v6.0.0

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Features

• #​5453 Add synchronized output support (DEC mode 2026)
• #​5436 add range to IHTMLSerializeOptions
• #​5334 Support shadow dom in webgl renderer
• #​5285 Support detailed ligatures and variants
• #​5251 progress-addon
• #​5234 Add reflowCursorLine option
• #​5224 putty-style ED2 sequence handling as terminal option
• #​5107 Add top/bottom border overview ruler options
  • ⚠️ This is a breaking change, ITerminalOptions.overviewRulerWidth is now a property of ITerminalOptions.overviewRuler
• #​5096 Integrate base/ platform from VS Code and adopt scroll bar
  • ⚠️ This is a potential breaking change, the viewport/scroll bar works very differently now
• #​5092 Add support for ESM via esbuild
• #​5034 Expose onWriteParsed on API
• #​4220 Add support to ANSI OSC52

Fixes

• #​5445 Prefer performance.now() over Date.now()
• #​5437 Prevent entire page from scrolling when scrolling in alt buffer with mouse event off
• #​5423 Clear selection on vertical resize
• #​5411 Fix teleport when exiting out of alt buffer. v2
• #​5391 Bring back partial wheel tracking
• #​5390 Fix scrollbar teleport after exiting alt buffer
• #​5386 fix: ensure that currentRow can not go out of the range
• #​5385 Fix terminal find when wrapped
• #​5355 Add note about reverse tabnapping
• #​5346 Remove alt -> ctrl+arrow hack in favor of embedder-specific solutions
  • ⚠️ This is a breaking change, you will need to add keybindings in your code if you want alt to map to ctrl still
• #​5337 Fix finding terms across wrapped lines
• #​5335 webgl: Ignore alpha channel when allowTransparency is false
• #​5328 Refresh viewport after clear or ED
• #​5305 Fix issue where listeners remain after WebglRenderer throws
• #​5291 Make ProgressAddon.onChange non undefined
• #​5282 Fixed CapsLock triggering input twice in MacOS.
• #​5279 Fixes: #​5270 regex case-sensitive should behave like monaco
• #​5278 Handle glyph widths up to the maximum device texture size
• #​5277 Disable ligatures when cursor is in range
• #​5276 Fix selection rendering on ligatures in both renderers
• #​5265 Revert to cursor options after DECSCUSR 0
• #​5263 Make textarea readonly when disableStdin is set
• #​5262 Blend cursorAccent with background too
• #​5260 Blend cursor with background to support alpha in webgl
• #​5253 bug: properly render the terminal when open() is called again
• #​5249 Fix click event bug caused by DomRenderer replaceChildren behavior
• #​5209 Ensure last ligature cell is updated
• #​5208 Set liga font feature when ligatures is enabled
• #​5182 fix #​5181
• #​5171 Fix links sometimes not activating
• #​5139 Fix image addon not being able to render some jpeg images in IIP
• #​5127 Fix scroll dimensions when switching buffers
• #​5122 Use main document to create viewport element
• #​5102 Ensure decorations are refreshed when origin of scroll event is buffe…
• #​5099 Remove overflow to allow decorations outside terminal
• #​5088 Sync DOM decoration styles when line height/width changes
• #​5067 Correct addon-clipboard ctor types
• #​5027 Finish OSC hyperlinks when the second param is only whitespace
• #​5024 Fix duplicate input for some IMEs
• #​5020 Escape Unsafe HTML Characters in addon-serialize
• #​5003 Support semi-colons in OSC 8 hyperlink URIs
• #​4984 Clear timer when dispose

Performance

• #​5403 Add SearchLineCache for improved search performance
• #​5066 Speed up clearing all markers, mass event listener dispose
• #​5038 Speed up insertion and deletion of values in SortedList by batching and deferring to idle task
• #​5037 Prevent smooth scroll from running more than once per frame
• #​4936 fix: memory leak in CoreBrowserService
• #​4933 Check after updating the SelectionRenderModel
• #​4879 Align character position in a11y tree with the actual rendering

