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# Changelog
All notable changes to the `l3kernel` bundle since the start of 2018
will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
this project uses date-based 'snapshot' version identifiers.
## [Unreleased]
## [2018-10-19]
### Fixed
- Wrapping of text in messages, etc., for some line lengths (fixes #491)
## [2018-10-17]
### Added
- `\g_msg_module_documentation_prop` (see #471)
- `\peek_remove_spaces:n`
### Changed
- Formatting of messages: now follows LaTeX2e closely
### Deprecated
- `\mg_interrupt:nn`, `\msg_log:n` and `\msg_term:n`
### Fixed
- Handling of inheritance for choice keys (fixes #483)
## [2018-09-24]
### Added
- Some driver-level support for PDF features
- `\peek_catcode_collect_inline:Nn`, `\peek_charcode_collect_inline:Nn`,
`\peek_meaning_collect_inline:Nn`
### Fixed
- Handling of unknown keys when inheritance is active (fixes #481)
## [2018-08-23]
### Added
- `\lua_escape:e`, `\lua_now:e` and `\lua_shipout_e:n`
- `\str_case_e:nn(TF)` and `\str_if_eq:ee(TF)`
- `\sys_if_platform_unix:(TF)` and `\sys_if_platform_windows:(TF)`
- `\tl_(g)set_from_shell:Nnn`
### Deprecated
- `\lua_escape_x:n`, `\lua_now_x:n` and `\lua_shipout_x:n`
- `\str_case_x:nn(TF)` and `\str_if_eq_x:nn(TF)`
## [2018-06-14]
### Added
- Support for `e`-type argument using `\expanded` or macro emulation
## [2018-06-01]
### Added
- `CHANGELOG.md` (fixes #460)
### Fixed
- Loading `expl3` with LuaTeX/XeTeX and certain letter tokens set
to be active (see #462)
### Changed
- Alter `\char_codepoint_from_bytes:n` to produce four groups in all
cases; make `f`-type expandable
## [2018-05-13]
### Fixed
- Correct date string in `expl3.dtx`
- Correct `\c_sys_engine_version_str` when using XeTeX
## [2018-05-12]
### Added
- Define `\c_zero_int` and `\c_one_int`
- Implement `\c_sys_engine_version_str`
- Implement `\seq_indexed_map_function/inline`
- Implement `\intarray_gzero:N`
- Implement `\intarray_const_from_clist:Nn`
- Implement `\bool_set_inverse:N`
- Implement `\bool_xor:nnTF` instead of just `\bool_xor_p:nn`
- Implement candidate `\int_rand:n`
- Implement `\intarray_gset_rand:Nnn`
- Implement candidate `l3fparray` module
## Changed
- Update minimal required versions of XeTeX and LuaTeX
- Deprecate named integer constants `\c_zero`. etc.
- Move all primitives to `\tex_...:D namespace`,
deprecating older engine-dependent prefixes
- Several internal optimisations
### Fixed
- Expand boolean expression before calling `\chardef` (fixes #461)
### Removed
- Remove undocumented `\fp_function:Nw` and `\fp_new_function:Npn`
## [2018-04-30]
### Added
- Implement \tl_analysis_map_inline:nn
- Implement \exp_args_generate:n to define new \exp_args:N...
functions
- Low-level \int_value:w function
- New experimental functions for
- Building token lists piecewise
- Fast manipulation of integer arrays
- Sequence shuffling
- `\seq_set_from_function:NnN`
- `\char_codepoint_to_bytes:n`
### Changed
- Significant internal revision to use only internal functions
'private' to specific modules
- Better documentation of cross-module kernel-internal functions
- Enable `\char_generate:nn` for active chars
- Renamed `\tl_show_analysis:(N|n)n` as `\tl_analysis_show:(N|n)n`
- Change \int_rand:nn (and rand_item functions) to better use
the RNG
- Make prg break functions public
- Make scan marks mechanism public
- Make `\prg_do_nothing:` long rather than nopar (fixes #455)
- Several performance improvements
- Documentation improvements
### Fixed
- Only index TF, T, F functions together if they are `expl3`
functions (fixes #453)
- Make `\infty` and `\pi` into errors in fp expressions
(fixes #357)
### Removed
- Deprecated functions expiring at end of 2017
- Old module `.sty` files
## [2018-03-05]
### Changes
- Adjustments to `l3drivers` to support `l3draw` development in
`l3experimental` bundle
## [2018-02-21]
### Added
- Tuple support in fp expressions
- Step functions have been added for dim variables,
e.g. `\dim_step_inline:nnnn`
[Unreleased]: https://github.com/latex3/latex3/compare/2018-10-19...HEAD
[2018-10-19]: https://github.com/latex3/latex3/compare/2018-10-17...2018-10-19
[2018-10-17]: https://github.com/latex3/latex3/compare/2018-09-24...2018-10-17
[2018-09-24]: https://github.com/latex3/latex3/compare/2018-08-23...2018-09-24
[2018-08-23]: https://github.com/latex3/latex3/compare/2018-06-14...2018-08-23
[2018-06-14]: https://github.com/latex3/latex3/compare/2018-06-01...2018-06-14
[2018-06-01]: https://github.com/latex3/latex3/compare/2018-05-13...2018-06-01
[2018-05-13]: https://github.com/latex3/latex3/compare/2018-05-12...2018-05-13
[2018-05-12]: https://github.com/latex3/latex3/compare/2018-04-30...2018-05-12
[2018-04-30]: https://github.com/latex3/latex3/compare/2018-03-05...2018-04-30
[2018-03-05]: https://github.com/latex3/latex3/compare/2018-02-21...2018-03-05
[2018-02-21]: https://github.com/latex3/latex3/compare/2017-12-16...2018-02-21
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