"Check for updates"

“Check for Updates” should provide a link to let you download (and/or install) whatever updates are available, rather than just tell you one exists.

BTW, I’m running beta 1.7, some users are mentioning a 1.8 and Scrivener tells me there’s a new version, but it’s not available from the download page.

This post gives you a workaround on how to update.