wezterm/docs/changelog.md

Changes

Releases are named using the date, time and git commit hash.

Continuous/Nightly

A bleeding edge build is produced continually (as commits are made, and at least a daily scheduled build) from the main branch. It may not be usable and the feature set may change, but since @wez uses this as a daily driver, its usually the best available version.

As features stabilize some brief notes about them will accumulate here.

New

• background option for rich background compositing and parallax scrolling effects.
• Added docs for the cli
• New wezterm.mux module, gui-startup and mux-startup events for spawning programs into your preferred arrangement when wezterm starts. #674
• ssh client now supports BindAddress. Thanks to @gpanders! #1875
• PaneInformation.domain_name and pane:get_domain_name() which return the name of the domain with which a pane is associated. #1881
• You may now use CTRL-n and CTRL-p (in addition to the up/down arrow and vi motion keys) to change the selected row in the Launcher. Thanks to @Junnplus! #1880
• Attaching multiplexer domains now attaches the first window as a tab in the active window, rather than opening a new window. #1874
• AttachDomain and DetachDomain key assignments
• Specifying a domain name in a SpawnCommand will cause that domain to be attached if it is in the detached state. This is useful when combined with SwitchToWorkspace.
• X11: wezterm now sets _NET_WM_NAME in addition to WM_NAME for clients that don't know how to fallback
• treat_east_asian_ambiguous_width_as_wide for control over how ambiguous width characters are resolved. #1888
• clean_exit_codes config to fine tune exit_behavior #1889
• ClearSelection key assignment #1900
• wezterm cli list --format json and wezterm cli list-clients --format json allow retrieving data in json format. Thanks to @ratmice! #1911
• macOS, Windows: you may now drag and drop files from other programs and have their paths paste into the terminal. The new quote_dropped_files option controls how the file names are quoted. Thanks to @junnplus and @datasone! #1868 #1953
• The mouse scroll wheel now cycles between tabs when hovering over the tab. Thanks to @junnplus! #1726
• Holding down ALT while dragging the left button will select a rectangular block. It is also possible to use ALT+SHIFT to select a rectangular block. ExtendSelectionToMouseCursor and SelectTextAtMouseCursor now accept "Block" as a selection mode. Thanks to @Funami580 for helping! #1361
• In Copy Mode, CTRL-v will enable rectangular block selection mode. #1656
• Copy Mode: key assignments are now configurable #993
• Search Mode: key assignments are now configurable #993
• Search Mode: the default CTRL-SHIFT-F key assignment now defaults to the new CurrentSelectionOrEmptyString mode to search for the current selection text, if any. See Search for more info.
• Copy Mode and Search Mode can be toggled and remember search results and cursor positioning, making it easier to locate and select text without using the mouse #1592
• In the Launcher Menu, you may now use CTRL-G to cancel/exit the launcher #1977
• cell_width option to adjust the horizontal spacing when the availble font stretches are insufficient. #1979
• min_scroll_bar_height to control the minimum size of the scroll bar thumb #1936
• RotatePanes key assignment for re-arranging the panes in a tab
• SplitPane key assignment that allows specifying the size and location of the split, as well as top-level (full width/height) splits. wezterm cli split-pane --help shows equivalent options you can use from the cli. #578
• ime_preedit_rendering option to choose whether to use the builtin or the system IME preedit rendering mode. Thanks to @kumattau! #2006
• wezterm.strftime_utc for manipulating times in UTC rather than the local timezone
• wezterm cli send-text --no-paste option to send text to a pain without wrapping it as a bracketed paste
• PaneSelect key assignment to activate the pane selection UI to activate or swap the selected pane. #1842 #1975
• window_background_gradient now also supports Linear gradients with an angle of your choice. Thanks to @erf! #2038
• RPM and DEB packages now install zsh and bash wezterm CLI completions
• Grey-green, Neon and Oceanic-Next color schemes

Updated

• Bundled harfbuzz to 4.3.0

Changed

• Debian packages now register wezterm as an alternative for x-terminal-emulator. Thanks to @xpufx! #1883
• Windows: wezterm will now read the default environment variables from the HKLM\System\CurrentControlSet\Control\Session Manager\Environment and HKCU\Environment and apply those to the base environment prior to applying set_environment_variables. #1848
• Key Table lookups will now keep searching the activation stack until a matching assignment is found, allowing for layered key tables. #993
• Search mode's search term is now remembered per-tab between activations of search mode. #1912
• Quickselect no longer jumps to the bottom of the viewport when activated, allowing you to quickselect within the current viewport region
• Quickselect now supports multi-line anchors such as ^ and $. #2008
• Overriding config using the cli --config option will now error out and prevent starting up if unknown config options are specified, or if the value evaluates to nil. Unknown options continue to generate warnings (rather than errors) when observed in the config file so that you're not "locked out" of wezterm if you make a typo in the config file.
• Windows: allow_win32_input_mode now defaults to true and enables using win32-input-mode to send high-fidelity keyboard input to ConPTY. This means that win32 console applications, such as FAR Manager that use the low level INPUT_RECORD API will now receive key-up events as well as events for modifier-only key presses. #1509 #2009 #2098 #1904
• Wayland: enable_wayland now defaults to true. #2104
• exit_behavior now defaults to "Close". #2105

Fixed

• Flush after replying to XTGETTCAP and DECRQM. #1850 #1950
• macOS: CMD-. was treated as CTRL-ESC #1867
• macOS: CTRL-Backslash on German layouts was incorrect #1891
• nf-mdi-contacts nerdfont symbol treated as zero-width #1864
• X11/Wayland: CTRL-i, CTRL-j, CTRL-m misinterpreted as CTRL-Tab, CTRL-Enter, CTRL-Return #1851
• Scrollbar stopped working after a lot of output scrolled outside of the scrollback limit. Thanks to @davidrios! #1866
• Windows: uncommitted IME composition could get stuck when switching input methods. #1922
• OSC sequences, such as those that change the window or tab title, that accept a single string parameter will now join multiple parameters together. This allows window and tab titles to contain a semicolon. Thanks to @kumattau! #1939
• Unable to use ALT as a modifier for the leader key. #1958
• IME Candidate window position was incorrect. Thanks to @kumattau and @aznhe21! #1976 #2001 #2022
• Prevent panic for some classes of invalid input, found while fuzzing. Thanks to @5225225! #1990 #1986
• Detaching an ssh multiplexer domain sometimes killed the associated panes! #1993
• DecreaseFontSize wasn't quite the inverse of IncreaseFontSize. Thanks to @Funami580! #1997
• Wayland: unable to paste text that was copied before starting the initial wezterm window. Thanks to @Funami580! #1994 #1385
• Unicode NFD text could incorrectly render with repeated glyphs #2032
• Windows: spawning new panes/tabs wouldn't automatically use the working directory of the current pane when OSC 7 was not being used #2036
• Wayland: panic when display scaling is enabled. #1727
• Dark+ color scheme background color #2013
• Avoid fragmenting XTVERSION, DA2, DA3 query responses #2060
• Synthesized bold didn't kick in for automatically computed font_rules. #2074
• Added freetype_pcf_long_family_names option to workaround PCF font naming issues on certain Linux distributions. #2100
• X11/Wayland: wezterm.desktop now specifies StartupWMClass. Thanks to @uncomfyhalomacro! #2052 #2125
• sudo -i in a pane would cause subsequent pane/tab creation to fail until the cwd was changed to an accessible directory #2120
• X11: Add x11_focus_change_repaint_delay_ms option to workaround NVIDIA specific window resize quirks. Thanks to @pjones123! #2063 #2111
• macOS: SHIFT-Tab and CTRL-SHIFT-Tab produced incorrect results #1902

20220408-101518-b908e2dd

New

• Key Tables feature for powerful modal key assignments
• wezterm start --position x,y, wezterm start --position displayname:30%,30% option to control starting window position on all systems except for Wayland. See wezterm start --help for more info. #1794

Changed

• Default key assignments are mapped: again. A new key_map_preference option allows the defaults to use "Mapped" or "Physical".
• Disabled ligatures for "Monaco" and "Menlo" fonts, as those have "fi" ligatures that match even for words such as find. #1786 #1736
• Removed the send_composed_key_when_alt_is_pressed option. When processing generic ALT (eg: that has neither left nor right), if either send_composed_key_when_left_alt_is_pressed or send_composed_key_when_right_alt_is_pressed is true, then the composed form of the key event will be generated.

