NumFOCUS

rOpenSci is excited to introduce the new team of mentors for the rOpenSci Champions Program! This year, they have ten talented individuals from Latin America who bring a unique combination of experience, enthusiasm, and commitment to open science. Some of them have already been…

With contributions from 17 community members, pvlib python released version 0.13.0! This patch included several breaking changes to improve consistency in the PVGIS pvlib.iotools functions, new pvlib.iotools functions for the NSRDB PSM4 dataset, and more. Check out the full…

ITK’s 5.4.4 release is available! This is a maintenance release focused on stability and platform compatibility. Key updates include critical bug fixes for image I/O and improved NumPy interoperability. hubs.la/Q03xVJ-Y0

Optuna has released version 4.4 of the black-box optimization framework Optuna. In addition to feature additions, bug fixes, and improvements in documentation and testing, version 4.4 introduces a new tool called the Optuna MCP Server, their first LLM-intensive toolchain! Check…

PyBaMM 25.6 has been released! MSMR parameters have been renamed, as well as various smaller improvements to the solvers, which overall improve performance and usability. Check it out: hubs.la/Q03xVZRv0

Last month, QuTiP released v5.2, had 2 projects accepted into GSoC 2025, and got a brand new website! Congrats to QuTiP on all the exciting progress they’ve been making! 🥳 Check out the new site here: hubs.la/Q03x6GNP0

The GDAL Project recently celebrated its 3.11 release with a webinar about the newly improved command line interface, whose development was supported by the GDAL Sponsorship Program! You can watch the video at hubs.la/Q03x6BfQ0

After an extensive nationwide search involving the Administrative Board, Technical Steering Committee, and Advisory Council, the NumFOCUS Board of Directors is pleased to announce the appointment of Rachel Kerestes (@rkerestes) as the organization's new Executive Director. Learn…

Welcome to the NumFOCUS family, another brand new affiliated project, marimo! 💚🟢 hubs.la/Q03wWm5P0 marimo is an open-source reactive Python notebook that’s designed specifically for working with data, built entirely from scratch. Run a cell or interact with a UI element,…

Zarr is hiring again! Build scalable bioimaging solutions, collaborate globally, and join the Friedrich Miescher Institute for Biomedical Research as a Computational Scientist or Research Software Engineer hubs.la/Q03wWkCn0

Welcome to the NumFOCUS family, our latest affiliated project, Albumentations! ❤️ hubs.la/Q03wW8_60 Albumentations is a fast and flexible image augmentation library that supports over 70 different transforms for object detection, segmentation and image classification…

Don’t want to join us as we transition to Zulip? No problem. You can opt out here: hubs.la/Q03wJJ6t0

That’s another successful SciPy conference for the books! Thank you to everyone who came, spoke, sponsored, or supported in any way! Sssee you next year! 💙💜🧡💛🐍

astropy, a core Python package for Astronomy, is excited to present its v7.1.0 release! hubs.la/Q03wW5-L0 The astropy core package is a community-driven Python package intended to contain much of the core functionality and common tools needed for astronomy and…

Zulip is open source, thread-based, and easy to use. We're switching to Zulip to support sustainable, transparent tools in 2025. Learn more: hubs.la/Q03wJsJ20

There’s still time to make your impact in our Fuel the Future campaign—but not much. Support the projects that keep science open, tools usable, and research reproducible. Your gift today = smoother dev experiences, stronger communities, and more accessible scientific computing…

NumFOCUS is thrilled to once again be a community partner with the PyBay 2025 conference in San Francisco, Oct. 18! Join us and dozens of other enthusiastic developers in the Bay Area to discuss all things Python at this exciting 10th anniversary event! hubs.la/Q03wnhql0

Time is running out—our Fuel the Future campaign ends soon! We’ve been able to support several improvements to foundational open-source tools this year, thanks to donors like you. These are the changes that keep science moving forward. Let’s keep the momentum going. Donate now…

We’re in the final stretch of our Fuel the Future campaign! Your donation today helps fund the tools that power scientific discovery every day—tools like Spyder, Jupyter, and NumPy. Tools that don’t just work, but make research more reproducible, teaching more accessible, and…