@mos_8502
We were lucky that the Y2K bugs were easy to find, and mostly trivial to fix.
Perhaps we should have missed a few ;-)
I was rather surprised at the number of them we had to fix, considering the software was originally written in 1995.
We were fixing C code where the dates went into fixed size buffers. Typically 2001 would turn into 20101, so it would have been a mess.