Updated and Improved

• Bundled harfbuzz to 4.2.0
• On macOS, non-native fullscreen mode now attempts to avoid the notch on systems that have one. #1737
• Sixel parsing performance has been improved
• You may now specify a scaling factor per fallback font, which is useful when your preferred CJK font renders smaller than your Roman primary font, for example.
• Color schemes: Retro, GitHub Dark, Blazer
• Wayland: touchpad scroll is now more responsive/precise. Thanks to @davidrios! #1800 #1840
• Kitty image protocol: now also supports shared memory data transmission. Thanks to @tantei3! #1810
• Secondary DA response bumped up to persuade vim to set ttymouse=sgr by default. #1825

Fixed

• Incorrect csi-u encoding with non-ascii characters. #1746
• X11 _NET_WM_ICON had red/blue channels swapped #1754
• ls-fonts output didn't quote the style field #1762
• window_decorations = "RESIZE" on Windows prevented minimize/maximize and aerosnap, double click to maximize, and had an ugly top border. Many thanks to @davidrios! #1674 #1675 #1771
• On Windows, explorer shortcut icons with the maximized setting would fall out of maximized state on startup. Thanks to @davidrios! #1502
• LANG environment variable was not always set on macOS, leading to mojibake when entering CJK. #1761 #1765
• Fonts with only non-unicode names (eg: only using a Chinese multibyte string encoding) were treated as having names like ????? and were not accessible. #1761
• Hover state of leftmost retro style tab was overly sticky when the mouse moved out of the tab. #1764
• On macOS, the font size could incorrectly double or halve after waking from sleep or moving the window to/from an external monitor. #1566 #1745
• On Windows, touchpad scrolling was janky. Many thanks to @davidrios! #1773 #1725 #949
• X11: workaround i3-gaps not sending initial CONFIGURE_NOTIFY or FOCUS events, leading to weird initial window size and broken focus status. #1710 #1757
• Hyperlink rules with more captures than replacements could panic wezterm when text matched. #1780
• Malformed XTGETTCAP response. #1781
• Multiplexer performance with images was unusuable for all but tiny images. #1237
• CloseCurrentPane{confirm=false} would leave behind a phantom tab/pane when used with the multiplexer. #1277
• CloseCurrentPane{confirm=true} artifacts when used with the multiplexer. #783
• Scrollbar thumb could jump around/move out of bounds. Thanks to @davidrios! #1525
• OSC 52 could stop working for tabs/panes spawned into the GUI via the CLI. #1790
• Workaround for fonts with broken horizontal advance metrics #1787
• Improved mouse based selection. Thanks to @davidrios! #1805 #1199 #1386 #354
• X11 KP_End wasn't recognized #1804
• fontconfig matches now also treat "charcell" spacing as monospace. #1820
• Multiplexer render update laggy, especially when using multiple windows. #1814 #1841

20220319-142410-0fcdea07

New

• window:composition_status() and window:leader_is_active() methods that can help populate window:set_right_status() #686
• You may now use colors = { compose_cursor = "orange" } to change the cursor color when IME, dead key or leader key composition states are active.
• Support for SGR-Pixels mouse reporting. Thanks to Autumn Lamonte! #1457
• ActivatePaneByIndex key assignment action. #1517
• Windows: wezterm may now use win32-input-mode to send high-fidelity keyboard input to ConPTY. This means that win32 console applications, such as FAR Manager that use the low level INPUT_RECORD API will now receive key-up events as well as events for modifier-only key presses. Use allow_win32_input_mode=true to enable this. #318 #1509 #1510
• Windows: default_domain, wsl_domains options and wezterm.default_wsl_domains() provide more flexibility for WSL users.
• Symbols Nerd Font Mono is now bundled with WezTerm and is included as a default fallback font. This means that you may use any of the glyphs available in the Nerd Fonts collection with any font without patching fonts and without explicitly adding that font to your fallback list. Pomicons have an unclear license for distribution and are excluded from this bundled font, however, you may manually install the font with those icons from the Nerd Font site itself and it will take precedence over the bundled font. This font replaces the older PowerlineExtraSymbols font. #1521.
• wezterm.nerdfonts as a convenient way to resolve Nerd Fonts glyphs by name in your config file
• ShowLauncherArgs key assignment to show the launcher scoped to certain items, or to launch it directly in fuzzy matching mode
• Workspaces. Follow work in progress on #1531 and #1322! window:active_workspace(), default_workspace, SwitchWorkspaceRelative, SwitchToWorkspace
• wezterm cli send-text "hello" allows sending text, as though pasted, to a pane. See wezterm cli send-text --help for more information. #888
• local_echo_threshold_ms option to adjust the predictive local echo timing for SshDomain, TlsDomainClient and unix domains. Thanks to @qperret! #1518
• It is now possible to set selection_fg and selection_bg to be fully or partially transparent. Read more. #1615
• Experimental (and incomplete!) support for Bidi/RTL can be enabled through the config. Follow along in the tracking issue
• Primary selection is now supported on Wayland systems that implement primary-selection-unstable-v1 or the older Gtk primary selection protocol. Thanks to @lunaryorn! #1423
• pane:has_unseen_output() and PaneInformation.has_unseen_output allow coloring or marking up tabs based on unseen output. #796
• Context menu extension for Nautilus. Thanks to @lunaryorn! #1092
• wezterm.enumerate_ssh_hosts() function that can be used to auto-generate ssh domain configuration

Changed

• Key Assignments now use Physical Key locations by default!! Read more #1483 #601 #1080 #1391
• Key assignments now match prior to any dead-key or IME composition #877
• Removed the ALT-[NUMBER] default key assignments as they are not good for non-US layouts. #1542
• wezterm cli, when run outside of a wezterm pane, now prefers to connect to the main GUI instance rather than background mux server. Use wezterm cli --prefer-mux to ignore the GUI instance and talk only to the mux server. See wezterm cli --help for additional information.
• ScrollByPage now accepts fractional numbers like 0.5 to scroll by half a page at time. Thanks to @hahuang65! #1534
• use_ime now defaults to true on all platforms; previously it was not enabled by default on macOS.
• canonicalize_pasted_newlines default has changed to be more compatible for nano users, and now provides more control over the text format that is pasted. #1575
• Blinking text is now eased rather than binary-blinked. See text_blink_ease_in and text_blink_ease_out, text_blink_rapid_ease_in and text_blink_rapid_ease_out for more information.
• Blinking text cursor is now eased rather than binary-blinked. See cursor_blink_ease_in and cursor_blink_ease_out.

Updated and Improved

• IME and dead key composition state now shows inline in the terminal using the terminal font (All platforms, except Wayland where we only support dead key composition)
• macOS: use_ime=true no longer prevents key repeat from working with some keys #1131
• Bundled harfbuzz to 4.0.1

Fixed

• Regression that broke fontconfig aliases such as "monospace" #1250
• Windows/X11/Wayland: CTRL+C in non-latin keyboard layouts wouldn't send CTRL+C #678
• The new tab button in the fancy tab didn't respect new_tab_hover colors #1498
• Font baseline alignment when mixing symbols/emoji with the main text #1499
• Glitchy window resize #1491
• Ligatured glyphs no longer turn partially black when cursoring through them #478
• Kitty Image Protocol: didn't respect c and r parameters to scale images
• Cursor location on the primary screen wasn't updated correctly if the window was resized while the alternate screen was active #1512
• Windows: latency issue with AltSnap and other window-managery things #1013 #1398 #1075 #1099
• Multiplexer sessions now propagate user vars #1528
• Config reloads on the multiplexer server didn't cause the palette to update on the client #1526
• ScrollToPrompt could get confused when there were multiple prompts on the same line #1121
• Hangul text in NFD was not always correctly composed when shaping fonts. #1573
• Avoid OOM when processing sixels with huge repeat counts #1610
• Set the sticky bit on socket and pid files created in XDG_RUNTIME_DIR to avoid removal by tmpwatch #1601
• Shaping combining sequences like e U+20d7 could "lose" the vector symbol if the font produced an entry with no x_advance. #1617
• Setting the cursor color via escape sequences now take precedence over force_reverse_video_cursor. #1625
• Fixed Detection of DECSDM support via DECRQM/DECRPM, Correct sixel image placement when DECSDM is set and VT340 default sixel colors. Thanks to Autumn! #1577
• Fixed missing whitespace from intermediate lines when copying a wrapped logical line #1635
• Unable to match Iosevka Term when multiple iosevka ttc files were installed on macOS #1630
• Incorrect umask for panes spawned via the multiplexer server #1633
• Fall back from top_left_arrow to left_ptr when loading XCursor themes #1655
• Fixed lingering hover state in titlebar when the mouse pointer left the window. Thanks to @davidrios! #1434
• We now respect the difference between Italic and Oblique font styles when matching fonts. You may explicitly specify style="Oblique" rather than using italic=true for fonts that offer both italic and oblique variants. #1646
• Hang when clicking a URL would launch the browser for the first time on unix systems #1721
• Wayland input handling gets broken after suspend/resume. Thanks to @LawnGnome! #1497

