How does check.torproject.org determine whether TBB is uptodate?
If check.torproject.org can determine what Tor version is installed, so can any other website. This is a fingerprinting risk.
I set up a transparent proxy and https://trac.torproject.org/projects/tor/wiki/doc/TorBOX#TorBrowserTB The website check tells me there's an update available. But I'm using the latest version of Tor and TBB. This is a bug.