neovim/runtime/doc/news.txt
Evgeni Chasnovski 64a14026d7
feat(highlight): update default color scheme
Problem: Default color scheme is suboptimal.

Solution: Start using new color scheme. Introduce new `vim` color scheme
for opt-in backward compatibility.

------
Main design ideas
- Be "Neovim branded".
- Be minimal for 256 colors with a bit more shades for true colors.
- Be accessible through high enough contrast ratios.
- Be suitable for dark and light backgrounds via exchange of dark and
  light palettes.

------
Palettes

- Have dark and light variants. Implemented through exporeted
  `NvimDark*` and `NvimLight*` hex colors.

- Palettes have 4 shades of grey for UI elements and 6 colors (red,
  yellow, green, cyan, blue, magenta).

- Actual values are computed procedurally in Oklch color space based on
  a handful of hyperparameters.

- Each color has a 256 colors variant with perceptually closest color.

------
Highlight groups

Use:

- Grey shades for general UI according to their design.

- Bold text for keywords (`Statement` highlight group). This is an
  important choice to increase accessibility for people with color
  deficiencies, as it doesn't rely on actual color.

- Green for strings, `DiffAdd` (as background), `DiagnosticOk`, and some
  minor text UI elements.

- Cyan as main syntax color, i.e. for function usage (`Function`
  highlight group), `DiffText`, `DiagnosticInfo`, and some minor text UI
  elements.

- Red to generally mean high user attention, i.e. errors; in particular
  for `ErrorMsg`, `DiffDelete`, `DiagnosticError`.

- Yellow very sparingly only with true colors to mean mild user
  attention, i.e. warnings. That is, `DiagnosticWarn` and `WarningMsg`.

- Blue very sparingly only with true colors as `DiagnosticHint` and some
  additional important syntax group (like `Identifier`).

- Magenta very carefully (if at all).

------
Notes

- To make tests work without relatively larege updates, each one is
  prepended with an equivalent of the call `:colorscheme vim`.

  Plus some tests which spawn new Neovim instances also now use 'vim'
  color scheme.

  In some cases tests are updated to fit new default color scheme.
2023-12-02 18:53:19 +02:00

