The abstract submission portal is now open for contributed talks to CT2026. Participants – both in person and remote – may contribute talks, to be selected by the scientific committee for plenary, parallel, and lightning talk sessions. Abstracts are due on mathprograms.org on January 20th, 2026 by 11:59PM EST. Further instructions, including a LaTeX template for use when preparing abstracts, are available on the conference website: https://ct2026.com/ct/submit/ Questions may be directed to: categorytheory2026@gmail.com Attached to this message are posters advertising CT2026 and its satellite conference DV60, in two slightly different aspect ratios (11" x 17" vs A3 standard). -- As a reminder, the 2026 International Category Theory Conference (CT2026) will be held from July 13 – 18, 2026. Invited one-hour lectures will be given by: Geoff Cruttwell, Mount Allison University Tobias Fritz, University of Innsbruck Michael Hoefnagel, Stellenbosch University Ieke Moerdijk, Utrecht University Susan Niefield, Union College Chelsea Walton, Rice University The conference Discoveries and Vistas: Life, the universe, and higher categories (DV60) celebrates the 60th birthday of Dominic Verity, honoring his significant contributions to category theory and homotopy theory. This conference will be held from July 20 – 22, 2026 and will feature one-hour talks from the following invited speakers: John Bourke, Masaryk University Nick Gurski, Case Western Reserve University Mike Hopkins, Harvard University Steve Lack, Macquarie University Félix Loubaton, Max Planck Institute for Mathematics Yuki Maehara, Tokyo Metropolitan University Valeria de Paiva, Topos Institute Martina Rovelli, University of Ottawa Paula Verdugo, Max Planck Institute for Mathematics Dominic Verity, Australian National University We hope many of you will be able to join us in Baltimore or online. CT2026 Organizers Nick Gurski, Case Western Reserve University Philip Hackney, University of Louisiana at Lafayette Angélica Osorno, Reed College Emily Riehl, Johns Hopkins University Maru Sarazola, University of Minnesota CT2026 Scientific Committee Kristine Bauer (Chair), University of Calgary Zurab Janelidze, Stellenbosch University JS Lemay, Macquarie University Ignacio López Franco, Universidad de la República Noah Snyder, Indiana University Todd Trimble, Western Connecticut State University Christina Vasilakopoulou, National Technical University of Athens Noson Yanofsky, Brooklyn College, CUNY DV60 Organizing and Scientific Committee Yuki Maehara, Tokyo Metropolitan University Emily Riehl, Johns Hopkins University Paula Verdugo, Max Planck Institute for Mathematics Jonathan Weinberger, Chapman University You're receiving this message because you're a member of the Categories mailing list group from Macquarie University. To take part in this conversation, reply all to this message. View group files<https://outlook.office365.com/groups/groupsubscription?source=EscalatedMessage&action=files&smtp=categories%40mq.edu.au&bO=true&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Leave group<https://outlook.office365.com/groups/groupsubscription?source=EscalatedMessage&action=leave&smtp=categories%40mq.edu.au&bO=true&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Learn more about Microsoft 365 Groups<https://aka.ms/o365g>