CTAN Update: nicematrix

[CTAN Announcements]

François Pantigny submitted an update to the

                nicematrix

package.

Version:  5.12 2021-03-10
License:  lppl1.3

Summary description:  Improve the typesetting of mathematical matrices with PGF

Announcement text:
----------------------------------------------------------------------
 
 New syntax with the keyword \CodeBefore (and \Body) to specify
 the code-before.

 New key delimiters/max-width

 New keys hlines, vlines dans hvlines for the command \SubMatrix
 in the \CodeAfter.

 New key rounded-corners for the command \Block.

----------------------------------------------------------------------

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 or donate to one, see https://ctan.org/lugs