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*news.txt* Nvim
NVIM REFERENCE MANUAL
Notable changes in Nvim 0.10 from 0.9 *news*
For changes in Nvim 0.9, see |news-0.9|.
Type |gO| to see the table of contents.
==============================================================================
BREAKING CHANGES *news-breaking*
The following changes may require adaptations in user config or plugins.
• In some cases, the cursor in the Nvim |TUI| would blink even without
configuring 'guicursor' as mentioned in |cursor-blinking|. This was a bug
that has now been fixed. If your cursor has stopped blinking, add the
following (or similar, adapted to user preference) to your |config| file: >vim
set guicursor+=n-v-c:blinkon500-blinkoff500
<
• |vim.tbl_islist()| now checks whether a table is actually list-like (i.e.,
has integer keys without gaps and starting from 1). For the previous
behavior (only check for integer keys, allow gaps or not starting with 1),
use |vim.tbl_isarray()|.
• "#" followed by a digit no longer stands for a function key at the start of
the lhs of a mapping.
• `:behave` was removed.
- If you used `:behave xterm`, the following is equivalent: >vim
set mousemodel=extend
<
- If you used `:behave mswin`, the following is equivalent: >vim
set selection=exclusive
set selectmode=mouse,key
set mousemodel=popup
set keymodel=startsel,stopsel
<
• When switching windows, |CursorMoved| autocommands trigger when Nvim is back
in the main loop rather than immediately. This is more compatible with Vim.
• |-l| ensures output ends with a newline if the script prints messages and
doesn't cause Nvim to exit.
• |LspRequest| and LspProgressUpdate (renamed to |LspProgress|) autocmds were
promoted from a |User| autocmd to first class citizen.
• Renamed `vim.treesitter.playground` to `vim.treesitter.dev`.
• Removed functions from the |vim.json| module:
• Unnecessary, undocumented functions which caused global side-effects.
• `vim.json.null` is redundant with `vim.NIL`.
• `vim.json.array_mt` (and related) is redundant with `vim.empty_dict()`.
• Removed some Vim 5.0<= option compatibilities:
• |'backspace'| no longer supports number values. Instead:
• for `backspace=0` set `backspace=` (empty)
• for `backspace=1` set `backspace=indent,eol`
• for `backspace=2` set `backspace=indent,eol,start` (default behavior in Nvim)
• for `backspace=3` set `backspace=indent,eol,nostop`
• |'backupdir'| and |'directory'| will no longer remove a `>` at the start
of the option.
• |LanguageTree:parse()| will no longer parse injections by default and
now requires an explicit range argument to be passed. If injections are
required, provide an explicit range via `parser:parse({ start_row, end_row })`.
• Float window support hide and show by setting `hide` on `nvim_open_win` and
`nvim_win_set_config`.
• |vim.lsp.util.parse_snippet()| will now strictly follow the snippet grammar
defined by LSP, and hence previously parsed snippets might now be considered
invalid input.
• |OptionSet| autocommand args |v:option_new|, |v:option_old|,
|v:option_oldlocal|, |v:option_oldglobal| now have the type of the option
instead of always being strings. |v:option_old| is now the old global value
for all global-local options, instead of just string global-local options.
• Local value for a global-local number/boolean option is now unset when
the option is set (e.g. using |:set| or |nvim_set_option_value()|) without a
scope, which means they now behave the same way as string options.
• Signs placed through the legacy |sign-commands| are now stored and displayed
as |extmarks| internally. Along with the following changes:
• A sign placed twice in the same group with the same identifier will be moved.
• Legacy signs are always deleted along with the line it is placed on.
• Legacy and extmark signs will show up in both |:sign-place-list| and |nvim_buf_get_extmarks()|.
• Legacy and extmark signs are displayed and listed with the same priority:
line number -> priority -> sign id -> recently placed
• Default color scheme has been updated to be "Neovim branded" and accessible.
Use `:colorscheme vim` to revert to the old legacy color scheme.
==============================================================================
BREAKING CHANGES IN HEAD *news-breaking-dev*
The following breaking changes were made during the development cycle to
unreleased features on Nvim HEAD.
• ...
• ...
==============================================================================
NEW FEATURES *news-features*
The following new APIs and features were added.
• Performance:
• 'diffopt' "linematch" scoring algorithm now favours larger and less groups
https://github.com/neovim/neovim/pull/23611
• Treesitter highlighting now parses injections incrementally during
screen redraws only for the line range being rendered. This significantly
improves performance in large files with many injections.
• |vim.iter()| provides a generic iterator interface for tables and Lua
iterators |for-in|.
• Added |vim.ringbuf()| to create ring buffers.
• Added |vim.keycode()| for translating keycodes in a string.
• |'smoothscroll'| option to scroll by screen line rather than by text line
when |'wrap'| is set.
• Added inline virtual text support to |nvim_buf_set_extmark()|.
• 'foldtext' now supports virtual text format. |fold-foldtext|
• The terminal buffer now supports reflow (wrapped lines adapt when the buffer
is resized horizontally). Note: Lines that are not visible and kept in
|'scrollback'| are not reflown.
