ctan-ann January 2026

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New on CTAN: bussproofs-colorful
by CTAN Announcements 28 Jan '26

28 Jan '26

Julian submitted the bussproofs-colorful package. Version: 1.0 2026-01-27 License: lppl1.3c Summary description: Color extension for the bussproofs package Announcement text: ---------------------------------------------------------------------- The bussproofs-colorful package adds color support to the bussproofs package. It introduces configurable colors for nodes, inference lines, and rule labels, a theme mechanism, runtime color control commands, and a scoped environment for local color changes. The package preserves the original layout and spacing logic of bussproofs while enabling flexible and consistent color customization. ---------------------------------------------------------------------- The package’s Catalogue entry can be viewed at https://ctan.org/pkg/bussproofs-colorful The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/bussproofs-colorful/ ------------------------------------------------------------------------ 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: tikz-kalender
by CTAN Announcements 28 Jan '26

28 Jan '26

Rolf Niepraschk submitted an update to the tikz-kalender package. Version: 0.6a License: cc-by-sa-1 Summary description: A LaTeX based calendar using TikZ Announcement text: ---------------------------------------------------------------------- A new key to switch between printing the calendar onto two pages (default) and one page only. This was contributed by GitHub user plytimebandit. ---------------------------------------------------------------------- The package’s Catalogue entry can be viewed at https://ctan.org/pkg/tikz-kalender The package’s files themselves can be inspected at https://mirrors.ctan.org/graphics/pgf/contrib/tikz-kalender/ ------------------------------------------------------------------------ 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: physics3
by CTAN Announcements via ctan-ann 28 Jan '26

28 Jan '26

Mingyu Xia submitted the physics3 package. Version number: 0.1A 2026-01-26 License type: lppl1.3c Summary description: Modularized package for easy setting of physical formulas Announcement text: ---------------------------------------------------------------------- - Apart from the legacy `physics` package, this package has solved the abuse of tokens: in the legacy `physics` package, if one writes over 32767 (= 2^{15}-1) matrix commands (although nobody will do this, but it’s a potential risk), then the compiler will crash due to the limitation of memory. Also, the legacy `physics` package used a lot of `g`-argument in xparse of the LaTeX kernel, which is officially not suggested by the LaTeX team. - This package also provides a simple way to typeset the inner product (norm) and outer product (projector) formulas: \bknorm[<size>, basis]{<operator>}, \kbproj[<size>]{<basis>} - Different from another package, `physics2`, this package has optimized the matrix commands: a simple way for inputting a small diagonal matrix (based on the smallmatrix environment in `mathtools` package) is provided: \diagmat*{a, b, c} The star (*) after the `\diagmat` command determines if the output matrix is small. ---------------------------------------------------------------------- This package is located at https://mirrors.ctan.org/macros/latex/contrib/physics3 More information is at https://www.ctan.org/pkg/physics3 ------------------------------------------------------------------------ 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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New on CTAN: physics3
by CTAN Announcements via ctan-ann 28 Jan '26

28 Jan '26

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CTAN update: iaria
by CTAN Announcements 28 Jan '26

28 Jan '26

Christoph P. Neumann submitted an update to the > > iaria > > package. > > Version: 0.9 2026-01-26 > License: lppl1.3c > > Summary description: Write documents for the IARIA publications > > Announcement text: > ---------------------------------------------------------------------- > > Changed urldate to iso8601. Changed citestyle for IEEE cite compression to ieee-comp (which is now supported by Overleaf with its texlive2025). > > ---------------------------------------------------------------------- > > The package’s Catalogue entry can be viewed at > https://ctan.org/pkg/iaria > > The package’s files themselves can be inspected at > https://mirrors.ctan.org/macros/latex/contrib/iaria/ > > ---------------------------------------------------------------------- > > Thanks for the upload. > > For the CTAN Team > Vincent Goulet > > ---------------------------------------------------------------------- > > 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: iaria-lite
by CTAN Announcements 28 Jan '26

28 Jan '26

Christoph P. Neumann submitted an update to the > > iaria-lite > > package. > > Version: 0.9 2026-01-26 > License: lppl1.3c > > Summary description: Write documents for the IARIA publications > > Announcement text: > ---------------------------------------------------------------------- > > Changed urldate to iso8601. Changed citestyle for IEEE cite compression to ieee-comp (which is now supported by Overleaf with its texlive2025). > > ---------------------------------------------------------------------- > > The package’s Catalogue entry can be viewed at > https://ctan.org/pkg/iaria-lite > > The package’s files themselves can be inspected at > https://mirrors.ctan.org/macros/latex/contrib/iaria-lite/ > > ---------------------------------------------------------------------- > > Thanks for the upload. > > For the CTAN Team > Vincent Goulet > > ---------------------------------------------------------------------- > > 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: expltools
by CTAN Announcements 28 Jan '26

