The YUI team has released new Yahoo! UI library 2.3.1. This release contains a number of enhancements to existing controls:

• DataTable: CSS updates for better support of resizable columns and resolution of selection model issues as a result of eliminating ambiguous ID and index usage
• Rich Text Editor: Additional methods, CSS updates for easier customization, performance enhancements, and bug fixes
• Container: Updates to Z-index handling, ordering of containers rendered to the document's Body element, and bug fixes
• Grids: Improved precision and consistency of margins in nested grids
• Slider: Updates to event handling

More info: YUI blog | Download

Yahoo!, YUI, CSS, JavaScript