* Fonts: `font_antialias` and `font_hinting` are now deprecated in favor of the new [freetype_load_target](config/lua/config/freetype_load_target.md) and [freetype_load_flags](config/lua/config/freetype_load_flags.md) options. The deprecated options have no effect and will be removed in a future release. The new options provide more direct control over how freetype rasterizes text.
* Fonts: when computing default `font_rules` for bold and italic fonts, strip italic and bold components from the family name. eg: if you set `font = wezterm.font("Source Code Pro Medium")` then the ` Medium` text will be stripped from the font name used to locate bold and italic variants so that we don't report an error loading a non-sensical `Source Code Pro Medium Bold`. [#456](https://github.com/wez/wezterm/issues/456)
* Fonts: fix a regression where bright windows behind wezterm could "shine through" on the alpha channel, and adjust the tinting operation to avoid anti-aliased dark fringes [#470](https://github.com/wez/wezterm/issues/470) [#491](https://github.com/wez/wezterm/issues/491)
* Added `--config-file` CLI option to specify an alternate config file location. [Read more about config file resolution](config/files.md). Thanks to [@bew](https://github.com/bew)! [#459](https://github.com/wez/wezterm/pull/459)
* Fixed an issue where the window would be redrawn on mouse move. This was most noticeable as a laggy mouse pointer when moving the mouse across a window running on the nouveau display driver on X11 and Wayland systems
* Wayland: the raw key modifiers are now correctly propagated so that they activate when used with key assignments using the `key = "raw:123"` binding syntax.
* Fixed an issue where closing a pane would immediately `SIGKILL` the associated process, rather than sending `SIGHUP`. Thanks to [@bew](https://github.com/bew)!
* Search Mode: Added `CTRL-u` key assignment to clear the current search pattern. Thanks to [@bew](https://github.com/bew)! [#465](https://github.com/wez/wezterm/pull/465)
* New: OSC 777 and OSC 9 escapes now generate Toast Notifications. `printf "\e]777;notify;%s;%s\e\\" "title" "body"` and `printf "\e]9;%s\e\\" "hello there"`. These don't currently pass through multiplexer connections. [#489](https://github.com/wez/wezterm/issues/489).
* Windows: Fixed [ToggleFullScreen](config/lua/keyassignment/ToggleFullScreen.md) so that it once again toggles between full screen and normal placement. [#177](https://github.com/wez/wezterm/issues/177)
* New: [exit_behavior](config/lua/config/exit_behavior.md) config option to keep panes open after the program has completed. [#499](https://github.com/wez/wezterm/issues/499)
* New: added `--config name=value` options to `wezterm`, `wezterm-gui` and `wezterm-mux-server`. The `--front-end`, `--font-locator`, `--font-rasterizer` and `--font-shaper` CLI options have been removed in favor of this new mechanism.
* New: [window:set_config_overrides](config/lua/window/set_config_overrides.md) method that can be used to override GUI related configuration options on a per-window basis. Click through to see examples of dynamically toggling ligatures and window opacity. [#469](https://github.com/wez/wezterm/issues/469) [#329](https://github.com/wez/wezterm/issues/329)
* New: introduced [custom_block_glyphs](config/lua/config/custom_block_glyphs.md) option to ensure that block glyphs don't have gaps. [#433](https://github.com/wez/wezterm/issues/433)
* Fix cursor position after using iTerm2 image protocol [#317](https://github.com/wez/wezterm/issues/317)
* Fix pixel dimensions after changing the pane size; this was mostly invisible but impacted image scaling when using sixel or iTerm2 image protocols. [#312](https://github.com/wez/wezterm/issues/312)
* Add support for OSC 133 which allows annotating output as `Output`, `Input` (that you typed) and `Prompt` (shell "chrome"). [Learn more about Semantic prompt and OSC 133](https://gitlab.freedesktop.org/Per_Bothner/specifications/blob/master/proposals/semantic-prompts.md)
* Add [`ScrollToPrompt`](config/lua/keyassignment/ScrollToPrompt.md) key assignment that scrolls the viewport to the prior/next shell prompt emitted using OSC 133 Semantic Prompt escapes. This assignment is not bound by default.
* Added `wezterm start --class CLASSNAME` option to specify the window class name under X11 and Windows, or the `app_id` under Wayland. See `wezterm start --help` for more information.
* Added shell integration for setting OSC 7 (working directory) and OSC 133 (semantic zones) for Zsh and Bash. [See Shell Integration docs](shell-integration.md).
* Added `SemanticZone` as a possible parameter for [SelectTextAtMouseCursor](config/lua/keyassignment/SelectTextAtMouseCursor.md), making it possible to conveniently select complete input or output regions.
* Improved font rendering [#320](https://github.com/wez/wezterm/issues/320) [#331](https://github.com/wez/wezterm/issues/331) [#413](https://github.com/wez/wezterm/issues/413) and changed `font_antialias = "Greyscale"` by default.
