• Fixes a screen buffer manipulation bug that may happen on non-stylyzed but interactive command prompts (#787).
• Fixes viewport misalignment when in scrollback area white new lines are being added to the main page area.
• Fixes logging file toggle.
• Adds VT sequence CSI 5m (blink) and CSI 6m (rapid blink).
• Adds vim-like scrolloff feature to normal mode cursor movements to ensure a line padding when scrolling up/down.
• Adds vim-like incremental search functionality with realtime highlighting and cycling through the matches.
• Adds ability to initiate search via configuration action SearchReverse in input mappings.
• Adds ability to cancel highlighted search terms via configuration action NoSearchHighlight in input mappings.
• Adds input mapping mode Search to conditionally enable input mapping when a search term is present.
• Adds support for HSL colorspace in Sixel images.
• Adds configuration key colorscheme.*.search_highlight for coloring search matches.
• Adds configuration key colorscheme.*.search_highlight_focused for coloring the active search match, containing the cursor.
• Adds alpha value to colorscheme.*.vi_mode_highlight color configuration.
• Adds VT sequence for ANSI mode NLM (NewLine Mode).
• Always show indicator status line when ANSI mode KAM is enabled (which can be toggled via action ToggleInputProtection).
• Always show indicator status line when in non-insert mode.
• [Linux] Changes the .desktop file name and icon file name to conform to the flatpak recommendations.
• [Linux] Provide an AppStream XML file.
• [Linux] Drop KDE/KWin dependency on the binary by implementing enabling blur-behind background manually.
• [Linux] Adds support for blur-behind window on GNOME shell.
• [Flatpak] Also pass stdout-fastpipe (3) to shell.
• [Flatpak] Do not set controlling terminal in order to allow TTY abilities like Ctrl+C. This seems to be a known bug in flatpak.
• [Flatpak] Exposes TERMINFO environment variable pointing to a valid path containing the contour terminfo file.
• Changes behavior of PTY (and shell process) creation until only when a PTY is required by the terminal emulator during instanciation, possibly avoiding problems with xdotool running too early.
• Internal: Y-axis inverted to match GUI coordinate systems where (0, 0) is top left rather than bottom left.

• Fixes writing to a non-empty line sometimes destroying the contents of that line (#702).
• Fixes underline decoration for wide character cells.
• Fixes SGR 8 (Conceal/Hidden) attribute doesn't work as expected (#699).
• Fixes Synchronized Updates (SM/RM ? 2026) sometimes lagging behind in rendering.
• Fixes SGR and text breakage when altering charsets via ESC ( 0 VT sequence (#661).
• Fixes SEGV when closing the terminal via GUI close button.
• Fixes scrolling in alt-screen.
• Fixes VT sequence for setting indexed color from palette.
• Fixes some config false positives error messages.
• Fixes command line arguments parser handling of -- for switching to verbatim mode (#670).
• Fixes rendering of U+E0B2  in pixel-perfect box drawing mode (#707).
• Fixes rendering of cursor sometimes being almost invisible when foreground and background colors are similar/equal (#691).
• Fixes line based selection sometimes not selecting the full line when wrapped over multiple lines.
• Fixes warning message on terminal's console output when enabling blurred background images.
• Fixes Win32 command output: Attaches to parent console if present, so typing contour help in a terminal actually shows something.
• Changes XTSMGRAPHICS to match implementation of xterm exactly when querying sixel image limits, to be capped at terminal viewport dimensions (#656).
• Changes CLI syntax for contour parser-table to contour generate parser-table.
• Implements UTF-8 encoded mouse transport (CSI ? 1005 h)
• Improved vi-like input modes.
  • Fixed the text cursor not being visible during selection.
  • Don't leak but actually support cursor keys up/down/left/right/page-up/page-down.
  • Added vip, vap (and yip / yap) motions.
  • Adds ^ motion.
  • When being in normal mode, pressing a also puts you back to insert mode.
  • Properly show cursor if it was hidden in insert mode and restore visibility & shape when going back to insert mode.
  • and don't just move the cursor up/down but also move the terminal's viewport respectively (inspired by tmux).
  • and to move cursor to the current viewport's page top/bottom (inspired by tmux).
  • and more...
• Adds new config option profile.*.vi_mode_highlight_timeout and colorscheme.*.vi_mode_highlight and adds cell highlighting on yank (#669).
• Adds support for running on ARMv8 platform with crypto extensions (#611).
• Adds back support OpenGL ES (3.1).
• Adds E3 capability, so clear now defaults to clearing screen and scrollback (#693).
• Adds specialized PTY implementation for Linux operating system utilizing OS-specific kernel APIs.
• Adds basic support for Indicator status line and their VT sequences DECSASD and DECSSDT, and DECRQSS has been adapted (#687).
• Adds configuration option profiles.*.status_line.display to be either none or indicator to reflect the initial state of the status line (more customizability of the Indicator status-line will come in future releases).
• Adds new action ToggleInputProtection to protect terminal application against accidental input (#697).
• Adds configuration options logging.enabled as well as logging.file.
• Adds VT sequences XTPUSHCOLORS, XTPOPCOLORS, XTREPORTCOLORS (#714).
• Adds CLI syntax contour info vt to print list of supported VT sequences (#730).
• Adds VT sequence DECPS (#237).
• Adds new config option colorscheme.selection.foreground_alpha and colorscheme.selection.background_alpha to enable somewhat more eye-candy visual looks on text selection.
• Extends config option colorscheme.selection.foreground and colorscheme.selection.background to also accept CellForeground and CellBackground as value.

