CTAN update: l3packages

[CTAN Announcements]

The LaTeX Project Team  submitted an update to the

                l3packages

package.

Version number: 2024-02-18
License type: lppl1.3c

Summary description: High-level LaTeX3 concepts

Announcement text:
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## [2024-02-18]

### Changed
- Re-added `\IfInstanceExist(TF)` to docs - is required
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This package is located at 
   https://mirrors.ctan.org/macros/latex/contrib/l3packages

More information is at
   https://www.ctan.org/pkg/l3packages

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

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   Thanks for the upload.

     For the CTAN Team
    Ina Dau


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