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Donald Knuth mentions in the TeX: the program that he has used the pascal programming language described in the user manual of pascal by jensen and wirth in 1975 to implement TeX. My question is when knuth released the current version of tex in 2014, how did he test it? what tools did he use to compile tex himself? how does he compile tex himself for testing the new version? does he use web2c? I am curious to know how he himself compiles tex from source?

closed as off-topic by Henri Menke, Troy, Zarko, ChrisS, cfr Sep 15 '17 at 3:24

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question does not fall within the scope of TeX, LaTeX or related typesetting systems as defined in the help center." – Henri Menke, Troy, Zarko, ChrisS, cfr
If this question can be reworded to fit the rules in the help center, please edit the question.

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    TeX is frozen. Bug fixes only. As bugs get fixed, the version number tends to \pi. But there are no new versions of TeX in the sense you mean. – cfr Sep 14 '17 at 18:12
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    @cfr The program must be compiled to test the bug fixes anyhow. – egreg Sep 14 '17 at 19:26
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    I'm not sure this is answerable by anyone other than DEK: that probably makes it OT! – Joseph Wright Sep 14 '17 at 19:41
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    There is an official test for the TeX engine. If your program passes the test, you can call it TeX. The rest is all written in TeX itself. – John Kormylo Sep 14 '17 at 20:26
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    I thought that someone here knows something but apparently you all are as clueless as I am. I can not really stop laughing at some of the silly comments above. I wil ask Knuth directly then. I just hoped that perhaps Barbara Beeton may know about it. – James Mccoy Sep 15 '17 at 4:51

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