TL;DR This release is important as it's fixing some rendering bug. Most proudly however is to be presented the introduction of different vi-like input modes, that can be used to quickly copy'n'paste and move around in the grid buffer using the well known vi motions.

• Adds Vi-like input modes for improved selection and copy'n'paste experience.
• Adds contour executable to search path for spawned shell process on OS/X and Windows.
• Adds customizability to dim colors (#664).
• Adds the profile configuration option: draw_bold_text_with_bright_colors.
• Fixes CSI K accidentally removing line flags, e.g. line marks (#658).
• Fixes wrong-spacing rendering bug on some lines.
• Fixes assertion on font resize when a (Sixel) image is currently being rendered (#642).
• Fixes assertion on too quick shell terminations (#647).
• Fixes fallback shell execution on UNIX-like systems when the reuqested shell cannot be spawned (#647).
• Fixes selection being wrongly rendered when viewport is scrolled (#641).
• Fixes full-line selection not properly injecting linefeeds between the lines.
• Changes behaviour of full-line selection to include a trailing linefeed for the last line (#641).
• Changes behaviour of bold text to by rendered using normal colors by default (was forced to bright before, and is now configurable via draw_bold_text_with_bright_colors).

TL;DR Many thanks to all for the great support and feedback. This release
marks a huge milestone for me especially with regards to VT backend performance(!),
improved rendering architecture, and a more complete list of pixel perfect box drawings.

