Probably the Techies +25x damage talent? In 2017 [7.07] it was increased from +250 damage to +251 damage. Then in 2020 [7.28] it was increased again to +252 damage.
After some more looking around I found it, Puck's orb gained 1 movement speed in 6.87 [0] after the markov chain notes for the patch [1]. Though I think the techies one is a similar joke.
[0]: https://www.dota2.com/687
[1]: https://old.reddit.com/r/DotA2/comments/4fw6gm/how_687_would...