Jean-François Burnol submitted an update to the
mathastext
package.
Version number: 1.3v 2019-09-19 License type: lppl1.3
Summary description: Use the text font in maths mode
Announcement text: ----------------------------------------------------------------------
Adapt to math macros (such as math accents) being robust with upcoming LaTeX release dated 2019-10-01, and update legacy code via usage of protected for macros replacing mathchar tokens.
For details refer to the Change log section in mathastext.pdf ----------------------------------------------------------------------
This package is located at http://mirror.ctan.org/macros/latex/contrib/mathastext
More information is at http://www.ctan.org/pkg/mathastext
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Thanks for the upload.
For the CTAN Team Ina Dau