20220101-133340-7edc5b5a

New

• Fancy Tab Bars are now the default. The default tab bar colors have changed to accommodate the new more native look. You can turn them off by setting use_fancy_tab_bar = false.
• Support for the Kitty Image Protocol is now enabled by default. Most of the protocol is supported; animation support is not yet implemented. Try the amazing notcurses if you want to see what modern terminal graphics can do! #986
• unix domains now support an optional proxy_command to use in place of a direct unix socket connection. Read more about multiplexing unix domains
• ScrollToTop and ScrollToBottom key assignments #1360
• SSH Domains now support specifying ssh_config overrides. #1149
• default_gui_startup_args allows defaulting to starting the ssh client (for example). #1030
• mux-is-process-stateful event for finer control over prompting when closing panes. #1412
• harfbuzz_features, freetype_load_target, freetype_render_target and freetype_load_flags can now be overridden on a per-font basis as described in wezterm.font and wezterm.font_with_fallback.
• ActivateTabRelativeNoWrap key assignment #1414
• QuickSelectArgs key assignment #846 #1362
• wezterm.open_wth function for opening URLs/documents with the default or a specific application #1362
• pane:get_foreground_process_name() method, PaneInformation now has foreground_process_name and current_working_dir fields, and pane:get_current_working_dir is now supported on Windows for local processes, even without using OSC 7. #1421 #915 #876
• ActivatePaneDirection now also supports "Next" and "Prev" to cycle through panes #976
• pane:get_logical_lines_as_text to retrieve unwrapped logical lines from a pane #1468
• wezterm.get_builtin_color_schemes() function to eg: pick a random scheme per window, or otherwise reason about schemes. See the docs for examples!
• Added color schemes: Alabaster, CGA, MaterialDesignColors, darkermatrix, nord-light

Changed

• quickselect: we now de-duplicate labels for results with the same textual content. #1271
• The default CompleteSelectionOrOpenLinkAtMouseCursor left button release assignment now also accepts SHIFT being held in order to make SHIFT-click ExtendSelectionToMouseCursor feel more ergonomic if the mouse button is released before the SHIFT key. #1204
• Unicode BIDI and other zero-width graphemes are now filtered out from the terminal model. It's not ideal in the sense that that information is essentially lost when copying to the clipboard, but it makes the presentation correct. #1422
• use_ime now defaults to true on X11 systems

Updated and Improved

• Bundled harfbuzz to 3.2.0
• Bundled freetype to 2.11.1
• Bundled NotoColorEmoji to 2.034 (with Unicode 14 support) Thanks to @4cm4k1! #1440
• macos: removing the titlebar from window_decorations now preserves rounded window corners #1034
• Colors can now be specified in the HSL colorspace using syntax like "hsl:235 100 50" #1436
• Line/Bar cursors in force_reverse_video_cursor mode now use the text foreground color rather than the cursor border color. #1076
• Improved logo appearance. Thanks to @ghifarit53! #1454
• You can now pass SendKey to wezterm.action and make your keys config look more consistent
• Mouse wheel events are now routed to the hovered pane, rather than sent to the focused pane #798

Fixed

• DECSTR (terminal soft reset) now turns off DECLRMM (left and right margin mode). Thanks to @ninjalj! #1376
• Improved conformance of CUP, HVP, SLRM, STBM escape sequences by support empty first parameter. Thanks to @ninjalj! #1377
• tab bar didn't correctly handle double-wide cells and could truncate at edges when using format-tab-title #1371
• wezterm cli --no-auto-start was not respected
• Pixel geometry configured on the PTY in new windows could be incorrect on HiDPI displays until the window was resized #1387
• Image attachment geometry for imgcat and sixels could stretch the image across the rounded up number of cells that contained the image. #1300, #1270
• Closing a split pane created inside a wezterm ssh session wouldn't actually close the pane #1197
• Clicking when unfocused could lead to unwanted text selection #1140 #1310
• Changing font scaling on Windows no longer causes the initial terminal rows/cols to be under-sized #1381
• New version update notifications are now more coordinated between multiple wezterm GUI instances, and update related configuration now respects configuration reloading. #1402
• TLS domains bootstrapping via SSH now use the libssh backend by default and work more reliably on Windows
• Closing a window will no longer recursively terminate contained multiplexer client panes; the window will instead be restored when you next connect to that multiplexer server. Killing/closing individual tabs/panes will kill the panes; this change only affects closing the window. #848 #917 #1224
• Colors were too intense due to over gamma correction #1025
• Mesa and EGL colors were too dim due to under gamma correction #1373
• wezterm ssh no longer tries to use default_prog or default_cwd when spawning additional panes on the remote host #1456
• Launcher menu WSL items now launch correctly on non-US versions of Windows #1462
• Korean text in NFD form is now correctly sized and rendered #1474
• macOS: use_ime=true conflicted with LEADER key assignments #1409
• macOS: certain keys (eg: F8 and F9) did nothing when use_ime=true. #975
• Splitting a tab would cause the window to lose its transparency #1459

20211205-192649-672c1cc1

Fixed

• Windows: wezterm <something> would fail silently when spawning wezterm-gui under the covers. Regression introduced by #1278. Workaround is to directly spawn wezterm-gui.
• Windows: the PTY handles were ignored in favor of the redirected stdio handles of the parent of the wezterm mux process #1358
• Windows: Failure to spawn wezterm when launching an ssh mux domain session no longer waits forever
• "Update available" message kept showing even though already running the latest version #1365

20211204-082213-a66c61ee9

New

• X11 now supports IME. It currently defaults to disabled, but you can set use_ime = true in your config to enable it (you need to restart wezterm for this to take effect). Many thanks to @H-M-H for bringing xcb-imdkit to Rust and implementing this in wezterm! #250 #1043
• it is now possible to define colors in the range 16-255 in colors and color scheme definitions. Thanks to @potamides! #841 #1056
• Added SendKey key assignment action that makes it more convenient to rebind the key input that is sent to a pane.
• Added Multiple key assignment action for combining multuple actions in a single press.
• Added use_resize_increments option to tell X11, Wayland, macOS window resizing to prefers to step in increments of the cell size
• visual_bell and audible_bell configuration options, as well as a bell event allows you to trigger lua code when the bell is rung. #3
• wezterm.action_callback function to make it easier to use custom events. Thanks to @bew! #1151
• wezterm connect now also supports the --class parameter to override the window class
• window_padding now accepts values such as "1cell" or "30%" to compute values based on font or window metrics.
• BSDish systems now support toast notifications
• wezterm.background_child_process function to spawn a process without waiting.
• mux_env_remove setting to control which environment variables should be cleared prior to spawning processes in the multiplexer server #1225
• canonicalize_pasted_newlines option to help Windows users manage newlines in pastes #1213
• SSH client now uses libssh by default. ssh_backend can be used to change this.
• unzoom_on_switch_pane option. Thanks to @yyogo #1301
• unicode_version option and corresponding OSC escape sequences that affects how the width of certain unicode sequences are interpreted.
• macOS: binaries produced by wezterm's CI are now codesigned, which resolves some spurious permission dialogs that affected some users #482

