CTAN update: tkz-tab

Alain Matthes submitted an update to the tkz-tab package. Version: 2.13c 2026-10-19 License: lppl1.3c Summary description: Tables of signs and variations using PGF/TikZ Announcement text:

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## [2.13] — 2026/10/05 ### Changed - Keys use `pgfkeys` instead of `xkeyval`: same names, same default values, defaults reset at each call as before (`\tkzTabSetup` included). - `\tkzTabVar`: the 31 symbols are keys `/tkztab/var/<symbol>` (the long cascade of `\ifthenelse` is removed); a new symbol can be added with `\pgfkeys{/tkztab/var/<symbol>/.code={...}}`. - `\tkzTabLine`: the symbols `z`, `t`, `d`, `h` are keys `/tkztab/line/odd/<s>` and `/tkztab/line/even/<s>`. - Useless `\makeatletter`/`\makeatother` removed (`\tkzTabLine`, `\tkzDrawArrow`). - `xkeyval` is no longer loaded: a document that used it without loading it must now load it. ### Fixed - Option `help` of `\tkzTabInit`, `\tkzTabLine` and `\tkzTabVar`: the labels of the nodes failed (`Undefined control sequence`) with the TikZ library `babel` when the picture is inside an environment that reads its content again, such as `tkzexample`.

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This package is located at https://mirrors.ctan.org/macros/latex/contrib/tkz/tkz-tab More information is at https://ctan.org/pkg/tkz-tab

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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 .