From Wiktionary, the free dictionary
Abbreviation of year 10 and 000 (10k) bug. Based on the Y2K bug.
Y10K bug
- (computing, often humorous) A bug like the millennium bug, that arises when a 4‐digit year system — from "0000" to "9999" — fails to display, store or calculate the year 10,000 or any later year.