Changed

• new default key assignments: CTRL+PageUp and CTRL+Tab activate next tab, CTRL+PageDown and CTRL+SHIFT+Tab activate previous tab. ALT+{1..8} directly select the first through 8th tabs. Thanks to @friederbluemle! #1132
• X11: we now allow matching visuals with >= 8 bits per rgb value. Previously, we only matched exactly 8 bits. This improve compatibility with systems that have the COMPOSITE extension disabled. Thanks to @shizeeg! #1083
• The incomplete Allsorts shaper was removed.
• Windows: wezterm-gui.exe now only grabs the parent process' console handle when spawned from wezterm.exe, which prevents some frustrating interactions when launching wezterm-gui.exe via start in cmd/powershell. #1278
• AppImage: take care to remove APPIMAGE related environment when spawning child processes. Thanks to @srevinsaju! #1338

Updated and Improved

• bundled harfbuzz updated to version 3.0.0, bundled freetype updated to 2.11
• window close confirmations now accept both uppercase and lowercase Y/N key presses. Thanks to @SpyrosRoum! #1119
• multi-click-streaks are now interrupted by the cursor moving to a different cell. Thanks to @unrelentingtech! #1126
• .deb packages now Provides: x-terminal-emulator. #1139
• use_cap_height_to_scale_fallback_fonts now computes cap-height based on the rasterized glyph bitmap which means that the data is accurate in more cases, including for bitmap fonts. Scaling is now also applied across varying text styles; previously it only applied to a font within an wezterm.font_with_fallback font list.
• Can now match fontconfig aliases, such as monospace, on systems that use fontconfig. Thanks to @unrelentingtech! #1149
• Powerline semicircle glyphs now look much better. Thanks to @bew and @sdrik! #1311
• Splits now look better, especially when using escape sequences to change the default background color #1256

Fixed

• wezterm cli spawn would use the initial terminal size for a new tab, rather than using the current tab size #920
• text_background_opacity opacity was not respected
• spawning commands via the mux didn't respect the PATH configured in set_environment_variables. #1029
• cursor could have a transparent "hole" through the window with certain cursor styles
• Consolas font + random input could cause a divide-by-zero when computing glyph metrics #1042
• Emoji fallback was too strict in respecting VS15/VS16 presentation selection, adjust the fallback to allow showing Emoji/Text presentation if Text/Emoji was requested but not found.
• X11: laggy input after selecting text. #1027
• macOS: send_composed_key_when_left_alt_is_pressed and send_composed_key_when_right_alt_is_pressed are now respected when use_ime=true. Thanks to @jakelinnzy! #1096
• X11: jittery resize with some window managers #1051
• X11: window:get_appearance now actually returns Dark when the theme is dark. #1098
• ALT + Arrow, PageUp/PageDown, Ins, Del, Home, End incorrectly sent ESC prefixed key sequences. #892
• Crash due to Out of Memory condition when the iTerm2 protocol was used to send excessively large PNG files #1031
• DCH (delete char) sequence would remove cells and replace them with default-blank cells instead of blank-cells-with-current-bg-color. #789
• invisible I-beam or underline cursor when force_reverse_video_cursor = true #1076
• SU (scroll up) sequence would fill with default-blank cells instead of blank-cells-with-current-bg-color. #1102
• X11: computed but did not use the correct DPI for HiDPI screens #947
• performance when resolving fallback fonts via fontconfig, and of coverage calculation with freetype. Thanks to @H-M-H!
• Wayland: incorrect initial surface size for HiDPI screens. Thanks to @unrelentingtech! #1111 #1112
• invisible cursor in CopyMode when using kakoune #1113
• Wayland: bypass_mouse_reporting_modifiers didn't work. Thanks to @unrelentingtech! #1122
• new tabs could have the wrong number of rows and columns if a tiling WM resizes the window before OpenGL has been setup. #1074
• Wayland: dragging the window using the tab bar now works. Thanks to @unrelentingtech! #1127
• error matching a font when that font is in a .ttc that contains multiple font families. #1137
• Wayland: panic with most recent wlroots. Thanks to @unrelentingtech! #1144
• incorrect spacing for IDEOGRAPHIC SPACE. #1161
• italic fonts weren't always recognized as being italic, resulting in italic variants being used instead of the non-italic variants in some cases! #1162
• Ask freetype for cell metrics in bitmap-only fonts, rather than simply taking the bitmap width. #1165
• wezterm can now match bitmap fonts that are spread across multiple font files #1189
• ssh config parser incorrectly split Host patterns with commas instead of whitespace #1196
• search now auto-updates when the pane content changes #1205
• fonts with emoji presentation are shifted to better align with the primary font baseline #1203
• the whole tab was closed when only the zoomed pane exited. #1235
• multiplexer: wrong WEZTERM_UNIX_SOCKET environment passed to children when using unix domain sockets and connect_automatically=true #1222
• multiplexer: spawning remote tabs didn't correctly record local tab mapping, resulting in phantom additional tabs showing in the client. #1222
• wezterm ls-fonts --text "✘" didn't account for the system fallback list. #849
• macOS: The Menlo font is now implicitly included in the system fallback list, as it is the only font that contains U+2718 ✘
• wezterm cli spawn --cwd .. and wezterm cli split-pane --cwd .. now resolve relative paths #1243
• Incorrect DECRPTUI response to DA3. Thanks to @ninjalj! #1330
• Reloading config now loads newly defined multiplexer domains, however, existing domains are not updated. #1279

