Since version 3, TeX has used an idiosyncratic version numbering system, where updates have been indicated by adding an extra digit at the end of the decimal, so that the version number asymptotically approaches π. This is a reflection of the fact that TeX is now very stable, and only minor updates are anticipated. The current version of TeX is 3.141592653; it was last updated in 2021.
The first democratic election in Taiwan was in 1996. Probably a major reason why the Taiwanese are so wary of Chinese influence is because most voters have actually lived through authoritarian rule.
This is what Donald Knuth is doing with TeX :)
Wikipedia: