YUI recommends YUI3.
YUI 2 has been deprecated since 2011. This site acts as an archive for files and documentation.
This documentation is no longer maintained.
The Storage Utility provides an abstraction on top of a variety of client-side storage techniques, including HTML 5 storage, Flash Shared Object, and Google Gears.
All YUI 2.x users should review the YUI 2.8.2 security bulletin, which discusses a vulnerability present in YUI 2.4.0-2.8.1.
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