20210814-124438-54e29167

• Fixed: ssh client would read /etc/ssh/config rather than the proper /etc/ssh/ssh_config
• Updated: ssh client now processes Include statements in ssh config
• x11: support for VoidSymbol in key assignments. Thanks to @digitallyserviced! #759
• Fixed: UTF8-encoded-C1 control codes were not always recognized as control codes, and could result in a panic when later attempting to update the line. #768
• Fixed: wezterm cli split-pane didn't use the current working dir of the source pane. #766
• Fixed: double-click-drag selection could panic when crossing line boundaries #762
• Fixed: wrong scaling for ligatures in Recursive Mono font #699
• Fixed: incorrect Sixel HLS hue handling #775
• Fixed: we now recognize the CSI 48:2:0:214:255m form of specifying true color text attributes #785
• Fixed: split separators didn't respect tab_bar_at_bottom=true and were rendered in the wrong place #797
• Improved: messaging around exit_behavior
• Fixed: errors loading custom color schemes are now logged to the error log #794
• Fixed: OSC 7 (current working directory) now works with paths that contain spaces and other special characters. Thanks to @Arvedui! #799
• Changed: the homebrew tap is now a Cask that installs to the /Applications directory on macOS. Thanks to @laggardkernel!
• New: bold/dim and/or italics are now synthesized for fonts when the matching font is not actually italic or doesn't match the requested weight. #815
• Updated: conpty.dll to v1.9.1445.0; fixes color bar artifacts when resizing window and allows win32 console applications to use mouse events
• Fixed: Windows: pane could linger after the process has died, closing only when a new pane/tab event occurs
• Fixed: Windows: first character after wezterm ssh keyboard authention was swallowed #771
• Fixed: Windows: detect window resizes while authenticating for wezterm ssh #696
• Fixed: OSC 52 clipboard escape didn't work in the initial pane spawned in the multiplexer server #764
• Fixed: splitting panes in multiplexer could fail after a network reconnect #781
• Fixed: multiplexer now propagates toast notifications and color palette to client #489 #748
• Fixed: neovim interprets drags as double clicks #823
• New: CTRL+SHIFT+L is assigned to ShowDebugOverlay #641
• Improved: antialiasing for undercurl. Thanks to @ModProg! #838
• Fixed: wezterm start --cwd c:/ didn't run default_prog. Thanks to @exactly-one-kas! #851
• Improved: skip_close_confirmation_for_processes_named now includes common windows shell processes cmd.exe, pwsh.exe and powershell.exe. #843
• Fixed: don't keep the window alive after running something & disown ; exit #839
• Improved: we now draw sextant glyphs from the Unicode Symbols for Legacy Computing block (1FB00) when custom_block_glyphs is enabled.
• Changed: COLORTERM=truecolor is now set in the environment. #875
• New: wezterm cli spawn --new-window flag for creating a new window via the CLI #887
• Fixed: closing last pane in a tab via CloseCurrentPane could cause the window to close #890
• Improved: wezterm ls-fonts --list-system shows all available fonts, wezterm ls-fonts --text "hello" explains which fonts are used for each glyph in the supplied text
• Fixed: mouse cursor is now Arrow rather than I-beam when the application in the terminal has enabled mouse reporting #859
• Improved: DEC Special Graphics mode conformance and complete coverage of the graphics character set. Thanks to Autumn Lamonte! #891
• Fixed: click to focus now focuses the pane under the mouse cursor #881
• Removed: Parasio Dark color scheme; it was a duplicate of the correctly named Paraiso Dark scheme. Thanks to @adrian5! #906
• Fixed: key repeat on Wayland now respects the system specified key repeat rate, and doesn't "stick". #669
• Fixed: force_reverse_video_cursor wasn't correctly swapping the cursor colors in all cases. #706
• Fixed: allow multuple IdentityFile lines in an ssh_config block to be considered
• Improved: implement braille characters as custom glyphs, to have perfect rendering when custom_block_glyphs is enabled. Thanks to @bew!
• Fixed: Mod3 is no longer treater as SUPER on X11 and Wayland #933
• Fixed: paste now respects scroll_to_bottom_on_input. #931
• New: bypass_mouse_reporting_modifiers to specify which modifier(s) override application mouse reporting mode.
• Fixed: focus tracking events are now also generated when switching between panes #941
• New: window_frame option to configure Wayland window decorations #761
• New: window:get_appearance() to determine if the window has a dark mode appearance, and adjust color scheme to match #806
• Improved: improve the new-tab button formatting. Thanks to @sdrik! #950
• Fixed: if a line of text was exactly the width of the terminal it would get marked as wrappable even when followed by a newline, causing text to reflow incorrectly on resize. #971
• Fixed: wezterm ssh could loop forever in the background if the connection drops and the window is closed. #857
• Improved: VT102 conformance. Many thanks to Autumn Lamonte! #904
• New: text_blink_rate and text_blink_rate_rapid options to control blinking text. Thanks to Autumn Lamonte! #904
• New: Added support for Synchronized Rendering #882
• New: wezterm now draws its own pixel-perfect versions of more block drawing glyphs. See custom_block_glyphs for more details. #584
• Fixed: wayland: CursorNotFound error with the whiteglass theme. #532
• Improved: Can now recover from exhausting available texture space by clearing the screen. #879
• Updated bundled Noto Color Emoji font to version 2.028 featuring a design update. Thanks to @4cm4k1! #1003
• Fixed: wayland: putting a window in the Sway scratchpad no longer blocks the wezterm process #884
• Fixed: mouse reporting now correctly reports release events when multiple buttons are pressed and released at the same time. #973
• Fixed: incorrect initial window/pty size when running with some tiling window managers. #695
• New: CTRL-SHIFT-L shows the debug overlay, which shows the error log and a lua repl. #641
• Fixed: macOS: bright window padding on Intel-based macs #653, #716 and #1000
• Improved: wezterm now uses the Dual Source Blending feature of OpenGL to manage subpixel anti-aliasing alpha blending, resulting in improved appearance particularly when using a transparent window over the top of something with a light background. #932
• Fixed: copying really long lines could falsely introduce line breaks on line wrap boundaries #874
• New: wezterm.add_to_config_reload_watch_list function to aid with automatically reloading the config when you've split your config across multiple files. Thanks to @AusCyberman! #989
• Improved: wezterm now respects default emoji presentation and explicit emoji variation selectors (VS15 and VS16) so that glyphs that have both textual (usually monochrome, single cell width) and emoji (color, double width) presentations can be more faithfully rendered. #997
• New: window_background_gradient option to configure color gradients for your window background
• New: wezterm.gradient_colors function to compute RGB values for gradients for use in your config.
• New: color schemes: Abernathy, Ayu Mirage, darkmatrix, Fairyfloss, GitHub Dark, HaX0R_BLUE, HaX0R_GR33N, HaX0R_R3D, Mariana, matrix, Peppermint and UltraDark

20210502-154244-3f7122cb

• Fixed: red and blue subpixel channels were swapped, leading to excessively blurry text when using freetype_load_flags="HorizontalLcd". #639
• Fixed: the selection wouldn't always clear when the intersecting lines change #644
• Fixed: vertical alignment issue with Iosevka on Windows #661
• Fixed: support for "Variable" fonts such as Cascadia Code and Inconsolata on all platforms #655
• New: wezterm.font and wezterm.font_with_fallback attributes parameter now allows matching more granular font weights and font stretch. e.g.: wezterm.font('Iosevka Term', {stretch="Expanded", weight="Regular"}), as fallback can specify weight/stretch/style for each individual font in the fallback.
• New: freetype_render_target option for additional control over glyph rasterization.
• Fixed: wezterm ssh HOST no longer overrides the User config specified by ~/.ssh/config
• Fixed: X11: detect when gnome DPI scaling changes #667
• Fixed: potential panic when pasting large amounts of multi-byte text #668
• Fixed: X11: non-ascii text could appear mangled in titlebars #673
• Improved font IO performance and memory usage on all platforms
• New window:toast_notification method for showing desktop notifications. #619
• Fixed: half-pixel gaps in ligatured/double-wide glyphs depending on the font size #614
• Fixed: Window could vanish if a tab closed while the rightmost tab was active(!) #690
• Fixed: macOS: mouse cursor could get stuck in the hidden state. #618
• Improved: font_rules behavior to always append reasonable default font_rules to those that you may have specified in your config. font_rules now also include defaults for half-bright text styles.
• Improved: added use_cap_height_to_scale_fallback_fonts option to scale secondary fonts according to relative their cap-height metric to improve size consistency. This partially applies to some symbol/emoji fonts, but is dependent upon the font having reliable metrics.
• Improved: font-config queries now run much faster, resulting in snappier startup on unix systems
• Fixed: Hide had no effect on macOS when the titlebar was disabled #679
• Fixed: key and mouse assignments set via window:set_config_overrides were not respected. #656
• Fixed: potential panic when word selecting off top of viewport #713
• Fixed: really long busy wait when displaying single logical json line of 1.5MB in length #714
• New: swallow_mouse_click_on_pane_focus option #724
• New: pane_focus_follows_mouse option #600
• Fixed: splitting a pane while a pane is in the zoomed state would swallow the new pane #723
• Fixed: multi-cell glyphs weren't displayed in tab titles #711
• New: format-window-title hook for customizing the text in the window titlebar
• New: format-tab-title hook for customizing the text in tab titles. #647
• Removed: active and inactive tab_bar_style config values; use the new format-tab-title event instead
• New: force_reverse_video_cursor setting to override the cursor color scheme settings. #706
• Fixed: ssh config parsing now expands ~ to your home directory for appropriate options; previously only %d and ${HOME} were substituted. #729
• New: Quick Select Mode for a tmux-fingers/tmux-thumbs style mouse-less select and copy flow #732
• Fixed: tabs would remain hovered after moving the mouse down into the main terminal area #591
• New: tab_bar_at_bottom setting to put the tab bar at the bottom of the window #278
• New: wezterm.column_width function for measuring the displayed width of a string
• New: wezterm.pad_left, wwezterm.pad_right, wezterm.truncate_left and wezterm.truncate_right function for truncating/padding a string based on its displayed width
• Updated bundled Noto Color Emoji font to version 2.020 with unicode 13.1 support. Thanks to @4cm4k1! #742
• Fixed: Numpad Enter reported as CTRL-C on macOS #739
• Fixed: mouse reporting button state not cleared when focus is lost, eg: from clicking a link #744
• Improved: better looking curly underline. Thanks to @ModProg! #733
• Fixed: wezterm now sets argv0 to -$SHELL to invoke a login shell, rather than running $SHELL -l. #753
• Improved: ssh_config parsing now supports Match for Host, LocalUser.
• Improved render performance for wide windows #740
• New color schemes: Aurora, BlueDolphin, BlulocoDark, BlulocoLight, Doom Peacock, Galizur, Guezwhoz, PaleNightHC, Raycast_Dark, Raycast_Light, Sublette, iceberg-dark and iceberg-light.

