CTAN Update: l3kernel + l3packages + l3experimental

[CTAN Announcements]

The LaTeX Team  submitted an update to the

          l3kernel + l3packages + l3experimental

bundles.

Version:  2018-09-24
License:  lppl1.3c

Summary description:  LaTeX3 programming conventions

Announcement text:
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 # Release 2018-09-24

 ## l3packages

 ### Changed
 - `xparse`: put spaces back when a trailing optional arg is absent (fixes #466)

 ## l3kernel

 ### Added
 - Some driver-level support for PDF features
 - `\peek_catcode_collect_inline:Nn`, `\peek_charcode_collect_inline:Nn`,
   `\peek_meaning_collect_inline:Nn`

 ### Fixed
 - Handling of unknown keys when inheritance is active (fixes #481)

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The packages’ Catalogue entries can be viewed at
   https://ctan.org/pkg/l3kernel
   https://ctan.org/pkg/l3packages
   https://ctan.org/pkg/l3experimental

The packages’ files themselves can be inspected at
   http://mirror.ctan.org/macros/latex/contrib/l3kernel/
   http://mirror.ctan.org/macros/latex/contrib/l3packages/
   http://mirror.ctan.org/macros/latex/contrib/l3experimental/

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   Thanks for the upload.

     For the CTAN Team
    Petra Rübe-Pugliese

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