The Japanese TeX Development Community submitted an update to the
platex
package.
Version number: 2021-12-11 License type: bsd3
Summary description: pLaTeX2e and miscellaneous macros for pTeX
Announcement text: ----------------------------------------------------------------------
Support LaTeX2e 2021-11-15. Improve detection of (u)pTeX.
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This package is located at https://mirrors.ctan.org/language/japanese/platex
More information is at https://www.ctan.org/pkg/platex
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Thanks for the upload.
For the CTAN Team Manfred Lotz
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 .