CTAN update: tcolorbox

Thomas F. Sturm submitted an update to the

                 tcolorbox

package.

Version number: 6.10.0 2026-05-28
License type: lppl1.3

Summary description: Coloured boxes, for LaTeX examples and theorems, etc.

Announcement text:
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### Added
- Documentation:
     - Examples for `halign code` and warning at `halign` (issue #361)
- Macro `\renewthetcbcounter` to allow redefinition of `\thetcbcounter`
- Alias `counter within` for `number within`
- Alias `counter within from` for `number within from`
- Library `theorems`:
     - Options `ams subequations`, `ams subequations upper`, and `ams subequations lower` (issue #366)
     - Options `ams subequations align`, `ams subequations align upper`, and `ams subequations align lower`
     - Options `ams subequations gather`, `ams subequations gather upper`, and `ams subequations gather lower`
- Library `documentation`:
     - More semantic description in key documentation (issue #354)
     - Options `doclang/default`, `doclang/initially`, `doclang/initiallyempty`,
         `doclang/nodefault`, `doclang/noinitially`
     - `\tcbdocdescNoDefaultInit`, `\tcbdocdescInitEmpty`, `\tcbdocdescInit`,
         `\tcbdocdescDefault`, `\tcbdocdescDefaultInitEmpty`, `\tcbdocdescDefaultInit`
     - Options `doc description no default init`, `doc description init empty`, `doc description init`,
         `doc description default`, `doc description default init empty`, `doc description default init`
     - List of choices inside `\docKeyChoices`, `doc key choices` now take options
         `default`, `init`, `defaultinit`
     - Options `doc parameter eq`, `doc parameter eq meta`, `doc parameter eq marg`,
         `doc parameter eq meta*`, `doc parameter eq marg*`
     - Options `doc parameter marg`, `doc parameter oarg`, `doc parameter marg marg`,
         `doc parameter oarg marg`, `doc parameter marg oarg`

### Changed
- Required LaTeX version bumped to 2025-06-01
- Internal code changes
- Tagging code adapted to fix https://github.com/latex3/tagging-project/issues/1114
- Implementation for numbered boxes is partially rewritten using the L3 API
- Documentation:
     Replace `minted2` with `minted` v3 for production since `minted` v3.8.0 has fixed incompatibility with Python 3.14
     (https://github.com/gpoore/minted/issues/463)
- Documentation:  Manually composed label references replaced by `\zvref` (where sensible, issue #348)

### Fixed
- Library `documentation`:
     - Add missing spaces in a `\docKeyChoices` warning (pull request #360)
     - Documentation for `index key formatter`, `index key formatters`, `page ref formatter`, `ctan formatter`
- Changelog typos corrected (pull request #359)
- `\thetcbcounter` was not completely redefined using `\counterwithout` / `\counterwithin` (issue #362)
- Code style improved with explcheck (issue #235)


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This package is located at
    https://mirrors.ctan.org/macros/latex/contrib/tcolorbox

More information is at
    https://www.ctan.org/pkg/tcolorbox

------------------------------------------------------------------------

    Thanks for the upload.

      For the CTAN Team
     Erik Braun

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