I was the on-call for a global company during the year-end week in 1999/2000 and was tasked with checking each region as they passed midnight to see if there was anything they needed assistance with.
When I spoke to our guys in Moscow they told me 'Our Y2K bug has been fixed, our president has been replaced'.
In retrospect, I think that Boris Yeltsin's replacement has proven to be more problematic in the longer term than the millennium bug was!