CTAN update: l3kernel

[CTAN Announcements]

The LaTeX Project Team  submitted an update to the

                l3kernel

package.

Version: 2023-08-29
License: lppl1.3c

Summary description: LaTeX3 programming conventions

Announcement text:
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## [2023-08-29]

### Added
- `\c_sys_timestamp_str`

### Changed
- Rename `\tex_pdfcreationdate:D` to `\tex_creationdate:D`

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This package is located at
   https://mirrors.ctan.org/macros/latex/contrib/l3kernel

More information is at
   https://www.ctan.org/pkg/l3kernel


--------------------------------------------------------------------------------

   Thanks for the upload.

     For the CTAN Team
    Manfred Lotz


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