COIN-OR Foundation

Thanks to everyone who joined our COIN-OR AGM today.

CyLP has a new release that supports Numpy 2 for those who were waiting for that! As always, there are binary wheels for all platforms, thanks to #cibuildwheel! github.com/coin-or/CyLP/d…

Super happy to announce @nvidia 's cuOPT as an official @coin_or project: coin-or.org/2025/06/11/ann…

Excited to announce COIN-OR's collaboration with NVIDIA in open-sourcing cuOpt! coin-or.org/2025/03/18/the… blogs.nvidia.com/blog/cuopt-ope…

We are pleased to announce the winners of the 2023 COIN-OR Cup. Congratulations to Sungho Shin, François Pacaud, and Mihai Anitescu, developers of the codes ExaModels (github.com/sshin23/ExaMod…) and MadNLP (github.com/MadNLP/MadNLP.…). See coin-or.org/2023/12/06/202….

I'm really excited to announce version 1.2.0 of MibS, our solver for bilevel mixed integer linear optimization. There are a lot of of improvements, especially to usability and out-of-the-box performance. github.com/coin-or/MibS/r….

Thanks everyone for a productive COIN-OR AGM. #orms

Join us now for the COIN-OR AGM... clemson.zoom.us/meeting/regist…

Congratulations to the OMLT team, winners of the 2022 COIN-OR Cup! Celebrate Monday evening after business meetings and receptions at High Velocity in DW Marriott. #INFORMS2022

#INFORMS2022 Join us today for a panel discussion on future directions for COIN-OR. SC70, 12:30-1:45, Marriott Indiana G. How can we best continue to support the open-source OR software community?

Thinkinh about how to fix science's code problem. What @coin_or has been thinking about for 20+ years regarding code in #orms. It's a difficult challenge. facebook.com/110000927/post…

Thanks to the help of @mkoeppe_math, CyLP now has a much improved build process, plus a Github Action that builds binary wheels bundling required libraries for all platforms using the amazing cibuildwheels 🚀. No need to separately install Cbc! github.com/coin-or/CyLP/r…

Github now supports organization-wide Discussions! This supplants the few remaining mailing lists we had: the venerable coin-discuss and coin-announce, which served us well for 20+ years but have been showing their age. On to greener pastures! github.com/orgs/coin-or/d…

#DataScience #optimization #orms #INFORMS @ICS_Informs @INFORMS

We have an open position to join the COIN-OR Strategic Leadership Board as secretary. This is a great chance to build your connections with the shakers and movers in the OR/Analytics world. Contact us at secretary@coin-or.org to become part of our board.

I'm ending the year by trying to finally push out some of the refactoring I've been doing on Cbc! Comments (and contributions) welcome! github.com/coin-or/Cbc/di…

Discuss on Github: github.com/coin-or/COIN-O…

Discuss on HN: news.ycombinator.com/item?id=295738…

Please read this important blog post about the future of COIN-OR! coin-or.org/2021/12/15/fut…

Future of COIN-OR open source math optimization software @slashdot slashdot.org/submission/151…