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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]
## [2019-05-07]
### Added
- `.muskip:N` property
### Changed
- Experimental `\driver_pdf_compress_objects:n` replaces
`\driver_pdf_objects_(en|dis)able:`
## [2019-05-05]
### Added
- `\char_str_<target>_case:N`
### Fixed
- Infinite loop in some cases in DVI mode due to link-breaking code
(see #570)
- Category code of output from `\char_<target>_case:N`, and
same issue in `\str_<target>_case:n`
## [2019-05-03]
### Added
- New `l3legacy` module containing
- `\legacy_if:n(TF)`
### Changed
- Moved `\file_get_mdfive_hash:nN(TF)`, `\file_get_size:nN(TF)`
and `\file_get_timestamp:nN(TF)` to stable
- Moved `\file_if_exist_input:n` and `\file_if_exist_input:nF` to stable
- Moved `\file_input_stop:` to stable
- Moved `\peek_N_type:TF` to stable
## [2019-04-21]
### Added
- Experimental support for a range of PDF concepts at the lowest
(driver abstraction) level
## [2019-04-06]
### Changed
- Moved `\tl_if_single_token:n(TF)` to stable
### Fixed
- Support for ConTeXt from mid-December 2018
## [2019-03-26]
### Fixed
- Loading when pre-TL'18 XeTeX is in use (see #555)
## [2019-03-05]
### Added
- `\str_log:n`, `\str_log:N`
- `TF` versions for `\file_get_...:nN` and `\ior_(str_)get:NN` functions
- `\cs_prefix_spec:N`, `\cs_argument_spec:N`, `\cs_replacement_spec:N`
- `undo-recent-deprecations` option
- `factorial` function in `l3fp`
### Changed
- Return values from `\file_get:nnN`, `\file_get_...:nN`, `\ior_get:NN`,
`\sys_shell_get:nnN`
- Moved coffin affine transformations to stable
- Moved `\prop_count:N` to stable
- Moved `\tl_count_tokens:n` to stable
- Completed emulation of e-type argument when `\expanded` is unavailable
- Made expandable messages expand their result, like usual messages
- Made deprecation errors less intrusive by default
- Stopped providing do-nothing `\color` macro when undefined
### Deprecated
- `\token_get_prefix_spec:N`, `\token_get_arg_spec:N`,
`\token_get_replacement_spec:N` replaced by `\cs_prefix_spec:N`,
`\cs_argument_spec:N`, `\cs_replacement_spec:N`, respectively
### Fixed
- Treatment of inherited keys when setting only known keys (see #548)
### Removed
- Experimental `\skip_split_finite_else_action:nnNN`
- Experimental `\tl_reverse_tokens:n`
## [2019-02-15]
### Changed
- Defensive code for redefinition of `\time`, `\day`, `\month` and `\year`
### Fixed
- Resetting of key inheritance (see #535)
- Issue in deprecated command `\tl_set_from_file:Nnn`
(see https://tex.stackexchange.com/q/474813/)
## [2019-02-03]
### Added
- Support for return of whole path by `\keys_set_known:nnN`-like
function `\keys_set_known:nnnN` (see #508)
- `.prop_(g)put:N` key property (see #444)
### Fixed
- Handling of nested key setting when filtering, _etc._ (see #526)
- Inheritance of default values (see #504)
## [2019-01-28]
### Added
- Global versions of box affine functions, e.g. `\box_grotate:Nn`
- Global versions of box size adjustment functions
- `\box_(g)set_eq_drop:NN`, `\(h|v)box_unpack_drop:N`
- `\file_get:nnN` and `\file_get:nnNTF`
- Experimental functions `\sys_shell_get:nnN` and `\sys_shell_get:nnNTF`
### Changed
- `\char_generate:nn` now always takes exactly two expansions
- Move `\prg_generate_conditional_variant:Nnn` to stable
- Renamed experimental `\box_trim:Nnnnn` and `\box_viewport:Nnnnn` as
`\box_set_trim:Nnnnn` and `\box_set_viewport:Nnnnn`, respectively
### Deprecated
- `\box_(g)set_eq_clear:NN`, replaced by `\box_(g)set_eq_drop:NN`
