CTAN update: l3backend-dev

The LaTeX Project Team submitted an update to the

                  l3backend-dev

package.

Version:  2025-06-09
License:  lppl1.3c

Summary description:  LaTeX3 backend drivers (dev)

Announcement text:
----------------------------------------------------------------------

 ### Changed
 - Set PDF 1.7 as standard value for `(x)dvipdfmx`

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

The package’s Catalogue entry can be viewed at
   https://ctan.org/pkg/l3backend-dev

The package’s files themselves can be inspected at
   https://mirrors.ctan.org/macros/latex-dev/required/l3backend/

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

   Thanks for the upload.

     For the CTAN Team
    Petra Rübe-Pugliese

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

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