Index of /systems/knuth
      Name                    Last modified       Size  Description

[DIR] Parent Directory 25-Apr-2020 02:07 - [   ] dist.zip 09-Feb-2021 22:01 4.8M [   ] local.zip 10-Feb-2021 15:32 1.6M [DIR] local/ 10-Feb-2021 15:32 - [DIR] dist/ 25-Mar-2021 05:45 -

These directories contain the files distributed by Donald Knuth from
ftp.cs.stanford.edu:pub/tex. They have been updated by him for his
2021 tune-up of TeX and Metafont.

The dist/ subdirectory contains the files that he considers part of
the official TeX system.

The local/ subdirectory, on the other hand, contains some
supplementary files written by him (which are mostly copied into the
main TeX distributions), as well as old versions of files created by
other people, parts of an old Unix TeX installation, derived files,
and other miscellany. Don't take the conglomeration too seriously.

For more links, see https://ctan.org/pkg/knuth-dist.