CTAN Update: l3kernel

[CTAN Announcements]

The LaTeX Team submitted an update to the

                l3kernel

bundle.

Version:  2020-10-27
License:  lppl1.3c

Summary description:  LaTeX3 programming conventions

Announcement text:
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 ## [2020-10-27]

 ### Added
 -  `\token_if_font_selection:N(TF)` (see #806)

 ### Fixed
 - Avoid relying on braced `\input` primitive syntax
 - Correct expansion of environments in `\text_purify:n`
 - Some aspects of `cctab` setup with 8-bit engines(issue #814)

 ### Changed
 - Improved performance for `tl` functions
 - Extend case changer to cover all of Greek with pdfTeX

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The package’s Catalogue entry can be viewed at
   https://ctan.org/pkg/l3kernel

The package’s files themselves can be inspected at
   http://mirror.ctan.org/macros/latex/contrib/l3kernel/

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   Thanks for the upload.

     For the CTAN Team
    Petra Rübe-Pugliese

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