CTAN update: expltools

Vít Starý Novotný submitted an update to the

                expltools

package.

Version: 2026-04-13
License: lppl1.3c gpl2+

Summary description: Development tools for expl3 programmers

Announcement text:
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## expltools 2026-04-13

### explcheck v0.19.2

#### Fixes

This version of explcheck has fixed the following problems:

- Recognize `\prop_new_linked:N` as a variable declaration statement
  and `\prop_const_from_keyval:Nn`, `\prop_const_linked_from_keyval:Nn`,
  `\prop_set_from_keyval:Nn`, and `\prop_gset_from_keyval:Nn` as
  constant and variable definition statements. (reported by @muzimuzhi in #196,
  fixed in #198)

  More generally, this change also adds support for constant definitions in the
  form `\⟨type⟩_const_from_⟨base_type⟩:*`. This improves [code coverage][] by
  37,759 expl3 tokens (~0.004% of all expl3 tokens) on TeX Live 2026.

- Correctly differentiate between direct and indirect variable and constant
  definitions in the form `\⟨type⟩_(set|gset|const)_from_⟨base_type⟩:*`. (#198)

- Only report issues E504 (Function variant for an undefined function),
  E506 (Indirect function definition from an undefined function), and
  W507 (Setting a function before definition) for top-level reachable segments.
  (reported by @muzimuzhi in #195, fixed in #198)

- Do not report issue E505 (Calling an undefined function) for indirect
  definitions that resolve to well-known control sequence names.
  (reported by @muzimuzhi in #197, fixed in #198)

[code coverage]: https://witiko.github.io/Expl3-Linter-11/#code-coverage

#### Continuous integration

This version of explcheck has made the following changes to our continuous
integration:

- Update the `zauguin/install-texlive` action to v4.3. (484989a)
- Retry `tlmgr install` and `update`. (#198)

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

The package’s files themselves can be inspected at
    https://mirrors.ctan.org/support/expltools/

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Thanks for the upload.

For the CTAN Team
Vincent Goulet

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