• Fixes installation from .deb (missing terminfo dependency)
• Fixes PTY write race condition.
• Fixes VT sequence DECFI.
• Fixes VT sequence ICH (#559).
• Fixes VT sequence OSC 4's response.
• Fixes VT sequence OESC 4 to also support setting color via #RRGGBB.
• Fixes VT sequence extension: capture buffer (#493).
• Fixes DECRC with respect to DECSTBM enabled and DECOM being inverted interpreted.
• Fixes XTGETTCAP (#582).
• Fixes SU in combination with DECLRM (#593).
• Fixes an assertion in text renderer.
• Fixes wrongly advertising DEC locator mode (it is not supported).
• Improved VT backend performance (#342).
• Improved text selection behaviour.
• Improved detection of runtime DPI changes for KDE (Plasma) desktop environment.
• Improves Window manipulation VT sequence for saving/restoring window title (CSI 22 ; Ps t, CSI 23 ; Ps t)
• Adds pixel-perfect box-drawing for U+EE00 .. U+EE05 for progress bar glyphs as first introduced by Fira Code (#521).
• Adds pixel-perfect box-drawing for U+E0B0, U+E0B2, U+E0BA (Triangle Powerline glyphs).
• Adds preliminary implementation of DA3 VT sequence.
• Adds new configuration option mouse_block_selection_modifier.
• Adds new configuration option profiles.*.copy_last_mark_range_offset (default 0) to adjust where to start looking upwards for the CopyPreviousMarkRange action. This is useful for multi-line prompts.
• Adds new configuration option platform_plugin.
• Adds new configuration option renderer.backend for explicitly setting renderer to one of: OpenGL, software, default.
• Adds new configuration option renderer.tile_hashtable_slots to configure texture atlas hashtable capacity.
• Adds new configuration option renderer.tile_cache_count to configure texture atlas cache capacity.
• Adds new configuration option renderer.tile_direct_mapping to enable/disalbe texture atlas direct mapping.
• Adds new colorscheme setting background_image.path and background_image.opacity to optionally render a terminal background image.
• Adds stdout-fastpipe support on new shell file descriptor 3 and exposing availability via environment variable STDOUT_FASTPIPE (with value 3). When writing to this file descriptor rather than to stdout (file descriptor 1), the full performance of Contour can be explored.
• Adds new configuration option pty_buffer_size for tweaking the new size in bytes for the PTY buffer objects.
• Adds mock font locator (mostly interesting for advanced use for CI testing).
• Adds VT sequence SM ? 8452 h / RM ? 8452 l for enabling/disabling sixel cursor placement conformance (xterm extension).
• Adds SGR-Pixels support, VT sequence SM ? 1016 h / RM ? 1016 l (#574).
• Adds VT sequence DECCARA, Change Attributes in Rectangular Area, with the extension that it applies to all SGR attributes. (#15).

Important: It is recommended to also use the latest contour termcap file if you are already using one
from a previous release.

• Fixes installation from .deb (missing terminfo dependency)
• Fixes Sixel image rendering when scrolling is needed and ANSI cursor is not on left margin.
• Fixes Qt-related CLI options that that were largely ignored.
• Fixes crash caused by VT sequence PM and SOS (#513).
• Fixes parsing VT sequence RGB color parsing for cell decoratioins (e.g. underline).
• Fixes double-underline to not look like a very thick line on small font sizes.
• Applies antialiasing to curly underline.
• Changes contour exit code to reflect the shell's exit code of the last closed window.
• Improves text cursor rendering and extends cursor configuration accordingly (#526).
• Improves visual appearance of dotted underline SGR.
• Adds CLI option terminal early-exit-threshold SECS (defaulting to 6) to only report and wait if the process did exit below this threshold seconds.
• Adds CLI option terminal dump-state-at-exit to auto-dump internal state at exit.
• Adds support for CoreText for matching font descriptions and font fallback (#479).
• Adds support for font feature settings. This is currently only implemented for openshaper, not yet for dwrite (#520).
• Adds pixel-perfect box-drawing for U+E0B4, U+E0B6, U+E0BC, U+E0BE (some Powerline extended codepoints).

Important: It is recommended to also use the latest contour termcap file if you are already using one
from a previous release.

• Fixes Sixel image rendering when scrolling is needed and ANSI cursor is not on left margin.
• Fixes Qt-related CLI options that that were largely ignored.
• Fixes crash caused by VT sequence PM and SOS (#513).
• Fixes parsing VT sequence RGB color parsing for cell decoratioins (e.g. underline).
• Fixes double-underline to not look like a very thick line on small font sizes.
• Applies antialiasing to curly underline.
• Changes contour exit code to reflect the shell's exit code of the last closed window.
• Improves text cursor rendering and extends cursor configuration accordingly (#526).
• Improves visual appearance of dotted underline SGR.
• Adds CLI option terminal early-exit-threshold SECS (defaulting to 6) to only report and wait if the process did exit below this threshold seconds.
• Adds CLI option terminal dump-state-at-exit to auto-dump internal state at exit.
• Adds support for CoreText for matching font descriptions and font fallback (#479).
• Adds support for font feature settings. This is currently only implemented for openshaper, not yet for dwrite (#520).
• Adds pixel-perfect box-drawing for U+E0B4, U+E0B6, U+E0BC, U+E0BE (some Powerline extended codepoints).

