The LaTeX Team submitted an update to the

l3kernel

package.

Version: 2021-05-07 License: lppl1.3c

Summary description: LaTeX3 programming conventions

Announcement text: ----------------------------------------------------------------------

## [2021-05-07]

### Added - Color export in comma-separated format - `ur{...}` escape in `l3regex` to compose regexes - `seq_set_split_keep_spaces:Nnn` (see #784) - `seq_set_item:Nnn(TF)` and `seq_pop_item:NnN(TF)` - `ox_ht_plus_dp:N` (issue #899) - `clist_map_tokens:nn`, `clist_map_tokens:Nn`, `str_map_tokens:nn`, `str_map_tokens:Nn`

### Changed - Use prevailing catcodes instead of string in regex replacement (issue #621) (*Breaking change*) - `__kernel_file_name_sanitize:n` now uses a faster `csname`-based approach to expand the file name - Improved performance for basic conditionals - `pdf_version_gset:n` support for `dvips` - Improve handling of `exp_not:n` in ` ext_expand:n` (issue #875) - `file_full_name:n` now avoids calling `pdffilesize` primitive multiple times on the same file - Show printable characters explicitly in ` egex_show:n` - Regex replacement now errors when using a submatch (`1` etc) for which the regex has too few groups - Showing complex datatypes now validates their internal structure (issue #884) - Indexing in l3doc: all page references before codeline references, improve target placement, solve pdfTeX and makeindex warnings

### Fixed - Evalutate INT constants only once (issue #861) - Detect `ior_map_inline:Nn` calls on undefined streams (issue #194)

### Deprecated - `l3docstrip` converted to a stub which simply loads DocStrip: use the latter directly

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The package’s Catalogue entry can be viewed at https://ctan.org/pkg/l3kernel

The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/l3kernel/

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Thanks for the upload.

For the CTAN Team Petra Rübe-Pugliese

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