- `\(h|v)box_unpack_clear:N`, replaced by `\(h|v)box_unpack_drop:N
- `\tl_(g)set_from_file(_x):Nnn`, replaced by `\file_get:nnN`
### Fixed
- Scope treatment of `\box_set_dp:N`, _etc._
- In (u)platex: detection of spaces in `\tl_rescan:nn` and related functions
### Removed
- Experimental function family `\tl_(g)set_from_shell:(N|c)nn`
(replaced by `\sys_shell_get:nnN`)
## [2019-01-13]
### Added
- `\ior_map_variable:NNn` and `\ior_str_map_variable:NNn`
### Fixed
- Unclosed conditional with Unicode engines
## [2019-01-12]
### Changed
- Improved `expl3` loading time with LuaTeX and XeTeX
- Improved performance of `\ior_map_inline:Nn` and related functions
### Fixed
- Handling of accented characters under mixed case changing in 8-bit engines
(see #514)
## [2019-01-01]
### Added
- `\iow_allow_break:`
### Fixed
- Correct fp randint with zero argument (see #507)
- Handling of `\current@color` with (x)dvipdfmx` (see #510)
### Removed
- Support for stand-alone `l3regex`, `l3sort`, `l3srt`, `l3tl-analysis`,
`l3tl-build`
- `\box_resize:Nnn`
- `\box_use_clear:N`
- `\c_minus_one`
- `\file_add_path:nN`
- `\file_list:`
- `\file_path_include:n` and `\file_path_remove:n`
- `\io(r|w)_list_streams:` and `\io(r|w)_log_streams:`
- `\sort_ordered:` and `\sort_reversed:`
- `\token_new:Nn`
- Generation of invalid variants from `n`/`N` base types
## [2018-12-12]
### Changed
- Move `\tl_range:nnn` to stable
### Fixed
- Loading in ConTeXt MkIV
## [2018-12-11]
### Changed
- Enable `\char_generate:nn` to create active tokens with XeTeX
## [2018-12-06]
### Changed
- Apply `\par` only at the end of vertical boxes
- Move `\int_rand:n` to stable
- Move `\<var>_rand_item:N` to stable
### Fixed
- Typo in `\lua_shipout_e:n` (see #503)
## [2018-11-19]
### Added
- Support for cross-compatibility primitives in XeTeX
- `\int_sign:n`, `\dim_sign:n` and `\fp_sign:n`
## [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
- `\msg_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/2019-05-07...HEAD
[2019-05-07]: https://github.com/latex3/latex3/compare/2019-05-05...2019-05-07
[2019-05-05]: https://github.com/latex3/latex3/compare/2019-05-03...2019-05-05
[2019-05-03]: https://github.com/latex3/latex3/compare/2019-04-21...2019-05-03
[2019-04-21]: https://github.com/latex3/latex3/compare/2019-04-06...2019-04-21
[2019-04-06]: https://github.com/latex3/latex3/compare/2019-03-26...2019-04-06
[2019-03-26]: https://github.com/latex3/latex3/compare/2019-03-05...2019-03-26
[2019-03-05]: https://github.com/latex3/latex3/compare/2019-02-15...2019-03-05
[2019-02-15]: https://github.com/latex3/latex3/compare/2019-02-03...2019-02-15
[2019-02-03]: https://github.com/latex3/latex3/compare/2019-01-28...2019-02-03
[2019-01-28]: https://github.com/latex3/latex3/compare/2019-01-13...2019-01-28
[2019-01-13]: https://github.com/latex3/latex3/compare/2019-01-12...2019-01-13
[2019-01-12]: https://github.com/latex3/latex3/compare/2019-01-01...2019-01-12
[2019-01-01]: https://github.com/latex3/latex3/compare/2018-12-12...2019-01-01
[2018-12-12]: https://github.com/latex3/latex3/compare/2018-12-11...2018-12-12
[2018-12-11]: https://github.com/latex3/latex3/compare/2018-12-06...2018-12-11
[2018-12-06]: https://github.com/latex3/latex3/compare/2018-11-19...2018-12-06
[2018-11-19]: https://github.com/latex3/latex3/compare/2018-10-31...2018-11-19
[2018-10-31]: https://github.com/latex3/latex3/compare/2018-10-26...2018-10-31
[2018-10-26]: https://github.com/latex3/latex3/compare/2018-10-19...2018-10-26
[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
|