From jQuery JavaScript Library

January 21, 2009: This is a bug fix release for jQuery 1.3. You can view the full list of what was fixed on the bug tracker.

There are no significant changes in 1.3.1 from 1.3 other than straight bug fixes.

Downloading

jQuery 1.3.1:

• jQuery Minified (18kb with Gzipping)
• jQuery Regular (114kb)

If you wish to checkout the full release from the Subversion repository, you can do so by following the following instructions and checking out the source from the following location:

 svn co http://jqueryjs.googlecode.com/svn/tags/1.3.1