* Added `allow_square_glyphs_to_overflow_width = "WhenFollowedBySpace"` option to allow square symbol glyphs to deliberately overflow their specified cell width when the next cell is a space. Can be set to `Always` to allow overflowing regardless of the next cell being a space, or `Never` to strictly respect the cell width. The default is `Never`. [#342](https://github.com/wez/wezterm/issues/342)
* Workaround Cocoa leaking window position saved state file descriptors to child processes on macOS Big Sur, and Gnome/Mutter doing something similar under X11
* New: added `line_height` configuration option to scale the computed cell height. The default is `1.0`, resulting in using the font-specified metrics. Setting it to `1.2` will result in a 20% larger cell height.
* macOS: Fixed an issue where hovering over the split between panes could result in wezterm becoming unresponsive [#391](https://github.com/wez/wezterm/issues/391)
* Closing windows and `QuitApplication` will now prompt for confirmation before proceeding with the close/quit. Added `window_close_confirmation` to control this; valid values are `AlwaysPrompt` and `NeverPrompt`. [#280](https://github.com/wez/wezterm/issues/280)
* Tidied up logging. Previously ERROR level logging was used to make sure that informational things showed up in the stderr stream. Now we use INFO level logging for this to avoid alarming the user. You can set `WEZTERM_LOG=trace` in the environment to get more verbose logging for troubleshooting purposes.
* X11: fix an issue where keys that produce unicode characters retained SHIFT as a modifier instead of normalizing it away. [#394](https://github.com/wez/wezterm/issues/394)
* Tweaked mouse selection: we now round the x-coordinate to the nearest cell which makes it a bit more forgiving if the mouse cursor is slightly to the left of the intended cell start. [#350](https://github.com/wez/wezterm/issues/350)
* Added `selection_word_boundary` option to control double-click word selection boundaries. The default is <tt> \t\n{}\[\]()\"'\`</tt>. [#405](https://github.com/wez/wezterm/issues/405)
* Added support for Curly, Dotted and Dashed underlines. See [this documentation](faq.html#how-do-i-enable-undercurl-curly-underlines) on the escape sequences how enable undercurl support in vim and nvim. [#415](https://github.com/wez/wezterm/issues/415)
* Fixed an issue where wezterm would spawn processes with `umask 077` on unix systems, rather than the more commonly expected `umask 022`. [#416](https://github.com/wez/wezterm/issues/416)
* Fixed an issue where the mouse wheel wasn't mapped to cursor up/down when the alternate screen was active [#429](https://github.com/wez/wezterm/issues/429)
* Fixed `ToggleFullScreen` not working on macOS and X11. It still doesn't function on Windows. `native_macos_fullscreen_mode = false` uses a fast full-screen window on macOS. Set it to `true` to use the slower macOS native "Spaces" style fullscreen mode. [#177](https://github.com/wez/wezterm/issues/177)
* Windows: fix an issue where the initial window size didn't factor the correct DPI when the system-wide display scaling was not 100%. [#427](https://github.com/wez/wezterm/issues/427)
* New: `adjust_window_size_when_changing_font_size` option to control whether changing the font size adjusts the dimensions of the window (true) or adjusts the number of terminal rows/columns (false). The default is `true`. [#431](https://github.com/wez/wezterm/issues/431)
* macOS: we no longer use MetalANGLE to render the gui; it was short lived as macOS Big Sur now uses Metal in its CGL implementation. Support for using MetalANGLE is still present if the dylib is found on startup, but we no longer ship the dylib.
* Windows: when pasting text, ensure that the text has CRLF line endings unless bracketed paste is enabled. This imperfect heuristic helps to keep multi-line pastes on multiple lines when using Windows console applications and to avoid interleaved blank lines when using unix applications. [#411](https://github.com/wez/wezterm/issues/411)
* New: [ClearScrollback](config/lua/keyassignment/ClearScrollback.html) now accepts a parameter to control whether the viewport is cleared along with the scrollback. Thanks to [@dfrankland](https://github.com/dfrankland)!
* New: [default_cwd](config/lua/config/default_cwd.html) to specify an alternative current working directory. Thanks to [@dfrankland](https://github.com/dfrankland)!
* New: [CopyTo](config/lua/keyassignment/CopyTo.md) and [PasteFrom](config/lua/keyassignment/PasteFrom.md) actions. [Copy](config/lua/keyassignment/Copy.md), [Paste](config/lua/keyassignment/Paste.md) and [PastePrimarySelection](config/lua/keyassignment/PastePrimarySelection.md) are now deprecated in favor of these new options.
* X11: Mouse-based selection now copies-to and pastes-from the `PrimarySelection` by default. The [CompleteSelection](config/lua/keyassignment/CompleteSelection.md) and [CompleteSelectionOrOpenLinkAtMouseCursor](config/lua/keyassignment/CompleteSelectionOrOpenLinkAtMouseCursor.md) actions now require a parameter to specify the clipboard.
* X11: `SHIFT-CTRL-C` and `SHIFT-CTRL-V` now copy-to and paste from the `Clipboard` by default. `SHIFT-Insert` pastes from the `PrimarySelection` by default.
