Tesla hasn't been super consistent in version numbering. I kind of hope they copy Apple.
Mac OS 8 came out in 1997. Mac OS 9 came out in 1999. They then stuck with Mac OS 10.x releases for the next TWENTY YEARS. And then 11, 12, 13 and 14.
Are you sure FSD 12.85 in 2044 won't be amazing? But...