Sinan is writing on the Qt Labs blog that Qt 4.8.0 is released. I won’t duplicate the entire contents of his post, so I’ll just give you the information you’re looking for: the download link.
You can download it from the Download Page:
- Qt for Windows (binaries): MinGW, VS 2008, or VS 2010
- Qt for Mac OS X (binary)
- Source: .tar.gz or .zip