20210405-110924-a5bb5be8

• Fixed: bold text got broken as part of fixing #617 :-( #648

20210404-112810-b63a949d

• Fixed: 100% CPU due to spurious resize events generated by herbstluftwm. #557
• Fixed: improved conformance with xterm for keys like CTRL-6 and CTRL-/. #556
• Fixed: detection and handling of fonts such as terminus-bold.otb that contain only bitmap strikes. #560
• Fixed: the pixel size reported by the pty to the kernel wasn't adjusted for font metrics/dpi until the config was reloaded or window resized. #563
• Fixed: greatly reduce memory consumption when system fallback fonts are loaded #559
• Fixed: Windows: window_background_opacity was only taking effect when window_decorations="NONE" #553
• Fixed: an issue where wezterm could hang if the process spawned by a pane doesn't quit when asked #558
• Fixed: panic when dismissing the tab navigator #542
• Fixed: font fallback on macOS returns unresolvable .AppleSymbolsFB rather than Apple Symbols, leading to slowdowns when rendering symbols #506
• Fixed: laggy repaints for large windows particularly on Windows, but applicable to all systems. Tuned and triple-buffered vertex buffer updates. #546
• Changed: allow_square_glyphs_to_overflow_width now defaults to WhenFollowedBySpace and applies to more symbol glyphs. #565
• Changed: macOS: CMD-Q is now bound by default to QuitApplication
• New: added skip_close_confirmation_for_processes_named option which specifies a list of processes for which it is considered safe to allow closing a pane/tab/window without a prompt. #562
• Fixed: triggering the search overlay again while the search overlay is active no longer closes the underlying pane #572
• Fixed: X10 mouse coordinate reporting encoding could produce invalid outputs for large windows. Capped coordinate values to the maximum value that is representable in UTF-8 encoding
• Fixed: font fallback now happens asynchronously from painting #508
• New: added window:get_selection_text_for_pane method #575
• Fixed: implicit hyperlink rules, word and line selection now operate on logical lines which means that they deal with wrapped lines outside of the viewport. #408
• New: wezterm ssh now supports reading ~/.ssh/config and overriding options via the command line. IdentityFile and ProxyCommand are the two main new supported options. Read more about it in ssh.
• Fixed: ssh support will now try all available identities from the SSH agent rather than just the first.
• New: splitting panes in wezterm ssh now works like spawning new tabs: the new program is started on the remote host with no additional authentication required.
• Fixed: Multiplexer sessions would fail to bootstrap via ssh because the bootstrap process exited too soon. #507
• Fixed: Windows: we now compile libssh2 against openssl on all platforms to improve overall key and crypto algorithm support
• Fixed: spawning a new tab via the launcher menu failed because it used the pretty printed multiplexer domain label rather than the multiplexer domain name.
• Fixed: macOS: middle mouse button wasn't recognized. Thanks to @guswynn! #599
• New: added ActivateLastTab key assignment for jumping back to a previously active tab. Thanks to @alexgartrell #610
• Fixed: added missing XTSMGRAPHICS query/response for sixel support #609
• Fixed: avoid showing an error dialog for synthesized font_rules when the configuration specifies a font that doesn't have bold/italic variants. #617
• New: mouse cursor hides when keyboard input is sent to a pane, and shows again when the mouse is moved. #618
• Fixed: macOS: CTRL-Tab key combination was not recognized. #630
• Fixed: wezterm-mux-server will now continue running even after all tabs/panes have been closed. #631
• Fixed: macOS: wezterm-gui could linger in the background until the mouse moves after all tabs/panes have closed
• Fixed: when using line_height, wezterm now vertically centers the cell rather than padding only the top #582
• Fixed: macOS: in US layouts, SUPER+SHIFT+[ was incorrectly recognized as SUPER+SHIFT+{ instead of SUPER+{ #601
• Fixed: wezterm.config_dir was returning the config file path instead of the directory!
• New: wezterm.config_file which returns the config file path

20210314-114017-04b7cedd

• New: tab_bar_style allows customizing the appearance of the rest of tha tab bar.
• New: animated gif and png images displayed via wezterm imgcat (the iTerm2 image protocol), or attached to the window background via window_background_image will now animate while the window has focus.
• New: added foreground_text_hsb setting to adjust hue, saturation and brightness when text is rendered.
• New: added ResetFontAndWindowSize key assignment.
• New: added ScrollByLine key assignment.
• 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.
• New: exit_behavior config option to keep panes open after the program has completed. #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 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 #329
• New: introduced custom_block_glyphs option to ensure that block glyphs don't have gaps. #433
• New: you can now drag the wezterm window via the tab bar
• New: holding SUPER+Drag (or CTRL+SHIFT+Drag) will drag the wezterm window. Use StartWindowDrag to configure your own binding.
• New: configure window_decorations to remove the title bar and/or window border
• New: we now bundle PowerlineExtraSymbols as a built-in fallback font, so that you can use powerline glyphs with any font without patching the font.
• New: window:set_right_status allows setting additional status information in the tab bar. #500
• New: Search Mode: Added CTRL-u key assignment to clear the current search pattern. Thanks to @bew! #465
• Fonts: font_antialias and font_hinting are now deprecated in favor of the new freetype_load_target and freetype_load_flags 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
• 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 #491
• Fonts: macOS: fix an issue where wezterm could hang when loading a font located via Core Text #475
• Fonts: Changed the default font_size to 12 points. #517
• Fonts: Updated bundled JetBrainsMono font to version 2.225
• Added --config-file CLI option to specify an alternate config file location. Read more about config file resolution. Thanks to @bew! #459
• OSC 52 (Clipboard manipulation) now respects the difference between PRIMARY and CLIPBOARD on X11 systems.
• Fixed an issue where large pastes could result in a hang
• Closing the configuration error window no longer requires confirmation
• 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
• Fixed: an issue where closing a pane would immediately SIGKILL the associated process, rather than sending SIGHUP. Thanks to @bew!
• Fixed: line-based mouse selection (default: triple click) now extends forwards to include wrapped lines. #466
• Fixed: the RIS escape wasn't clearing the scrollback. #511
• Wayland: fixed opengl context creation issues. Thanks to @unrelentingtech! #481
• 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.
• Wayland: fixed window decoration and full screen handling #224
• Wayland: fixed an issue where key repeat processing could "run away" and hang the application
• Windows: the portable .zip file download now includes ANGLE EGL, just like the setup.exe installer has done since version 20201031-154415-9614e117
• Windows: Fixed ToggleFullScreen so that it once again toggles between full screen and normal placement. #177
• Windows: fix the unexpected default behavior of Ctrl-Alt being converted to AltGr for layouts supporting this key, the previous behavior is still possible by enabling the option treat_left_ctrlalt_as_altgr (to solve #392). Thanks to @bew! #512
• Windows: fixed "Open WezTerm Here" context menu in explorer when used on the root of a drive (eg: C:\). Thanks to @flyxyz123! #526 #451
• X11: fix an issue where SHIFT-Enter was not recognized #516
• X11: improved DPI detection for high-DPI displays. #515
• X11: we now load the XCursor themes when possible, which means that the mouse cursor is now generally a bit larger and clearer as well as conforming more with the prevailing style of the desktop environment. #524
• Improved and optimized image processing so that watching videos via timg - Terminal Image and Video Viewer works better #537 #535 #534

20210203-095643-70a364eb

• Fix cursor position after using iTerm2 image protocol #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
• 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
• Add ScrollToPrompt 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.
• Fixed an issue where SpawnWindow didn't use the current working directory from the current pane to spawn the new window
• 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.
• Added SemanticZone as a possible parameter for SelectTextAtMouseCursor, making it possible to conveniently select complete input or output regions.
• Improved font rendering #320 #331 #413 and changed font_antialias = "Greyscale" by default.
• Updated internal harfbuzz shaper to 2.7.2
• Fixed ALT-Escape not sending ESC-ESC #338
• 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
• macOS: Improved key input when Option is pressed. Fixed dead key processing when use_ime=true. #357
• macOS: Adjusted default dpi to 72 to bring point sizes into alignment with other macOS apps. #332
• Improved font fallback; we now try harder to find a system-provided font for glyphs that are not found in your explicitly configured fonts.
• Revised pty output processing and removed the related ratelimit_output_bytes_per_second option
• Workaround Cocoa leaking window position saved state file descriptors to child processes on macOS Big Sur, and Gnome/Mutter doing something similar under X11
• The 256 color cube now uses slightly brighter colors #348
• 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
• 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
• 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.
• Windows: fix an issue where VNC-server-emulated AltGr was not treated as AltGr #392
• X11: fix an issue where keys that produce unicode characters retained SHIFT as a modifier instead of normalizing it away. #394
• Fixed an issue where a symbol-only font would be seen as 0-width and panic wezterm #404
• 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
• Added selection_word_boundary option to control double-click word selection boundaries. The default is \t\n{}[]()"'`. #405
• Added support for Curly, Dotted and Dashed underlines. See this documentation on the escape sequences how enable undercurl support in vim and nvim. #415
• Fixed an issue where wezterm would spawn processes with umask 077 on unix systems, rather than the more commonly expected umask 022. #416
• macOS: We now ship a Universal binary containing both Intel and "Apple Silicon" architectures
• Setting a really large or really small font scale (using CTRL +/-) no longer causes a panic #428
• Fixed an issue where the mouse wheel wasn't mapped to cursor up/down when the alternate screen was active #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
• 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
• 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
• 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
• New: ClearScrollback now accepts a parameter to control whether the viewport is cleared along with the scrollback. Thanks to @dfrankland!
• New: default_cwd to specify an alternative current working directory. Thanks to @dfrankland!
• New: CopyTo and PasteFrom actions. Copy, Paste and PastePrimarySelection 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 and CompleteSelectionOrOpenLinkAtMouseCursor 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! #445
• Unix: adjust font-config patterns to also match "dual spacing" fonts such as Iosevka Term. Thanks to Leiser! #446
• New: Added alternate_buffer_wheel_scroll_speed 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
• macOS: Dead Keys are now processed even when use_ime=false. More details in the docs. #410.
• X11: attempt to load cursors from the XCursor.theme resource specified on the root window #524
• Added file:// URL matching to the default list of implicit hyperlink rules #525