• Fixes input mapping containing Control modifier.
• Fixes input mapping mode Select being ignored.
• Fixes Modifier+Enter input mapping not being catched.
• Fixes slant detection for DirectWrite.
• Changes DECCOLM to only switch back to 80 when it was 132 before.
• Adds new config option spawn_new_process to define new terminal window behavior.
• Adds action CancelSelection to allow actively canceling selection via input mappings.
• Adds key bindings to default configuration to allow simply pressing Ctrl+C/Ctrl+V (without Shift modifier) when an active selection is present.
• Adds process current working directory on macOS.
• Adds contour license CLI command to show project license but also an overview of all dependencies.
• Adds a proper CLI to bench-headless. Building the headless benchmark tool is not shipped by default.

• Reverts change from 0.2.0: "Changes behaviour when receiving U+FE0E (VS15) to not enforce the width of 1 but leave it as is (usually 2). This seems to match what the web browser is doing, too."
• Adds support for loading terminal color schemes from an exernal file, such as ~/.config/contour/colorschemes/onedark.yml for the scheme onedark (file file format is simply a sub-tree of how colors can be specified inline).
• Adds some more tmux-extension entries to the terminfo database that are supported by contour (Ss, Se, Cs, Smol, Smulx, Setulc).
• Adds Sync capability entry to terminfo file.
• Adds many more pixel-perfect graphical characters: 23A1..23A6, 2580..2590, 2594..259F, 1FB00..1FB3B, 1FB3C..1FBAF, 1FBF0..1FBF9.
• Adds support for building with embedded FreeType and HarfBuzz (experimental, disabled by default).
• Adds a shell early-exit-guard to not instantly close the terminal window but print a message instead and wait for any key press in order to close.
• Adds missing config option read_buffer_size to default contour.yml.
• Adds new config option reflow_on_resize to mandate whether or not text reflow is enabled on primary screen. If this option is false, it cannot be enabled programmatically either.
• Adds new config option on_mouse_select to decide what action to pick when text has been selected (copy to clipboard or copy to selection-clipboard, or do nothing)
• Unicode data updated to version 14.0 (release). See Announcing The Unicode® Standard, Version 14.0.
• Do not force OpenGL ES on Linux anymore.
• Changes default (Sixel) image size limits to the primary screen's pixel dimensions (#408).
• Changes font locator engine default on Windows to DirectWrite (#452).
• Changes tcap-query feature from experimental to always enabled (not configurable anymore).
• Automatically detect if contour or contour-latest terminfo entries are present use that as default.
• Fixes VT sequences that cause a cursor restore to sometimes crash.
• Fixes terminfo installation path on OS/X and tries to auto-set TERMINFO_DIRS to it on startup (#443).
• Fixes terminfo entry pairs.
• Fixes SGR 24 to remove any kind of underline (#451).
• Fixes font fallback for open_shaper where in rare cases the text was not rendered at all.
• Fixes CPU load going up on mouse move inside terminal window (#407).
• Fixes terminfo entries accidentally double-escaping \E to \\E (#399).
• Fixes RGB color parsing via ':2::Pr:Pg:Pb' syntax and also adapt setrgbf & setrgbb accordingly.
• Fixes SEGV with overflowing (Sixel) images (#409).
• Fixes XTSMGRAPHICS for invalid SetValue actions and setting Sixel image size limits (#422).
• Fixes internal pixel width/height tracking in VT screen, which did affect sizes of rendered Sixel images (#408).
• Fixes configuring a custom shell on OS/X (#425).
• Fixes off-by-one bug in builtin box drawing (#424).
• Fixes assertion in text renderer with regards to colored glyphs.
• Fixes Sixel background select to support transparency (#450).
• Fixes session resuming on KDE desktop envionment which is respawing all Contour instances upon re-login but failed due to invalid command line parameters (#461).
• Fixes Meta+Key keyboard inputs being ignored.
• Changes DECSDM such that it works like a real VT340; also xterm, as of version 369, changed that recently (#287).
• Adds context menu support for KDE.

