CTAN update: l3packages

The LaTeX Project Team  submitted an update to the

                l3packages

package.

Version: 2024-08-16
License: lppl1.3c

Summary description: High-level LaTeX3 concepts

Announcement text:
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## [2024-08-16]

### Fixed
- Support for optimised commands using `\GetDocumentCommandArgSpec` (issue
  [\#1550](https://github.com/latex3/latex3/issues/1550))
- Unmatched `macrocode` environment in `xtemplate`

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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


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   Thanks for the upload.

     For the CTAN Team
    Manfred Lotz


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