year. What have you built? What have you learned? How about interesting challenges we need to overcome?

The March edition of posit::glimpse() is here! 🚀 Key updates include Posit AI, a new assistant in RStudio, Pointblank for synthetic data for #Python, mirai v2.6.0: 50% faster async #RStats ⚡, Positron's PDF viewer + Jupyter support, and more. Read the full roundup: posit.co/blog/glimpse...

New: mirai skill for AI coding agents 🤖 Use with Claude Code/Codex/Cursor for writing async/parallel R code. Covers explicit dependency passing, daemon setup, mirai_map, Shiny integration ++ Install: npx skills add posit-dev/skills --skill mirai github.com/shikokuchuo/mirai/tree/main/dev/skills

RStudio now has next edit suggestions! I wrote a bit about how they work and have open-sourced the eval we used to engineer the system's prompt: www.simonpcouch.com/blog/2026-03...

If you are interested in PDF accessibility, there has been some big progress in Quarto. Take a look at the latest blog post: quarto.org/docs/blog/po... #Quarto #Accessibility #LaTeX #Typst

I presented at Shiny in Production 2025, an incredible conference hosted by @jumpingrivers.com up in Newcastle! I was glad to share the very latest from the Shiny team directly. The topics were bleeding edge at the time, so still new and relevant now. My video: www.youtube.com/watch?v=vxai...

mirai 2.6.1 is now on CRAN Launching daemons on Posit Workbench wasn't working for you with mirai 2.6.0? We've fixed it! `http_config()` now authenticates correctly for all Workbench installation types. Scale seamlessly from laptop to enterprise with mirai. mirai.r-lib.org #Rstats #Tidyverse

HTTP streaming and Server-Sent Events in R with nanonext. Here's an example: gist.github.com/jrosell/178e...

Announcing mirai 2.6.0! This framework for parallel & async computing in #RStats just got a major upgrade: HTTP Launcher (incl to Posit Workbench!), C-Level Dispatcher, process results as they finish, and synchronous mode . Learn more: tidyverse.org/blog/2026/02...

mirai 2.6.0 is on CRAN — R's async framework now deploys from your laptop to Posit Workbench with a single call. New HTTP launcher, C-level dispatcher with near-zero overhead, `race_mirai()` for process-as-completed patterns, and sync mode for debugging. tidyverse.org/blog/2026/02/mirai-2-6-0/

nanonext 1.8.0 is out - R now has a streaming HTTP/WebSocket server with bundled TLS. Runs alongside Shiny in the same process. We're already using it at Posit to explore new real-time capabilities. #Rstats #tidyverse tidyverse.org/blog/2026/02/nanonext-1-8-0/

New post: the design behind secretbase, a 40KB streaming hash package I maintain. The entire source package is smaller than most hex sticker PNGs. Hash large objects with constant memory. Powers targets pipelines. Plus CBOR encoding comes to R. shikokuchuo.net/posts/28-int... #RStats #OpenSource

(OpenMP + Fortran) * Mirai levels of scaling!

ragnar 0.3.0 is now on CRAN! 🚀 An R toolkit for RAG from your docs: faster ingestion, better retrieval, Azure OpenAI + Snowflake embeddings, and MCP serving. tidyverse.org/blog/2026/01... #rstats #rag #ai

I merged a PR for mirai today (fixing an esoteric bug), that came with a performance boost that I'd never have thought existed. That means that on my laptop, the default (with dispatcher) round-trip performance now dips into sub-100 microseconds territory!! Get it now: `pak::pak("r-lib/mirai")`

Thanks to claude code, I wrote my first iphone app: apps.apple.com/us/app/time-... It's what I have always wanted for a talk timer (as both a speaker and a chair). It's very minimal, designed to be read from across the room, and make it clear when you're running out of time.

I sent 200 pull requests using Claude Code and wrote about the experience. It's pretty wild! For dplyr releases, we send a PR any time we break an #rstats package. This release advances a lot of deprecated functions, triggering issues in many old packages! blog.davisvaughan.com/posts/2026-0...

I released {secretbase} 1.1.0 today. github.com/shikokuchuo/... Adds optimized base58check and CBOR encoding. This is a zero-dep #rstats package that wraps C code for hashing and binary/text encoding often needed in web development contexts. It also handles the file/object hashing for {targets}.

