R Dev Days
R Dev Days are short events - usually over one day, or linked sessions over consecutive days - for novice and experienced contributors to work collaboratively on contributions to base R. These events have the support of the R Core Team and some will have R Core Developers participating directly.
Upcoming events
These are the planned events for 2026 - events that are tentative are shown in italics.
Links to the registration/application page and the corresponding deadline will be added as soon as these details are available.
Satellite events
| Satellite to | Where | Date | Deadline |
|---|---|---|---|
| Rencontres R (16-18 June) | Nantes, France | Fri 19 June | Fri 29 May |
| useR! 2026 (6-9 July) | Warsaw, Poland | Fri 10 July | |
| R Project Sprint 2026 | Birmingham, UK | 2-4 September |
What happens at an R Dev Day?
Tasks are prepared in the run-up to the event, but commonly include:
- Reviewing, analysing and fixing code or documentation bugs reported on R’s Bugzilla.
- Contributing to message translations via Weblate.
Tasks may also relate to contributor infrastructure, such as the R Dev Guide and the R Dev Container.
Who can take part?
Some events have open registration, whilst others have an application process to ensure a balance of experience levels over limited places.
R Dev Days are usually run as satellite events to a conference, with registration/application open to people outside the conference.
The main criteria for participation is a good knowledge of R programming and a keen interest in contributing, as we hope participants continue to contribute after the event.
How much does it cost?
R Dev Days are free to attend and we are usually able to provide lunch and refreshments to particpants. We will advertise when additional support is available (e.g. through scholarships to the associated conference).
Each event will have a ticket site or web page with more information - see the Upcoming events section or the R Contributor Events Page.
Past R Dev Days
2025
RencontresR 2025 (report)
useR 2025 (report)
RSECon25 (report)
SIP2025 (report)
Australia 2025 (Melbourne / Perth / Brisbane / Virtual)
New Zealand 2025 (Auckland / Virtual
2024
Imperial 2024 (satellite to London satRday) (report)
PLUS 2024 (satellite to useR! 2024) (report)
Hutch 2024 (satllite to posit::conf(2024)) (report)
SIP 2024 (report)
RSECon 2024 (report)
LatinR 2024 (virtual) (report)