I'm going to buy The TeXbook, and I have two alternatives for that:
- buy an old version one in a discounted price
- buy the newest version one in the fixed price
To be honest, I would like to save money, but if there are fundamental differences between an old version of Texbook and the latest version of one, I think I should buy the latest version one even though there are some errata.
Here is my question: is there any fundamental or big difference between an old version of Texbook and the latest version of TeXbook?
Now I understand that new feature of TeX3 is supported by the 17th printing of the softback version or the 11th printing edition of the hardcover version, or any later edition.
According to author's comment, there were two turning points for TeXbook after TeX3 was supported. Then I would like to focus on those two things:
- Is there any big difference between millennium printing edition and an earlier edition?
- Is there any big difference between the 19th printing edition (from Apr. 2012) and millennium edition?