20201101-103216-403d002d

• Whoops! fixed a crash on macOS when using multiple windows in the new Metal renderer #316

20201031-154415-9614e117

• New: split/pane support! CTRL+SHIFT+ALT+" to SplitVertical, and CTRL+SHIFT+ALT+% to SplitHorizontal.
• New: LEADER modifier key support
• New: window_background_opacity and window_background_image options to control using background images, transparent windows. More info
• New color schemes: Dracula+, Gruvbox Light, MaterialDarker, Overnight Slumber, Popping and Locking, Rapture, jubi, nord.
• New: expanded lua API allows handling URI clicks and keyboard events with lua callbacks. See wezterm.on docs.
• The GUI layer now normalizes SHIFT state for keyboard processing. If a keypress is ASCII uppercase and SHIFT is held then the SHIFT modifier is removed from the set of active modifiers. This has implications for your key assignment configuration; previously you would write {key="T", mods="CTRL|SHIFT"}, after updating to this release you need to write {key="T", mods="CTRL"} in order for your key bindings to take effect.
• Added show_tab_index_in_tab_bar option which defaults to true. Causes the tab's ordinal index to be prefixed to tab titles. The displayed number is 1-based. You can set tab_and_split_indices_are_zero_based=true if you prefer the number to be zero based.
• On Linux and macOS systems, wezterm can now attempt to guess the current working directory that should be set in newly spawned local panes/tabs, in case you don't have OSC 7 integration setup in your shell.
• We now bundle JetBrains Mono and use it as the default font, and add it as a default fallback font. Similarly, we also bundle Noto Color Emoji as a default fallback for emoji.
• Added automatically_reload_config=false option to disable automatic config reloading. When set to false, you will need to manually trigger a config reload (default: SUPER+R or CTRL+SHIFT+R)
• CloseCurrentTab now requires a confirm parameter.
• Halved the memory usage requirements per Cell in the common case (saving 32 bytes per cell), which gives more headroom for users with large scrollback.
• Reduced initial GPU VRAM requirement to 2MiB. Improved texture allocation to avoid needing lots of VRAM.
• macOS: Fix issue where new windows would open as Cocoa tabs when wezterm was maximized.
• macOS: Fix issue where wezterm wouldn't adjust to DPI changes when dragging across monitors or the screen resolution changed
• macOS: Reduced trackpad based scrolling sensitivity; it was hyper sensitive in previous releases, and now it is more reasonable.
• Fix an issue where EGL failed to initialize on Linux
• If EGL/WGL/OpenGL fail to initialize, we now try to fallback to Mesa OpenGL in software render mode. This should result in its llvmpipe renderer being used as a fallback, which has improved visuals compared to wezterm's own basic CPU based renderer. (This applies to X11/Wayland and Windows systems).
• Setting front_end="Software" will try to use the Mesa OpenGL software renderer if available (X11/Wayland/Windows). The old basic CPU renderer has been removed.
• The multiplexer server has been moved into its own wezterm-mux-server executable. You will need to revise your serve_command configuration.
• Windows: when started in an RDP session, force the use of the Mesa software renderer to work around problems with RDP GPU emulation.
• Fixed an issue with TLS Multiplexing where bootstrapping certificates would usually fail.
• Windows: Fixed an issue that prevented ALT-Space from showing the system menu in the window.
• Windows: Fixed dead key handling. By default dead keys behave the same as in other programs and produce diacritics. However, setting use_dead_keys = false in the config will cause dead keys to behave like a regular key; eg: ^ would just emit ^ as its own character.
• Windows: Fixed an issue with the Hide key assignment; it would hide the window with no way to show it again! Hide now minimizes the window instead.
• macOS: we now use Metal to render the gui, via MetalANGLE
• Windows: we now prefer to use Direct3D11 to render the gui, via ANGLE EGL. The primary benefit of this is that upgrading your graphics drivers while you have a stateful wezterm session will no longer terminate the wezterm process. Resize behavior is not as smooth with ANGLE as the prior WGL. If you wish, you can set prefer_egl = false to use WGL.
• Improved image protocol support to have better render fidelity and to reduce VRAM usage when the same image it displayed multiple times in the same pane.

20200909-002054-4c9af461

• Added support for OSC 1 (Icon Title changing), and changed how that interacts with OSC 2 (Window Title changing). If you specify OSC 1 as a non-empty string, then that will be used for the title of that terminal instance in the GUI. Otherwise the Window Title will be reported instead.
• Added missing mappings for Application Keypad keys on Linux
• Workaround an EGL issue where Mesa reports the least-best alpha value when enumerating configs, rather than the best alpha. This could lead to incorrect alpha under XWayland and failure to initialize EGL and fallbacks to the Software renderer in some other cases.
• enable_wayland now defaults to false; mutter keeps breaking client-side window decoration so let's just make it opt-in so that the default experience is better.
• Fixed a crash on Linux/X11 when using wezterm connect HOST
• Added tab_max_width config setting to limit the maximum width of tabs in the tab bar. This defaults to 16 glyphs in width.

20200718-095447-d2315640

• Added support for DECSET 1004 Focus Reporting to local (not multiplexer) terminal sessions.
• Added support for SGR 53/55 which enable/disable Overline style. printf "\x1b[53moverline\x1b[0m\n"
• Windows: updated bundled openconsole.exe to efb1fdd to resolve an issue where bold text didn't respect the configured color scheme.
• Added bold_brightens_ansi_colors option to allow disabling the automatic brightening of bold text.
• Unix: fix an issue where setting the current working directory for a custom spawned command would not take effect (thanks @john01dav!)
• Windows: fixed buffering/timing issue where a response to a color query in vim could be misinterpreted and replace a character in the editor with the letter g.
• X11: Improved support for non-24bpp display depths. WezTerm now tries harder to obtain an 8bpc surface on both 16bpp and 30bpp (10bpc) displays.
• Windows: fixed falling back to a simpler OpenGL context if WGL is unable to negotiate a robust context. This is useful on systems with dual high/low power GPU hardware where the OpenGL versions for the two GPUs are different!
• Color Schemes: synced with ea2c841 which includes new schemes: Adventure, Banana Blueberry, Blue Matrix, BlueBerryPie, Cyberdyne, Django, DjangoRebornAgain, DjangoSmooth, DoomOne, Konsolas, Laser, Mirage, Rouge 2, Sakura, Scarlet Protocol, synthwave-everything, Tinacious Design (Dark), Tinacious Design (Light).

