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Ask HN: What is the oldest code you wrote that is still running in production?

5 points by dsiegel2275 ↗ HN
I'm curious to hear from both folks that have been in the industry for decades and those that are still relatively new: To the best of your knowledge what is the oldest bit of code that you've written that you know (or believe) is still running in production?

For myself: I wrote a data management system for nuclear reactor steam generator inspection/repair in VB6 from 1997-1999. It has been running in production since then.

2 comments

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rurban
1994, lot of internal code for a then Austrian ISP, since bought by a competitor, but the code is still running I hear. (Voip regex routing engine for asterisk in C, a webmail in PHP, dns, lot of Perl stuff)
QuadrupleA
Not a professional project, but an academic phrase generator I wrote to poke fun at a teacher in 1996-ish that my teenage friends and I deemed pretentious is still up and running:

https://phrasegenerator.com/academic

Only the source words remain though - code was originally Cold Fusion I think, generated on the server; then ASP.NET & XML when everything cool had to be XML. Currently python / flask with the phrases generated in js.