为什么open-std.org仍将C11列为C的最新版本?

I know, that the latest official standard revision is avaliable at:
https://www.iso.org/standard/74528.html

But since the page related to C language Working Group at http://www.open-std.org -
http://www.open-std.org/JTC1/SC22/WG14/
claims, that it is, quote:

的官方家   ISO / IEC JTC1 / SC22 / WG14-C

现在,它的最新更新日期为:

2020-03-30

为什么仍然说当前的C标准是C11(而不是C17或C18):

ISO和IEC在2011年采用了当前的C编程语言标准(C11)ISO / IEC 9899。   ?

See a screenshot

那只是该页面的维护不力吗?还是它声称不是官方页面?还是工作组不将C18视为标准的真实版本/修订版,而是C11版本的“错误修正”,它仍然是最新版本?

还有一个问题,可能与最初的问题有关。

Different sources over the web refer to N2176.pdf document as the latest draft version of C18, and even provide a link to it. For example, Wikipedia page about C18 provides a link to an archived version of C17 draft from www.open-std.org, and the content of that pdf document looks like a true N2176 document. However the actual n2176.pdf document from the current www.open-std.org: http://www.open-std.org/JTC1/SC22/WG14/www/docs/n2176.pdf is tricky to see, because it is locked with a password. At the same time the draft versions for the previous revisions are free to see.