CTAN update: zref-check

[CTAN Announcements]

Gustavo Barros submitted an update to the

                zref-check

package.

Version number: 0.2.3
License type: lppl1.3c

Summary description: Flexible cross-references with contextual checks 
based on zref

Announcement text:
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## v0.2.3 (2021-12-20)

### Fixed
- Use `main` property list for user facing labels in `\zctarget` and
  `zcregion` environment, so that references made to them with `zref-clever`
  contain all required properties.


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This package is located at 
   https://mirrors.ctan.org/macros/latex/contrib/zref-check

More information is at
   https://www.ctan.org/pkg/zref-check

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   Thanks for the upload.

     For the CTAN Team
    Erik Braun

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