ctan-ann September 2026

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New on CTAN: pgfplots-autonode
by CTAN Announcements 21 Sep '26

21 Sep '26

Christophe Jorssen submitted the pgfplots-autonode package. Version: 1.0.0 License: lppl1.3c Summary description: Collision-aware automatic labels for PGFPlots curves Announcement text: -------------------------------------------------------------------------------- pgfplots-autonode is a format-generic LuaTeX library for automatic collision-aware labels on PGFPlots curves. It measures actual TeX node geometry, samples visible paths in canvas coordinates, and offers deterministic bounded assignment algorithms, plot-boundary constraints, priorities, and diagnostics for LuaLaTeX, plain LuaTeX, and ConTeXt. -------------------------------------------------------------------------------- This package is located at https://mirrors.ctan.org/graphics/pgf/contrib/pgfplots-autonode More information is at https://ctan.org/pkg/pgfplots-autonode -------------------------------------------------------------------------------- Thanks for the upload. For the CTAN Team Manfred Lotz 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 .

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New on CTAN: unhook
by CTAN Announcements 21 Sep '26

21 Sep '26

Conrad Kosowsky submitted the unhook package. Version: 1.0 License: lppl1.3c Summary description: Disable some LaTeX3 to simplify tracing Announcement text: ------------------------------------------------------------------------ The unhook package disables various LaTeX3 features to improve tracing. It is intended for LaTeX2e package developers to make debugging easier. ------------------------------------------------------------------------ The package’s Catalogue entry can be viewed at https://ctan.org/pkg/unhook The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/unhook/ ------------------------------------------------------------------------ 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

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CTAN update: dirtreex
by CTAN Announcements 20 Sep '26

20 Sep '26

CloudCauldron submitted an update to the dirtreex package. Version: 1.2 2026-09-19 License: lppl1.3c Summary description: Directory tree rendering for LaTeX with TikZ Announcement text: ------------------------------------------------------------------------ This release adds per-entry icons and customizable comment leaders, improves pagination and layout compatibility, and simplifies the package internals. - Add icon={...} to all six entry commands, with icon access through \DirtreexGetField{idx}{i}. - Add dotfill color and dotfill command for colored dots, rules and custom comment leaders. - Improve page-start, continuation and standard two-column splitting, including float reservations, multiline rows and paragraph-spacing compatibility. - Correct closing-fragment fitting, empty trailing fragments and repeated deferral handling. - Fix inline TikZ style lists, preserve user node names and avoid duplicate boundary strokes. Existing entry-command signatures and the name/type field accessors remain compatible. ------------------------------------------------------------------------ The package’s Catalogue entry can be viewed at https://ctan.org/pkg/dirtreex The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/dirtreex/ ------------------------------------------------------------------------ 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

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CTAN update: chemfig
by CTAN Announcements via ctan-ann 20 Sep '26

20 Sep '26

Christian Tellechea submitted an update to the chemfig package. Version: 1.82 2026-09-19 License: lppl1.3c Summary description: Draw molecules with easy syntax Announcement text: -------------------------------------------------------------------------------- chemfig v1.82 - bug fixed in \CF_drawatomgroup -------------------------------------------------------------------------------- This package is located at https://mirrors.ctan.org/macros/generic/chemfig More information is at https://ctan.org/pkg/chemfig -------------------------------------------------------------------------------- Thanks for the upload. For the CTAN Team Erik Braun 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 .

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CTAN update: GraphTheorySymbol
by CTAN Announcements 20 Sep '26

20 Sep '26

Laurent Lyaudet submitted an update to the GraphTheorySymbol package. Version: 1.6.0 2026-09-18 License: lgpl3 Summary description: Macros for symbols used in graph theory Announcement text: ------------------------------------------------------------------------ Hello, We are happy to announce the release of our LaTeX package GraphTheorySymbol V1.6.0 2026/09/18. It adds mainly macros for symbols for meta-logic. And also versatile macros that can take various options to yield the distinct symbols. Best regards, Laurent Lyaudet ------------------------------------------------------------------------ The package’s Catalogue entry can be viewed at https://ctan.org/pkg/graph-theory-symbol The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/graph-theory-symbol/ ------------------------------------------------------------------------ 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

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New on CTAN: luacoolprop
by CTAN Announcements 19 Sep '26

19 Sep '26

Christophe Jorssen submitted the luacoolprop package. Version: 1.1.0 License: lppl1.3c Summary description: Thermodynamic calculations and diagrams in LuaTeX via the CoolProp shared library Announcement text: -------------------------------------------------------------------------------- This package was vibe-coded with the assistance of ChatGPT. AI-generated code and thermodynamic results require independent review; the README and manual warn users accordingly. Full --shell-escape is required for the LuaTeX FFI mechanism and can execute arbitrary commands with the user permissions, so only trusted documents should be compiled. The upload ZIP contains a browsable luacoolprop/ tree and a separate luacoolprop.tds.zip at its root. CoolProp source and binary files are external dependencies and are not included. -------------------------------------------------------------------------------- This package is located at https://mirrors.ctan.org/macros/luatex/generic/luacoolprop More information is at https://ctan.org/pkg/luacoolprop -------------------------------------------------------------------------------- Thanks for the upload. For the CTAN Team Manfred Lotz 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 .