• Improved performance (optimized render loop, optimized grapheme cluster segmentation algorithm)
• Improves selection to better automatically deselect on selected area corruption.
• Fixes ioctl(..., TIOCGWINSZ, ...) pixel values that were only set during resize but not initially.
• Fixes mouse in VIM+Vimspector to also change the document position when moving the mouse.
• Fixes SGR decorations to use designated underline thickness and underline position.
• Fixes font glyph render in some corner cases where the rendered glyph did result in rectangle garbage on the screen.
• Fixes copying the selection containing trailing whitespaces.
• Fixes hard-reset with regards to default tab width.
• Fixes VT sequence DECRQPSR for DECTABSR.
• Fixes keyboard keys for F1..F4 when pressed with and without modifiers.
• Fixes OSC 8 hyperlink rendering when scrolled.
• Fixes SGR 1 (bold) wrongly applied on indexed background colors.
• Fixes text shaping sometimes showing missing glyphs instead of the actual glyphs (by changing the last-resort font fallback mechanism to chape each cluster individually with its own font fallback).
• Preserve active profile when reloading config, and forces redraw after config reload.
• Changes config entry profile.*.font_size to profile.*.font.size.
• Changes config entries scrollbar.* to profile.*.scrollbar.*.
• Changes behavior of live configuration reload, which is not default anymore and must be explicitly enabled via CLI parameter --live-config.
• Changes behaviour when receiving U+FE0E (VS15) to not enforce the width of 1 but leave it as is (usually 2). This seems to match what the web browser is doing, too.
• Changes the CLI command line interface syntax.
• Removes tab_width configuration. Tab width cannot be configured anymore but remaints by default at 8.
• Adds basic automatically created archive for Arch Linux to the CI build artifacts page and release page.
• Adds support for bypassing the mouse protocol via Shift-click (configurable via bypass_mouse_protocol_modifier)
• Adds improved debug logging. via CLI flag -d (--enable-debug) to accept a comma seperated list of tags to enable logging for. Appending a * at the end of a debug tag will enable all debug tags that match prefix its prefix. The list of available debuglog tags can be found via CLI flag -D (--list-debug-tags).
• Adds support for different font render modes: lcd, light, gray, monochrome in profiles.NAME.font.render_mode (default: lcd).
• Adds support for different text render engines: OpenShaper, DirectWrite and CoreText for upcoming native platform support on Windows (and later OS/X).
• Adds support for different font location engines: fontconfig (others will follow).
• Adds experimental text reflow.
• Adds OpenFileManager action to configuration.
• Adds terminal identification environment variables TERMINAL_NAME, TERMINAL_VERSION_TRIPLE and TERMINAL_VERSION_STRING.
• Adds config option mode to input modifiers for additionally filtering based on modes (alt screen, app cursor/keypad, text selection modes, ...).
• Adds config option profile.*.terminal_id: STR to set the terminal identification to one of VT100, VT220, VT340, etc.
• Adds config option profile.*.maximized: BOOL to indicate maximized state during profile activation.
• Adds config option profile.*.fullscreen: BOOL to indicate fullscreen state during profile activation.
• Adds config option profile.*.font.strict_spacing: BOOL to indicate that only monospace fonts may be used.
• Adds config option profile.*.font.TYPE.weight: WEIGHT and profile.*.fonts.TYPE.slant: SLANT options (optional) along with profile.*.fonts.TYPE.family: STRING.
