For issues relating to using jQuery, version 1.8
jQuery 1.8 was relesed on August 9th, 2012.
Key features:
- Sizzle re-architected: jQuery’s selector engine is faster than ever
- Animations re-imagined: varius improvments
- Automatic CSS prefixing: selects the correct prefixed css-property for the user's browser
- More flexibility with $(html, props)
- Smaller code size
- Modularity
See also the official homepage and the release notes.