Bash 4.4

//P.S. чейнджлога не нашёл

git.savannah.gnu.org/cgit/bash.git/diff/NEWS?id=a0c0a00fc419b7bc08202a79134fcd5bc0427071&utm_source=anzwix

Правда, этот сайт что-то лежит, но утром всё норм было.

чейнджлога не нашёл

Там простыня в файле CHANGES. А файл ChangeLog последний раз обновлялся с релизом 4.2.

Тем временем, доки уже адаптированы ==> ftp://ftp.cwru.edu/pub/bash/FAQ

Нет. По ссылке:

Section B:  The latest version

B1) What's new in version 4.3?
B2) Are there any user-visible incompatibilities between bash-4.3 and
    previous bash versions?

...

A2)  What's the latest version?

The latest version is 4.3, first made available on 26 February, 2014.

A3)  Where can I get it?

Bash is the GNU project's shell, and so is available from the
master GNU archive site, ftp://ftp.gnu.org, and its mirrors.  The
latest version is also available for FTP from ftp://ftp.cwru.edu.
The following URLs tell how to get version 4.3:

ftp://ftp.gnu.org/pub/gnu/bash/bash-4.3.tar.gz
ftp://ftp.cwru.edu/pub/bash/bash-4.3.tar.gz

Formatted versions of the documentation are available with the URLs:

ftp://ftp.gnu.org/pub/gnu/bash/bash-doc-4.3.tar.gz
ftp://ftp.cwru.edu/pub/bash/bash-doc-4.3.tar.gz

Any patches for the current version are available with the URL:

ftp://ftp.cwru.edu/pub/bash/bash-4.3-patches/

...

B1) What's new in version 4.3?

Bash-4.3 is the third revision to the fourth major release of bash.

Bash-4.3 contains the following new features (see the manual page for
complete descriptions and the CHANGES and NEWS files in the bash-4.3
distribution):

...

B2) Are there any user-visible incompatibilities between bash-4.3 and
    previous bash versions?

There are a few incompatibilities between version 4.3 and previous
versions.  They are detailed in the file COMPAT in the bash distribution.

This is the Bash FAQ, version 4.14, for Bash version 4.4.

И это единственная обновлённая строчка.

значит, файл всё-таки обновили :-)

Есть какие-то новые фичи?

да. https://www.opennet.ru/opennews/art.shtml?num=45163