• Adds config option profile.*.font.TYPE.weight: WEIGHT and profile.*.fonts.TYPE.slant: SLANT options (optional) along with profile.*.fonts.TYPE.family: STRING.
• Adds config option profile.*.font.dpi_scale: FLOAT to apply some additional DPI scaling on fonts.
• Adds config option profile.*.font.builtin_box_drawing: BOOL to use pixel-perfect builtin box drawing instead of font provided box drawing characters.
• Adds config option profile.*.refresh_rate: FLOAT to configure how often the terminal screen will be rendered at most when currently under heavy screen changes. A value of "auto" will use the currently connected monitor's refresh rate.
• Adds configuration's action ToggleAllKeyMaps to enable/disable intercepting and interpreting keybinds. The one that did toggle it will not be disabled.
• Adds configuration's action ClearHistoryAndReset to clear the history, and resetting the terminal.
• Adds VT sequence for enabling/disabling debug logging. CSI ? 46 h and CSI ? 46 l and CLI option -d.
• Adds VT sequence for querying/setting current font OSC 50 ; ? ST and OSC 50 ; Font ST (and OSC 60 Ps Ps Ps Ps Ps ST for a more fine grained font query/setting control).
• Adds VT sequence CSI 18 t and CSI 19 t for getting screen character size. Responds with CSI 8 ; ; t and CSI 9 ; ; t respectively.
• Adds VT sequence to capture the current screen buffer CSI > LineMode ; StartLine ; LineCount t giving the respone back on stdin via OSC 314 ; ST, and feature detection via DA1 number 314.
• Adds VT sequence DECSNLS for setting number of lines to display.
• Adds VT sequence CSI Ps b (REP) for repeating the last graphical character Ps times.
• Adds VT sequence OSC 4 ; INDEX ; COLOR ST for setting or querying color palette (if COLOR is ? instead of a color spec).
• Adds VT sequence OSC 104 ; INDEX ST for resetting color palette entry or complete palette (if no (index is given).
• Adds VT sequence DECCRA to copy a rectangular area.
• Adds VT sequence DECERA to erase a rectangular area.
• Adds VT sequence DECFRA to fill a rectangular area.
• Adds VT sequence CSI > q (XTVERSION) to query terminal identification (name and version). Response comes as DCS >| Contour ContourVersion ST.
• Adds VT sequence DECRQM to request ANSI/DEC modes states (set / unset / not recognized).
• Adds new CLI command: contour capture ... to capture the screen buffer.
• Adds new CLI command: contour set profile to NAME to change the profile on the fly.
• Adds new CLI command: contour generate terminfo output OUTPUT_FILE to create a Contour terminfo file.
• Adds new CLI command: contour generate config output OUTPUT_FILE to create a new default config.
• Adds new CLI command: contour generate integration shell SHELL output OUTPUT_FILE to create the shell integreation file for the given shell (only zsh supported for now). Also adds a pre-generated shell integration file for Linux (and OS/X) to /usr/share/contour/shell-integration.zsh.
• Unicode data updated to version 14.0 beta. See https://home.unicode.org/unicode-14-0-beta-review.
• Adds support for building with Qt 6 (disabled by default).
• Adds support for building with mimalloc (experimental, disabled by default).

Changes since rc1

• change versioning scheme, adding 4th component to reflect current CI run number
• Last-resort font fallback to shape each grapheme cluster individually to increase success rate
• VS16 always having width 2
• configuration log messages improved
• glitch in box drawing arcs fixed
• revive Alt + mouse button input mapping with a temporary workaround
• Fixes some XTSMGRAPHICS properties.
• Changed "Bright black" RGB color from #000000 to #707070.
• Set default terminal size to 80x25 (was 130x30).
• Mac OS/X: Default shell changed to login -fp $USERNAME (was: login shell as reported by getpwuid($uid)