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CTAN update: intexgral
by CTAN Announcements via ctan-ann 19 Sep '26

19 Sep '26

Valentin Dao submitted an update to the intexgral package. Version: 4.3.0 2026-09-18 License: lppl1.3c Summary description: A LaTeX package for typesetting integrals Announcement text: -------------------------------------------------------------------------------- ANNOUNCEMENT FOR INTEXGRAL v4.3.0 (2026-09-18) Changes ---------------- Added - Macro `\antideriv`. - Keys `delim`, `limits`, `big`, `Big`, `bigg`, `Bigg` and `auto` for `\antideriv`. Fixed - Issue with `defaultvar` (isssue #20). Changed - `defaultvar` can now accept `none` as a value. Deprecated - Key `novar`. -------------------------------------------------------------------------------- This package is located at https://mirrors.ctan.org/macros/latex/contrib/intexgral More information is at https://ctan.org/pkg/intexgral -------------------------------------------------------------------------------- Thanks for the upload. For the CTAN Team Erik Braun 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 .

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CTAN update: keytheorems
by CTAN Announcements 19 Sep '26

19 Sep '26

Matthew Bertucci submitted an update to the keytheorems package. Version: 0.4.0 2026-09-17 License: lppl1.3c Summary description: An l3keys interface to amsthm Announcement text: -------------------------------------------------------------------------------- Updates since v0.3.4: ## v0.4.0 - add `auto-qed` option (alias `thmmarks`) for automatic QED placement; meant to emulate ntheorem's `thmmarks` option ## v0.3.7 - adapt support for tagged PDF with June 2026 LaTeX release ## v0.3.6 - add Hungarian translations ([\#53](https://github.com/mbertucci47/keytheorems/pull/53); thanks Lóránt Hadnagy!) ## v0.3.5 - add `ignore` key ([\#46](https://github.com/mbertucci47/keytheorems/issues/46)) - fix bug when `tcb-append` is used with `tcolorbox-no-titlebar` -------------------------------------------------------------------------------- This package is located at https://mirrors.ctan.org/macros/latex/contrib/keytheorems More information is at https://ctan.org/pkg/keytheorems -------------------------------------------------------------------------------- Thanks for the upload. For the CTAN Team Manfred Lotz 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 .

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CTAN update: zref
by CTAN Announcements 18 Sep '26

18 Sep '26

The LaTeX Project Team submitted an update to the zref package. Version: 2.38 2026-09-16 License: lppl1.3c Summary description: A new reference scheme for LaTeX Announcement text: ------------------------------------------------------------------------ - adapted titleref module to `\DocumentMetadata` - documentation is now tagged - added some missing command documentations - removed loading of `atbegshi` and removed `\zref@thepage@atbegshi@hook` in the zref-thepage module ------------------------------------------------------------------------ The package’s Catalogue entry can be viewed at https://ctan.org/pkg/zref The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/zref/ ------------------------------------------------------------------------ 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

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New on CTAN: datemultical
by CTAN Announcements 18 Sep '26

18 Sep '26

Amer Amikhteh submitted the datemultical package. Version: 0.1.0 2026-09-17 License: lppl1.3c Summary description: Named dates, calendar conversion, and date formatting for LaTeX Announcement text: ------------------------------------------------------------------------ The datemultical package is now available on CTAN. datemultical provides a unified interface for defining, converting, and formatting named dates in multiple calendar systems in LaTeX. It includes a built-in TeX backend for the Gregorian, Solar Hijri, and Lunar Hijri calendars, as well as an extended LuaLaTeX backend using lua-calendrica for a wide range of historical, astronomical, and traditional calendars. The package provides field-based date retrieval, customizable date formatting patterns, predefined date styles, calendar-specific month and weekday names, and support for leap-year, leap-month, and leap-day information. Persian localization and high-level Persian date and weekday commands are also included. Version 0.1.0 is the initial release of datemultical. ------------------------------------------------------------------------ The package’s Catalogue entry can be viewed at https://ctan.org/pkg/datemultical The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/datemultical/ ------------------------------------------------------------------------ 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

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ctan-ann September 2026