• |vim.system()| for running system commands.
• Added |nvim_win_text_height()| to compute the number of screen lines occupied
by a range of text in a given window.
• |nvim_set_keymap()| and |nvim_del_keymap()| now support abbreviations.
• Better cmdline completion for string option value. |complete-set-option|
• Builtin TUI can now recognize "super" (|<D-|) and "meta" (|<T-|) modifiers in a
terminal emulator that supports |tui-csiu|.
• Editor
• By default, the swapfile "ATTENTION" |E325| dialog is skipped if the
swapfile is owned by a running Nvim process, instead of prompting. If you
always want the swapfile dialog, delete the default SwapExists handler:
`autocmd! nvim_swapfile`. |default-autocmds|
• LSP
• LSP method names are available in |vim.lsp.protocol.Methods|.
• Implemented LSP inlay hints: |lsp-inlay_hint|
https://microsoft.github.io/language-server-protocol/specification/#textDocument_inlayHint
• Implemented pull diagnostic textDocument/diagnostic: |vim.lsp.diagnostic.on_diagnostic()|
https://microsoft.github.io/language-server-protocol/specification/#textDocument_diagnostic
• Added |vim.lsp.status()| to consume the last progress messages as a string.
• LSP client now always saves and restores named buffer marks when applying
text edits.
• LSP client now supports the `positionEncoding` server capability. If a server
responds with the `positionEncoding` capability in its initialization
response, Nvim automatically sets the client's `offset_encoding` field.
• Dynamic registration of LSP capabilities. An implication of this change is
that checking a client's `server_capabilities` is no longer a sufficient
indicator to see if a server supports a feature. Instead use
`client.supports_method(<method>)`. It considers both the dynamic
capabilities and static `server_capabilities`.
• Added a new `anchor_bias` option to |lsp-handlers| to aid in positioning of
floating windows.
• Treesitter
• Bundled parsers and queries (highlight, folds) for Markdown, Python, and
Bash.
• Added |vim.treesitter.query.omnifunc()| for treesitter query files (set by
default).
• |Query:iter_matches()| now has the ability to set the maximum start depth
for matches.
• `@injection.language` now has smarter resolution and will now fallback to language aliases and/or attempt lower case variants of the text.
language via aliases (e.g., filetype) registered via
`vim.treesitter.language.register`.
• The `#set!` directive now supports `injection.self` and `injection.parent` for injecting either the current node's language
or the parent LanguageTree's language, respectively.
• Added `vim.treesitter.query.edit()`, for live editing of treesitter
queries.
• Improved error messages for query parsing.
• Added |vim.treesitter.foldtext()| to apply treesitter highlighting to
foldtext.
• |vim.ui.open()| opens URIs using the system default handler (macOS `open`,
Windows `explorer`, Linux `xdg-open`, etc.)
• |vim.wo| can now be double indexed for |:setlocal| behaviour. Currently only
`0` for the buffer index is currently supported.
• Lua type annotations for:
• `vim.*`
• `vim.fn.*`
• `vim.api.*`
• Improved messages for type errors in `vim.api.*` calls (including `opts` params)
• Functions that take a severity as an optional parameter (e.g.
|vim.diagnostic.get()|) now also accept a list of severities |vim.diagnostic.severity|
• New RPC client type `msgpack-rpc` is added for `nvim_set_client_info` to
support fully MessagePack-RPC compliant clients.
• Floating windows can now show footer with new `footer` and `footer_pos`
config fields. Uses |hl-FloatFooter| by default.
• The |:terminal| command now accepts some |:command-modifiers| (specifically
|:horizontal| and those that affect splitting a window).
• |vim.lsp.util.locations_to_items()| sets the `user_data` of each item to the
original LSP `Location` or `LocationLink`.
• |$NVIM_APPNAME| can be set to a relative path instead of only a name.
• Added |:fclose| command.
• Added |vim.snippet| for snippet expansion support.
• 'complete' option supports "f" flag for completing buffer names.
• Added |vim.base64.encode()| and |vim.base64.decode()| for encoding and decoding
strings using Base64 encoding.
• The |TermResponse| autocommand event can be used with |v:termresponse| to
read escape sequence responses from the terminal.
• A clipboard provider which uses OSC 52 to copy the selection to the system
clipboard is now bundled by default and will be automatically enabled under
certain conditions. |clipboard-osc52|
• The 'termsync' option asks the terminal emulator to buffer screen updates
until the redraw cycle is complete. Requires support from the terminal.
• Added |vim.text.hexencode()| and |vim.text.hexdecode()| to convert strings
to and from byte representations.
==============================================================================
CHANGED FEATURES *news-changed*
The following changes to existing APIs or features add new behavior.
• |vim.tbl_contains()| now works for general tables and allows specifying a
predicate function that is checked for each value. (Use |vim.list_contains()|
for checking list-like tables (integer keys without gaps) for literal values.)
• |vim.region()| can use a string accepted by |getpos()| as position.
• vim.diagnostic.config() now accepts a function for the virtual_text.prefix
option, which allows for rendering e.g., diagnostic severities differently.
• Defaults:
• On Windows 'isfname' does not include ":". Drive letters are handled