28 Jan '26

Vít Starý Novotný submitted an update to the > > expltools > > package. > > Version: 2026-01-27 > License: lppl1.3c gpl2+ > > Summary description: Development tools for expl3 programmers > > Announcement text: > ---------------------------------------------------------------------- > > ## expltools 2026-01-27 > > ### explcheck v0.17.0 > > #### Development > > This version of explcheck has implemented the following new features: > > - Implement reaching definitions algorithm for function (variant) definitions > to the flow analysis. (#152) > > This algorithm has been described in some detail in [a recent blog > post][Expl3-Linter-11.5]. > > [Expl3-Linter-11.5]: https://witiko.github.io/Expl3-Linter-11.5/ "Static analysis of expl3 programs (11½): Chunks, edges, flow graphs, confidence, and reaching definitions" > > Flow analysis remains disabled by default, since no issues are reported from > it yet. To enable it, set the Lua option `stop_after = "flow analysis"` > either in your Lua code or your configuration file. > > After this change, you may already see preliminary flow analysis results in > explcheck's verbose output. However, unless explcheck understands your file > sufficiently well, it will typically stop before reaching the flow analysis > step and will report this in the verbose output. > > If explcheck reaches semantic analysis, you can encourage it to proceed to > flow analysis by decreasing the Lua option `min_code_coverage` towards zero. > If explcheck bails out earlier, try disabling `stop_early_when_confused` or, > ideally, improve your code quality and contribute to expltools so that it can > understand your code better. 😉 > > - In the syntactic analysis, fix the assignment of segment numbers to `T`- and > `F`-type arguments. (#152) > > - Add Lua options `max_reaching_definition_inner_loops` and > `max_reaching_definition_outer_loops`. (#152) > > These options help guard against the reaching definitions algorithm failing > to converge fast. > > #### Continuous integration > > This version of explcheck has made the following changes to our continuous > integration: > > - Bump actions/download-artifact from 6 to 7. (contributed by @dependabot in #153) > > - Bump actions/upload-artifact from 5 to 6. (contributed by @dependabot in #154) > > - Display processing progress in the CI. (#152) > > - Analyze package files using multiple CPUs in the CI. (#152) > > This speeds up the CI by ca 40% from ca 25 minutes to ca 15 minutes. > > ---------------------------------------------------------------------- > > 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/ > > ---------------------------------------------------------------------- > > Thanks for the upload. > > For the CTAN Team > Vincent Goulet > > ---------------------------------------------------------------------- > > 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: luamplib
by CTAN Announcements 28 Jan '26

28 Jan '26

Dohyun Kim submitted an update to the > > luamplib > > package. > > Version: 2.38.3 2026-01-27 > License: gpl2 > > Summary description: Use LuaTeX’s built-in MetaPost interpreter > > Announcement text: > ---------------------------------------------------------------------- > > Run file changes: > * new optional macro for shading: withshadingstroke > * avoid error upon shading a picture composed of multiple paths > > Documentation changes: > * be more precise about the term 'textual picture' > * generalize the code for the example macro \mpnumeric > * add subsections on registerpattern() and registergroup() > > ---------------------------------------------------------------------- > > The package’s Catalogue entry can be viewed at > https://ctan.org/pkg/luamplib > > The package’s files themselves can be inspected at > https://mirrors.ctan.org/macros/luatex/generic/luamplib/ > > ---------------------------------------------------------------------- > > Thanks for the upload. > > For the CTAN Team > Vincent Goulet > > ---------------------------------------------------------------------- > > 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: cs-techrep
by CTAN Announcements 28 Jan '26

28 Jan '26

Christoph P. Neumann submitted an update to the > > cs-techrep > > package. > > Version: 0.9 2026-01-26 > License: lppl1.3c > > Summary description: Technical Reports in Computer Science and Software Engineering > > Announcement text: > ---------------------------------------------------------------------- > > Changed urldate to iso8601. > > ---------------------------------------------------------------------- > > The package’s Catalogue entry can be viewed at > https://ctan.org/pkg/cs-techrep > > The package’s files themselves can be inspected at > https://mirrors.ctan.org/macros/latex/contrib/cs-techrep/ > > ---------------------------------------------------------------------- > > Thanks for the upload. > > For the CTAN Team > Vincent Goulet > > ---------------------------------------------------------------------- > > 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: pmdraw
by CTAN Announcements 28 Jan '26

28 Jan '26

Matthias Fresacher submitted an update to the pmdraw package. Version: 2.2 2026-01-27 License: lppl1.3 Summary description: Draw elements of the diagram monoids Announcement text: ---------------------------------------------------------------------- Added new fill key for edges and other minor edits and improvements in manual ---------------------------------------------------------------------- The package’s Catalogue entry can be viewed at https://ctan.org/pkg/pmdraw The package’s files themselves can be inspected at https://mirrors.ctan.org/graphics/pgf/contrib/pmdraw/ ------------------------------------------------------------------------ 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 January 2026