François Pantigny submitted an update to the
nicematrix
package.
Version: 3.0 2019-08-15 License: lppl1.3
Summary description: Several features to improve the typesetting of mathematical matrices with TikZ
Announcement text: ----------------------------------------------------------------------
With this version 3.0, it's possible to put exterior columns on both sides of the matrix (idem for the rows).
Some environments of the previous versions are deprecated (pNiceArrayC, etc.) and replaced by the use of a more systematic set of keys (first-col, last-col, first-row, and last-row).
----------------------------------------------------------------------
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/nicematrix
The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/nicematrix/
------------------------------------------------------------------------
Thanks for the upload.
For the CTAN Team Petra Rübe-Pugliese
------------------------------------------------------------------------
CTAN is run entirely by volunteers and supported by TeX user groups. Please join a user group; see https://ctan.org/lugs .