I have at least one Knuth check¹ from the days when they were actual checks, but to be honest, I’m not 100% sure where it (they?) are. I’m on the mailing list where potential TeX-related bugs appear and it’s crazy the level of detail people go to in looking for any remaining bugs in that software.
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1. I know at least one of these came from porting lesser-known utilities to VM/CMS. By that time, DEK already had adopted a practice of having his secretary print his emails and he’d hand-write a reply and you’d get it in the mail.
Comments
I have at least one Knuth check¹ from the days when they were actual checks, but to be honest, I’m not 100% sure where it (they?) are. I’m on the mailing list where potential TeX-related bugs appear and it’s crazy the level of detail people go to in looking for any remaining bugs in that software.
⸻
1. I know at least one of these came from porting lesser-known utilities to VM/CMS. By that time, DEK already had adopted a practice of having his secretary print his emails and he’d hand-write a reply and you’d get it in the mail.