François Pantigny submitted an update to the
nicematrix
package.
Version number: 4.3 2020-06-12 License type: lppl1.3
Summary description: Improve the typesetting of mathematical matrices with PGF
Announcement text: ----------------------------------------------------------------------
With this version, the horizontal centering of the content of a 'Block' is correct even when an instruction such as '!{qquad}' has been used in the preamble.
It's now possible to use 'Block' in the 'last row' (see : tex.stackexchange.com/questions/548937/nicematrix-block-does-not-work-with-last-row-option)
----------------------------------------------------------------------
This package is located at http://mirror.ctan.org/macros/latex/contrib/nicematrix
More information is at https://www.ctan.org/pkg/nicematrix
------------------------------------------------------------------------
Thanks for the upload.
For the CTAN Team Erik Braun
------------------------------------------------------------------------
CTAN is run entirely by volunteers and supported by TeX user groups. Please join a user group or donate to one, see https://ctan.org/lugs