20200620-160318-e00b076c

• Fixed default mapping of ambiguous ctrl key combinations (i, m, [, {, @) so that they emit the old school tab, newline, escape etc. values. These got broken as part of prototyping CSI-u support a while back.
• Added option to enable CSI-u key encodings. This is a new mapping scheme defined here http://www.leonerd.org.uk/hacks/fixterms/ that disambiguates and otherwise enables more key binding combinations. You can enable this setting using enable_csi_u_key_encoding = true in your config file.
• Very early support for sixel graphics
• macos: use_ime now defaults to false; this is a better out of the box experience for most users.
• macos: we now attempt to set a reasonable default LANG environment based on the locale settings at the time that wezterm is launched.
• macos: introduce send_composed_key_when_left_alt_is_pressed and send_composed_key_when_right_alt_is_pressed boolean config settings. Like the existing send_composed_key_when_alt_is_pressed option, these control whether the Alt or Option modifier produce composed output or generate the raw key position with the ALT modifier applied. The difference from the existing config option is that on systems where Left and Right Alt can be distinguished you now have the ability to control this behavior independently. The default behavior on these systems is send_composed_key_when_left_alt_is_pressed=false and send_composed_key_when_right_alt_is_pressed=true so that the right Alt key behaves more like an AltGr key and generates the composed input, while the Left Alt is regular uncomposed Alt.
• Fonts: fixed an issue where specifying italic or bold in the second parameter of wezterm.font didn't work as intended or documented
• Improved terminal emulation conformance; added left/right margin support and now passes esctest to a similar degree as iTerm2
• Fixed an issue where unmodified F5+ would use the CSI-u encoded-modifiers format, and confused eg: htop.
• ActivateTab now accepts negative numbers as a way to reference the last tab in the Window. The default assignment for CTRL+SHIFT+9 and CMD+9 is now ActivateTab=-1, which selects the last tab.
• Fixed an issue when applying hyperlink rules to lines that had mixed width characters

20200607-144723-74889cd4

• Windows: Fixed AltGr handling for European layouts
• X11: Added PastePrimarySelection key assignment that pastes the contents of the primary selection rather than the clipboard.
• Removed old TOML config file parsing code
• Removed old arg="something" key binding parameter. This was a remnant from the TOML based configuration. You're unlikely to notice this unless you followed an example from the docs; migrate instead to using eg: action=wezterm.action{ActivateTab=i-1} to pass the integer argument.
• Windows: now also available with a setup.exe installer. The installer enables "Open WezTerm Here" in the explorer.exe context menu.
• Added ClearScrollback key assignment to clear the scrollback. This is bound to CMD-K and CTRL-SHIFT-K by default.
• Added Search key assignment to search the scrollback. Read the new scrollback section for more information!
• Fixed an issue where ALT+number would send the wrong output for European keyboard layouts on macOS and Linux. As part of this the default behavior has changed: we used to force ALT+number to produce ALT+number instead of the composed key for that layout. We now emit the composed key by default. You can switch to the old behavior either by explicitly binding those keys or by setting send_composed_key_when_alt_is_pressed = false in your configuration file.
• Windows: the launcher menu now automatically lists out any WSL environments you have installed so that you can quickly spawn a shell in any of them. You can suppress this behavior if you wish by setting add_wsl_distributions_to_launch_menu = false. Read more about the launcher menu
• Added ActivateCopyMode key assignment to put the tab into mouseless-copy mode; use the keyboard to define the selected text region. This is bound to CTRL-SHIFT-X by default.

20200517-122836-92c201c6

• AppImage: Support looking for configuration in WezTerm.AppImage.config and WezTerm.AppImage.home to support portable thumbdrive use of wezterm on linux systems
• We now check the github releases section for updated stable releases and show a simple UI to let you know about the update, with links to download/install it. We don't automatically download the release: just make a small REST API call to github. There is no data collection performed by the wezterm project as part of this. We check once every 24 hours. You can set check_for_updates = false in your config to disable this completely if desired, or set check_for_updates_interval_seconds to an alternative update interval.
• Added support for OSC 110-119 to reset dynamic colors, improving our support for Neovim.
• Change OSC rendering to use the long-form ST sequence ESC \ rather than the more convenient alternative BEL representation, which was not recognized by Neovim when querying for color information.
• Fixed Shift-Tab key on X11 and Wayland
• WezTerm is now also available to Windows users via Scoop

20200503-171512-b13ef15f

• Added the launch_menu configuration for the launcher menu as described in Launching Programs.
• Fixed a crash when reloading a config with enable_tab_bar=false
• Fixed missing icon when running under X11 and Wayland
• Wayland client-side-decorations improved and now also render window title
• Implicitly SGR reset when switching alt and primary screen
• Improved config error reporting UI: we now show just a single window with all errors rather than one window per failed reload.

20200406-151651-5b700e4

• Added lua based configuration. Reading TOML configuration will be rapidly phased out in favor of the more flexible lua config; for now, both are supported, but new features may not be available via TOML.
• Added launcher overlay. Right click the + button on the tab bar or bind a key to ShowLauncher to activate it. It allows spawning tabs in various domains as well as attaching multiplexer sessions that were not connected automatically at startup.
• Windows: we now support mouse reporting on Windows native ptys. For this to work, conpty.dll and OpenConsole.exe must be present alongside wezterm.exe when starting wezterm.
• Added initial_rows and initial_cols config options to set the starting size of new terminal windows
• Added hide_tab_bar_if_only_one_tab = true config option to hide the tab bar when the window contains only a single tab.
• Added HideApplication key action (defaults to CMD-H on macOS only) which hides the wezterm application. This is macOS specific.
• Added QuitApplication key action which causes the gui loop to terminate and the application to exit. This is not bound by default, but you may choose to assign it to something like CMD-Q.
• Added set_environment_variables configuration section to allow defining some environment variables to be passed to your shell.
• Improved connectivity UI that shows ssh and mux connection progress/status
• Fixed a bug where the baud rate was not applied when opening a serial port
• Added predictive local echo to the multiplexer for higher latency connections
• We now grey out the UI for lagging multiplexer connections
• Set an upper bound on the memory usage for multiplexer connections

20200202-181957-765184e5

• Improved font shaping performance 2-3x by adding a shaper cache
• Windows: now has support for TLS based multiplexer connections
• Multiplexer: TLS multiplexer can now be bootstrapped via SSH, and automatically manages certificates
• Unix: We now default to spawning shells with the -l argument to request a login shell. This is important on macOS where the default GUI environment doesn't source a working PATH from the shell, resulting in an anemic PATH unless the user has taken care to cover this in their shell startup. -l works to enable a login shell in zsh, bash, fish and tcsh. If it doesn't work with your shell, you can use the default_prog configuration option to override this.
• 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 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

20200113-214446-bb6251f

• Added color_scheme configuration option and more than 200 color schemes
• Improved resize behavior; lines that were split due to the width of the terminal are now rewrapped on resize. Issue 14
• Double-click and triple-click and hold followed by a drag now extends the selection by word and line respectively.
• 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.
• Changed Backspace/Delete handling
• Added MoveTabRelative for changing the ordering of tabs within a window using key assignments CTRL+SHIFT+PageUp and CTRL+SHIFT+PageDown
• The multiplexer protocol is undergoing major changes. 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 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

20191229-193639-e7aa2f3

• Fixed a hang when using middle mouse button to paste
• Recognize 8-bit C1 codes encoded as UTF-8, which are used in the Fedora 31 bash prexec notification for gnome terminal
• Ensure that underlines are a minimum of 1 pixel tall
• Reduced CPU utilization on some Wayland compositors
• Added $WEZTERM_CONFIG_FILE to the start of the config file search path
• Added new font rendering options:

font_antialias = "Subpixel" # None, Greyscale, Subpixel
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 harfbuzz_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 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.
• Color scheme changes made in the config file now take effect at config reload time for all tabs that have not applied a dynamic color scheme.

20191218-101156-bf35707

• Configuration errors detected during config loading are now shown as a system notification
• New font_dirs configuration option to specify a set of dirs to search for fonts. Useful for self-contained wezterm deployments.
• The font_system option has been split into font_locator, font_shaper and font_rasterizer options.
• Don't allow child processes to inherit open font files on posix systems!
• Disable Nagle's algorithm for wezterm ssh sessions
• Add native Wayland window system support

20191124-233250-cb9fd7d

• New tab bar UI displays tabs and allows creating new tabs
• Configuration file changes are hot reloaded and take effect automatically on save
• wezterm ssh user@host for ad-hoc SSH sessions. You may also define SSH multiplexer sessions.
• wezterm serial /dev/ttyUSB0 to connect to your Arduino
• wezterm imgcat /some/image.png to display images inline in the terminal using the iTerm2 image protocol
• IME support on macOS and Windows systems
• Automatic fallback to software rendering if no GPU is available (eg: certain types of remote desktop sessions)