correctly without it. (Use |gF| for filepaths suffixed with ":line:col").
• 'comments' includes "fb:•".
• 'shortmess' includes the "C" flag.
• Automatic linting of treesitter query files (see |ft-query-plugin|).
Can be disabled via: >lua
vim.g.query_lint_on = {}
<
• Enabled treesitter highlighting for treesitter query files.
• The `workspace/didChangeWatchedFiles` LSP client capability is now enabled
by default.
• |LspRequest| autocmd callbacks now contain additional information about the LSP
request status update that occurred.
• `:source` without arguments treats a buffer with its 'filetype' set to "lua"
as Lua code regardless of its extension.
• |:checkhealth| buffer now implements |folding|. The initial folding status is
defined by the 'foldenable' option.
• |:Man| now respects 'wrapmargin'
• |gx| now uses |vim.ui.open()| and not netrw. To customize, you can redefine
`vim.ui.open` or remap `gx`. To continue using netrw (deprecated): >vim
:call netrw#BrowseX(expand(exists("g:netrw_gx")? g:netrw_gx : '<cfile>'), netrw#CheckIfRemote())<CR>
• |vim.lsp.start()| now maps |K| to use |vim.lsp.buf.hover()| if the server
supports it, unless |'keywordprg'| was customized before calling
|vim.lsp.start()|.
• Terminal buffers started with no arguments (and use 'shell') close
automatically if the job exited without error, eliminating the (often
unwanted) "[Process exited 0]" message.
• |vim.diagnostic.config()| now accepts virtual text relevant options to
|nvim_buf_set_extmark()| (e.g. "virt_text_pos" and "hl_mode") in its
"virtual_text" table, which gives users more control over how diagnostic
virtual text is displayed.
• Extmarks now fully support multi-line ranges, and a single extmark can be
used to highlight a range of arbitrary length. The |nvim_buf_set_extmark()|
API function already allowed you to define such ranges, but highlight regions
were not rendered consistently for a range that covers more than one line break.
This has now been fixed. Signs defined as part of a multi-line extmark also
apply to every line in the range, not just the first.
In addition, |nvim_buf_get_extmarks()| has gained an "overlap" option to
return such ranges even if they started before the specified position.
• Extmarks can opt-out of precise undo tracking using the new "undo_restore"
flag to |nvim_buf_set_extmark()|
• Extmarks can be automatically hidden or removed using the new "invalidate"
flag to |nvim_buf_set_extmark()|
• LSP hover and signature help now use Treesitter for highlighting of Markdown
content.
Note that syntax highlighting of code examples requires a matching parser
and may be affected by custom queries.
• Support for rendering multibyte characters using composing characters has been
enhanced. The maximum limit have been increased from 1+6 codepoints to
31 bytes, which is guaranteed to fit all chars from before but often more.
NOTE: the regexp engine still has a hard-coded limit of considering
6 composing chars only.
• |vim.wait()| is no longer allowed to be called in |api-fast|.
==============================================================================
REMOVED FEATURES *news-removed*
The following deprecated functions or APIs were removed.
• Vimball support is removed.
- :Vimuntar command removed.
• Support for legacy treesitter injection queries is removed.
• Removed 'shortmess' flags:
- |shm-f|. Always uses "(3 of 5)", never "(file 3 of 5)"
- |shm-i|. Always use "[noeol]".
- |shm-x|. Always use "[dos]", "[unix]" and "[mac]"
- |shm-n|. Always use "[New]".
==============================================================================
DEPRECATIONS *news-deprecations*
The following functions are now deprecated and will be removed in a future
release.
• Checkhealth functions:
- |health#report_error|, |vim.health.report_error()| Use |vim.health.error()| instead.
- |health#report_info|, |vim.health.report_info()| Use |vim.health.info()| instead.
- |health#report_ok|, |vim.health.report_ok()| Use |vim.health.ok()| instead.
- |health#report_start|, |vim.health.report_start()| Use |vim.health.start()| instead.
- |health#report_warn|, |vim.health.report_warn()| Use |vim.health.warn()| instead.
• |API| functions:
- |nvim_buf_get_option()| Use |nvim_get_option_value()| instead.
- |nvim_buf_set_option()| Use |nvim_set_option_value()| instead.
- |nvim_get_option()| Use |nvim_get_option_value()| instead.
- |nvim_set_option()| Use |nvim_set_option_value()| instead.
- |nvim_win_get_option()| Use |nvim_get_option_value()| instead.
- |nvim_win_set_option()| Use |nvim_set_option_value()| instead.
• vim.lsp functions:
- |vim.lsp.util.get_progress_messages()| Use |vim.lsp.status()| instead.
- |vim.lsp.get_active_clients()| Use |vim.lsp.get_clients()| instead.
- |vim.lsp.for_each_buffer_client()| Use |vim.lsp.get_clients()| instead.
- |vim.lsp.util.trim_empty_lines()| Use |vim.split()| with `trimempty` instead.
- |vim.lsp.util.try_trim_markdown_code_blocks()|
- |vim.lsp.util.set_lines()|
- |vim.lsp.util.extract_completion_items()|
- |vim.lsp.util.parse_snippet()|
- |vim.lsp.util.text_document_completion_list_to_complete_items()|
• `vim.loop` has been renamed to `vim.uv`.
• vim.treesitter.languagetree functions:
- |LanguageTree:for_each_child()| Use |LanguageTree:children()| (non-recursive) instead.
• The "term_background" UI option |ui-ext-options| is deprecated and no longer
populated. Background color detection is now performed in Lua by the Nvim
core, not the TUI.
vim:tw=78:ts=8:sw=2:et:ft=help:norl: