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Where can I find the latest revision of A term of Commutative Algebra by Allen B. ALTMAN and Steven L. KLEIMAN? Is my 2013 version ok?

It is hard to locate the latest one; many old revisions and pointers to them are randomly scattered across the web. (Details: The first page of a web search showed me all 4 versions below. Furthermore, none of the seemingly official sites shows the revision date, only saying "2013 issue". You can't check the version until you actually donwnload one and open it.)

This free textbook is intended to be an update of, and an improvement to "A & M", i.e. Introduction to Commutative Algebra by Atiyah and MacDonald.

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    $\begingroup$ What does it mean to ask whether your version is OK? Also, if you know the answer, then why are you asking? $\endgroup$ – LSpice Mar 2 at 1:17
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    $\begingroup$ @LSpice Surely, asking and answering your own questions is OK? In fact, it's "explicitly encouraged" to do so. $\endgroup$ – Carl-Fredrik Nyberg Brodda Mar 2 at 12:46
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    $\begingroup$ @Carl-FredrikNybergBrodda There's a feeling among some users (disclosure: me included) that this SO rule is not so appropriate for MO; we developed our own norms on MO before we formally became part of the StackExchange network. I say this regardless of the merits or otherwise of this particular question $\endgroup$ – Yemon Choi Mar 2 at 22:23
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    $\begingroup$ I agree with both @YemonChoi and Carl-Fredrik. This question is equally or maybe more appropriate for Math SE than MathOverflow. I don't know if it is possible to migrate it. Designating authorship of the question (and answer) as Community Wikis seems reasonable, as an ad hoc measure. $\endgroup$ – Ellie Kesselman Mar 3 at 0:41
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    $\begingroup$ It seems several such discussion threads seem to have been warranted already! There the consensus seems to be as @YemonChoi phrases it; I was not aware of this. $\endgroup$ – Carl-Fredrik Nyberg Brodda Mar 3 at 9:49
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You can get the latest from these sites:

Notice they are surely the latest, although all these three sites only show the initial release year, 2013. Download is open to everyone, including ResearchGate.

Make sure you have at least the 2017 version or later, which was a great expansion. Compare these:

(Let us define the page number by the last page number printed in Arabic numerals. ResearchGate adds an extra front cover, so the pdf page number is not necessarily well-defined.)

A new release (in year 2021) is planned. (Indicated to me in private correspondence.)

Acknowledgement: Emeritus Professor Steven Kleiman kindly answered my question concerning this point.

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