* New: Added a new default `CTRL-Insert` key assignment bound to `CopyTo(PrimarySelection)`
* macOS: Windows now have drop-shadows when they are opaque. These were disabled due transparency support was added. Thanks to [Rice](https://github.com/fanzeyi)! [#445](https://github.com/wez/wezterm/pull/445)
* Unix: adjust font-config patterns to also match "dual spacing" fonts such as [Iosevka Term](https://typeof.net/Iosevka/). Thanks to [Leiser](https://github.com/leiserfg)! [#446](https://github.com/wez/wezterm/pull/446)
* New: Added [alternate_buffer_wheel_scroll_speed](config/lua/config/alternate_buffer_wheel_scroll_speed.md) option to control how many cursor key presses are generated by the mouse wheel when the alternate screen is active. The new default for this is a faster-than-previous-releases 3 lines per wheel tick. [#432](https://github.com/wez/wezterm/issues/432)
* macOS: Dead Keys are now processed even when `use_ime=false`. [More details in the docs](config/keys.md#macos-left-and-right-option-key). [#410](https://github.com/wez/wezterm/issues/410).
* We now accept `rgb:XX/XX/XX` color syntax for OSC 4 and related escape
sequences; previously only `#XXXXXX` and named colors were accepted.
* We now accept OSC 104 to reset custom colors to their defaults.
* Added Tab Navigator overlay for folks that hoard tabs; it presents
an interactive UI for selecting and activating a tab from a vertically
oriented list. This is bound to `Alt-9` by default.
* Added support for DEC Origin Mode (`DECOM`) which improves cursor positioning
with some applications
* Added support for DEC AutoWrap Mode (`DECAWM`) which was previously always on.
This improves rendering for applications that explicitly disable it.
* We now show a connection status window while establishing MUX and SSH connections.
The status window is also where any interactive authentication is carried out
for eg: SSH sessions.
* Improved SSH authentication handling; we now give you a few opportunities to
authenticate and are now able to successfully authenticate with sites that
have configured 2-Factor authentication in their server side SSH configuration.
* Fixed an issue where SHIFT-Space would swallow the space key.
* Nightly builds are now available for Linux in [AppImage](https://github.com/wez/wezterm/releases/download/nightly/WezTerm-nightly.AppImage) format.
* Shift+Left Mouse button can now be used to extend the selection to the clicked location. This is particularly helpful when you want to select something that is larger than the viewport.
* Windows: a single mouse wheel tick now scrolls by the number of positions configured in the Windows system settings (default 3)
* Windows: fixed IME position when the tab bar is enabled
* Windows: removed support for WinPty, which was too difficult to obtain, configure and use.
* Configuration errors now show in a separate window on startup, or when the configuration is reloaded
* Improved reliability and performance of MUX sessions, although they still have room for further improvement
* The OSC 7 (CurrentWorkingDirectory) escape sequence is now supported; wezterm records the cwd in a tab and that will be used to set the working directory when spawning new tabs in the same domain. You will need to configure your shell to emit OSC 7 when appropriate.
The multiplexer will now raise an error if the client and server are incompatible.
* Fixed an issue where wezterm would linger for a few seconds after the last tab was closed
* Fixed an issue where wezterm wouldn't repaint the screen after a tab was closed
* Clicking the OS window close button in the titlebar now closes the window rather than the active tab
* Added `use_ime` option to optionally disable the use of the IME on macOS. You might consider enabling this if you don't like the way that the IME swallows key repeats for some keys.
* Fix an [issue](https://github.com/knsd/daemonize/pull/39) where the pidfile would leak into child processes and block restarting the mux server
* Fix an issue where the title bars of remote tabs were not picked up at domain attach time
* Fixed selection and scrollbar position for multiplexer tabs
* Added `ScrollByPage` key assignment and moved the `SHIFT+PageUp` handling up to the
gui layer so that it can be rebound.
* X11: a single mouse wheel tick now scrolls by 5 rows rather than 1
* Wayland: normalize line endings to unix line endings when pasting
* Windows: fixed handling of focus related messages, which impacted both the appearance of
the text cursor and copy and paste handling.
* When hovering over implicitly hyperlinked items, we no longer show the underline for every other URL with the same destination
font_hinting = "Full" # None, Vertical, VerticalSubpixel, Full
```
* Early startup errors now generate a "toast" notification, giving you more of a clue about what went wrong
* We now use the default configuration if the config file had errors, rather than refusing to start
* Wayland compositors: Improved detection of display scaling on startup
* Added `harfuzz_features` option to specify stylistic sets for fonts such as Fira Code, and to control various typographical options
* Added a `window_padding` config section to add padding to the window display
* We now respect [DECSCUSR and DECTCEM](https://github.com/wez/wezterm/issues/7) escape sequence to select between hidden, block, underline and bar cursor types, as well as blinking cursors. New configuration options have been added to control the appearance and blink rate.
* We now support an optional basic scroll bar. The scroll bar occupies the right window padding and has a configurable color. Scroll bars are not yet supported for multiplexer connections and remain disabled by default for the moment.
