François Pantigny submitted an update to the
nicematrix
package.
Version number: 6.3 2021-10-18 License type: lppl1.3
Summary description: Improve the typesetting of mathematical matrices with PGF
Announcement text: ----------------------------------------------------------------------
Keys 'nb-rows', 'rowcolor' and 'bold' for the command RowStyle.
Key 'name' for the command Block.
Support for the columns 'V' of the extension varwidth. ----------------------------------------------------------------------
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More information is at https://www.ctan.org/pkg/nicematrix
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Thanks for the upload.
For the CTAN Team Ina Dau