Recent major changes to TAIR: updates to the database, website, and <i>Arabidopsis</i> genome

The Arabidopsis Information Resource (TAIR) is the primary knowledgebase for Arabidopsis thaliana, providing curated genetics and genomics data, analysis tools, and community resources that support plant biology research worldwide. Since its establishment in 1999, TAIR has continuously evolved to meet the growing needs of the research community, with data curation drawn from the peer-reviewed literature, integration of community contributions, and development of search, visualization, and analysis tools. In this update, we highlight major advances since 2024, including the complete replatforming of TAIR to a modern, microservices-based architecture with a redesigned user interface, improved search and browsing capabilities, and streamlined bulk retrieval functions. These updates have enhanced scalability, performance, and compliance with emerging web accessibility standards. We also describe the community-driven reannotation of the A. thaliana Col-0 reference genome (TAIR12), which integrates new long-read assemblies, updated structural annotations, and expert manual review and involved contributions by over 100 scientists worldwide. This effort delivers the most complete and accurate reference genome to date, strengthening the foundation for functional and comparative genomics. Sustained by a decade-long user-backed funding model, TAIR continues to provide weekly database updates and quarterly data releases while adapting its subscription framework to ensure equitable access for individuals, institutions, and educators. Looking ahead, we outline plans for incorporating artificial intelligence into curation and user support, with possibilities including AI-assisted literature triage, annotation, and query navigation. Together, these developments reinforce TAIR's role as a cornerstone of plant biology and a model for sustainable, community-driven knowledgebases.