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Re:Ask HN: Which is the oldest software alive still in 0.x, ... by wenc on Thursday September 28, 2023 @10:23PM (#37698580)
TeX converges to pi

It's currently at version 3.141592653

https://en.wikipedia.org/wiki/TeX

Re:Ask HN: Which is the oldest software alive still in 0.x, ... by smitty1e on Thursday September 28, 2023 @10:32PM (#37698637)
And the related Metafont converges to e.

Knuth for the transcendental win!

Re:Ask HN: Which is the oldest software alive still in 0.x, ... by reikonomusha on Thursday September 28, 2023 @10:37PM (#37698674)
It would be a transcendental tragedy, because those versions only truly become transcendental when Knuth dies. :(
Re:Ask HN: Which is the oldest software alive still in 0.x, ... by nailer on Friday September 29, 2023 @12:02AM (#37699142)
Knuth also has his own definition of bug, limited to mathematical incorrectness.