François Pantigny submitted an update to the
nicematrix
package.
Version number: 3.15 2020-04-06 License type: lppl1.3
Summary description: Improve the typesetting of mathematical matrices with PGF
Announcement text: ----------------------------------------------------------------------
Possibility to put labels on the dotted lines drawn by Ldots, Cdots, Vdots, Ddots, Iddots, Hdotsfor and line in the 'code-after'. The syntax uses the characters '_' and '^'.
The option 'baseline' is now available in all the environments of nicematrix.
Alternative syntax of the code-after with the command CodeAfter at the end of the environment. ----------------------------------------------------------------------
This package is located at http://mirror.ctan.org/macros/latex/contrib/nicematrix
More information is at http://www.ctan.org/pkg/nicematrix
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Thanks for the upload.
For the CTAN Team Ina Dau