The University of California, Santa Cruz (UCSC) Genome Browser offers online access to genomic sequence and annotation data for various organisms, along with tools for visualizing, comparing, and analyzing genomic data. Key features of the browser include gene search, drag-reorder functionality for tracks, support for BAM and BigWig/BigBed file formats, and enhanced display options for wiggle and microarray tracks. New data highlights include seven new genome assemblies, a Neandertal genome data portal, phenotype and disease association data, a human RNA editing track, and a zebrafish Conservation track. The browser also provides updates to existing tracks and continues to add new annotation tracks. Future plans include integrating new features, enhancing variation and medical genomics data, and offering cloud support for mirrors.The University of California, Santa Cruz (UCSC) Genome Browser offers online access to genomic sequence and annotation data for various organisms, along with tools for visualizing, comparing, and analyzing genomic data. Key features of the browser include gene search, drag-reorder functionality for tracks, support for BAM and BigWig/BigBed file formats, and enhanced display options for wiggle and microarray tracks. New data highlights include seven new genome assemblies, a Neandertal genome data portal, phenotype and disease association data, a human RNA editing track, and a zebrafish Conservation track. The browser also provides updates to existing tracks and continues to add new annotation tracks. Future plans include integrating new features, enhancing variation and medical genomics data, and offering cloud support for mirrors.