nusenu:
Yes, both relays on that IP (same ORPort), changed from "Tor 0.2.7.6 on Windows 8" to that non-ASCII string (that is why I knew he is probably running Windows 8).
Can this be undefined behavior of GetVersionEx() on Windows 10? (I'm not able to verify this)
GetVersionEx() has been deprecated since Win8.1 [1]:
With the release of Windows 8.1, the behavior of the GetVersionEx API has changed in the value it will return for the operating system version. The value returned by the GetVersionEx function now depends on how the application is manifested.
And tor still use it [2] on all Windows versions.
Maybe this version of tor is built from source and manifested for Windows 10 (by auto)? I can't see anything related to 'manifestation' in Tor's build scripts for Windows, so I guess that official binaries are not manifested for Win8.1 or Win10 and detect Win10 as 6.2 (Win8).
[1] https://msdn.microsoft.com/en-us/library/windows/desktop/ms724451%28v=vs.85%...
[2] https://gitweb.torproject.org/tor.git/tree/src/common/compat.c#n2711
-- Ivan Markin