The Arabidopsis Information Resource (TAIR) is a comprehensive genome database for *Arabidopsis thaliana*, serving as a central access point for genetic and genomic data. TAIR provides gene function and expression annotations using controlled vocabulary terms, maintains and updates the *A. thaliana* genome assembly and annotation, and offers a range of visualization and analysis tools. Recent developments include new genome releases (TAIR8, TAIR9, TAIR10), which have updated the *A. thaliana* assembly, re-annotated pseudogenes and transposon genes, and incorporated new data from proteomics and next-generation transcriptome sequencing. TAIR also includes progress in functional annotation and new tools such as Textpresso for Arabidopsis, which enables full-text searches on a large body of research literature. The resource continues to grow in usage, with over 45,000 unique visitors per month and over 1.8 million visits in the past year. TAIR's data types include genome sequences, gene structure and function annotations, metabolic pathways, gene expression patterns, DNA and seed stock data, genome maps, genetic and physical markers, ecotypes and natural variation data, and publications. TAIR uses manual curation, computational pipelines, and community submissions to integrate data from various sources, ensuring comprehensive and accurate annotations. The resource has made significant improvements in gene function annotation, genome annotation, and the integration of new data types, enhancing its utility for researchers in plant biology and beyond.The Arabidopsis Information Resource (TAIR) is a comprehensive genome database for *Arabidopsis thaliana*, serving as a central access point for genetic and genomic data. TAIR provides gene function and expression annotations using controlled vocabulary terms, maintains and updates the *A. thaliana* genome assembly and annotation, and offers a range of visualization and analysis tools. Recent developments include new genome releases (TAIR8, TAIR9, TAIR10), which have updated the *A. thaliana* assembly, re-annotated pseudogenes and transposon genes, and incorporated new data from proteomics and next-generation transcriptome sequencing. TAIR also includes progress in functional annotation and new tools such as Textpresso for Arabidopsis, which enables full-text searches on a large body of research literature. The resource continues to grow in usage, with over 45,000 unique visitors per month and over 1.8 million visits in the past year. TAIR's data types include genome sequences, gene structure and function annotations, metabolic pathways, gene expression patterns, DNA and seed stock data, genome maps, genetic and physical markers, ecotypes and natural variation data, and publications. TAIR uses manual curation, computational pipelines, and community submissions to integrate data from various sources, ensuring comprehensive and accurate annotations. The resource has made significant improvements in gene function annotation, genome annotation, and the integration of new data types, enhancing its utility for researchers in plant biology and beyond.