iTunes 7.7.1 is now available for download for both Mac and Windows.
If you have not gotten the 7.7.1 upgrade option:
1. If you’re on a Mac, click on iTunes and then "Check for Updates…"
2. If you’re on Windows, click on Help and then "Check for Updates"
We don’t yet know what the update offers, so as usual we recommend you wait before updating and let others report their findings.