Downgrade of Cuda version after upgrade of nVidia driver?

After upgrade of nVidia driver from 430.14 to 430.50 on Ubuntu 18.04 the
Cuda version was downgraded from 10.2 to 10.1.
Why?
Did not find any information on web.

10.2 was a typo that was corrected, so it now displays 10.1 again.