WordPress.org has announced new release 3.4.2 and is now available for download from your wordpress dashboard. This is a security release for all previous versions.
After release of wordpress v3.4, some bugs were identified and this release fixes it.
- Issues with older versions of browsers in the administration section
- Preview issues
- Plugin compatibility
- Pagination problems
Read http://wordpress.org/news/2012/09/wordpress-3-4-2/ to know more