I demonstrated OpenTelemetry at Japan.R 2025 last week as an example of ecosystem-wide innovation we're driving at Posit for #rstats. Now thanks to @schloerke.com we have it in a release version of Shiny. This was also a technology that other community speakers picked as one to watch in 2026!

I'm honoured and delighted to be delivering the keynote for Japan.R 2025 in Tokyo on Dec 6. New ideas on creativity and community in open source software. Live demonstrations of ggbot2, OpenTelemetry and mirai (Posit ecosystem-wide initiatives). #Rstats #Tidyverse japanr.connpass.com/event/374714/

Everyone can now view my posit::conf 2025 talk "purrrfectly parallel, purrrfectly distributed"! {purrr} now lets you access the magic of {mirai} directly, as the modern way to make things faster through parallel computation in #rstats. youtu.be/j1yHjMvbnQM?...

Much thanks to @lionelhenry.bsky.social and @cirw.in for pushing the rust bindings for Jupyter further and making @posit.co's Ark runtime work in @zed.dev! github.com/zed-industri...

To be effective, data science agents need to be able to read plots reliably. @sara-altman.bsky.social and I wrote about some concerning findings on LLMs' ability to interpret plots when the content contradicts their expectations on the @posit.co blog. posit.co/blog/introdu...

I put out a patch release of mirai today. Version 2.5.2 really improves the OpenTelemetry integration so you can more easily see into your async workflows. Other key ecosystem packages will roll out with this enabled - next up: Shiny! mirai.r-lib.org #Rstats

purrr 1.2.0 out now — mostly removing long deprecated functions but a few small performance nad parallel processing improvements. Learn more at www.tidyverse.org/blog/2025/11... #rstats

mcptools 0.2.0 is on CRAN! mcptools implements the Model Context Protocol in #rstats, allowing ellmer users to share context and tools more easily between LLM applications. Read more: github.com/posit-dev/mc...

reticulate v1.44 is on CRAN! Positron integration is now enabled by default. Enjoy R and Python REPL consoles powered by concurrent threads in the same process, zero‑copy R↔Python data transfer, and full Variables Pane support. Full changelog: github.com/rstudio/reti... #rstats #python #pydata

I'm excited to share a new version of the Air formatter for #rstats, with support for tabular formatting! Super useful with `tibble::tribble()` calls or `data.table::fcase()`. It's currently experimental as we're looking to get feedback on the feature, so please let us know what you think.

Gave a talk about orbital last week at Socal RUG, it was delightful as always to spend time with these people. Slides: emilhvitfeldt.github.io/talk-orbital... Recording: www.youtube.com/live/pm-Ve3w...

I'll be keynoting at R/Pharma in a few weeks! The conference is free and virtual; all are welcome to join. My talk "Practical AI for data science" is on November 5th and should be broadly accessible for #rstats users, regardless of industry. :) Learn more & register: rinpharma.com

I recently added a Deepwiki badge to mirai.r-lib.org. Not because I think the current documentation is lacking 😅, but it takes you to an `Ask DeepWiki` prompt with the full mirai source code as context so you can ask questions (and get answers) in *any* language. Any feedback welcome! #rstats

I wrote a paper about "Examining the Interface Design of Tidyverse" 📝 TL;DR to follow in future 😊 arxiv.org/abs/2510.10382

I recently added a Deepwiki badge to mirai.r-lib.org. Not because I think the current documentation is lacking 😅, but it takes you to an `Ask DeepWiki` prompt with the full mirai source code as context so you can ask questions (and get answers) in *any* language. Any feedback welcome! #rstats

Thanks to @paleolimbot.bsky.social's great work, the sedonadb R package is now also available to Windows via R-universe 🎉 I'm excited particularly because I believe sedonadb is the easiest tool for R users to access GeoParquet data. #rstats apache.r-universe.dev/sedonadb

Seriously cool stuff from @shikokuchuo.net on mirai+ellmer+shiny+httr2 with otel for telemetry at Shiny in Production! You can use it to improve the performance of your Shiny apps by getting really granular information about it what's going on! #rstats