Internal/minor changes

• #​5462 Remove deprecated windowsMode and fastScrollModifier
  • ⚠️ This is a breaking change, these deprecated properties of ITerminalOptions have been removed
• #​5461 Remove need for glob module
• #​5460 Git ignore test-results/
• #​5452 Fix tsc build - upgrade glob version
• #​5450 Fix wrong export path for ESM target in [addon-unicode-graphemes]
• #​5449 Configure "exports" field in package.json [headless]
• #​5446 Migrate from yarn to npm, node 18 -> 22, use npm workspaces
• #​5442 Fix headless module path
• #​5425 Only show char codes for parsing data on trace
• #​5422 Explain filtering unit tests by file
• #​5421 Use Windows PowerShell instead of pwsh 7 in demo
• #​5420 Only log character codes for trace log
• #​5413 Adding EmuDevz to the "Real-world uses" list
• #​5407 Improve Copilot instructions and add test guidelines
• #​5406 Refactor search addon into multiple files, add unit tests
• #​5405 Refactor search addon interfaces
• #​5404 Replace timeout handling with disposableTimeout
• #​5402 Update GitHub Copilot instructions with test details
• #​5401 Refactor search addon types and internal handling
• #​5399 Refactor search constants and improve documentation
• #​5398 Add proper typing for search results change event
• #​5379 Bump form-data from 4.0.0 to 4.0.4 in /addons/addon-ligatures
• #​5362 Move copilot steps to correct folder
• #​5359 Add copilot setup steps
• #​5358 Revert conpty-specific reflow handling
• #​5349 Add comprehensive tests for alt+shift+letter keyboard combinations
• #​5345 Add instructions to help Copilot coding agent
• #​5329 Update and pin esbuild
• #​5322 Bump axios from 1.7.4 to 1.8.2 in /addons/addon-ligatures
• #​5321 Reflow on resize using similar logic to conpty
• #​5317 docs: added usage tip for registerMarker()
• #​5313 Revert "Merge pull request #​5253 from akphi/patch-1"
• #​5308 Update AccessibilityManager.ts to use textContent rather than innerText
• #​5290 Progress polish
• #​5286 Move WebGL addon-specific code into addon
• #​5281 Pin Ubuntu 22 to fix playwright GH Actions issue for now
• #​5280 Remove courier fonts from defaults
• #​5275 Demo test button for common ligatures
• #​5252 Fix ReferenceError in publish.js
• #​5247 Update README.md - add ecmaOS as Use Case
• #​5219 Add new site to Real-world uses
• #​5218 Bump cross-spawn from 7.0.3 to 7.0.6
• #​5212 chore(addons/fit): fix typo
• #​5203 Don't hide build folders
• #​5202 Only resolve ligatures externals in commonjs environment
• #​5199 Store the DI decorator's id in specific property (#​5131).
• #​5196 Add pyTermTk HTML5 Exporter project to "Real-world uses"
• #​5180 Forward integration test exit code to running proc
• #​5166 Bump express from 4.19.2 to 4.20.0
• #​5165 Bump axios from 1.6.0 to 1.7.4 in /addons/addon-ligatures
• #​5157 Bump path-to-regexp from 1.7.0 to 1.9.0 in /addons/addon-ligatures
• #​5151 Fix 'npm run package' in addon-unicode-graphemes
• #​5148 Bump micromatch from 4.0.5 to 4.0.8
• #​5143 Publish commit and set peerDependencies to @​xterm/xterm beta when publishing
• #​5141 Bump webpack from 5.88.2 to 5.94.0
• #​5140 Add Filet Cloud to Real-world uses
• #​5136 Fix description for WebglAddon class in @​xterm/addon-webgl
• #​5130 Remove xterm- prefix from addon mjs output
• #​5124 Update node-pty, use conpty.dll
• #​5106 Move to vs/base disposables
• #​5105 Remove the canvas renderer
  • ⚠️ This is a breaking change, this addon no longer exists and we recommend using either the DOM renderer or WebGL
• #​5104 Remove EventEmitter in favor of vs/base/common/event's Emitter
• #​5103 remove _workCell in InputHandler.
• #​5095 Remove procfile
• #​5094 Add build flow images and move logo into new images folder
• #​5093 Align npm and test script names
• #​5091 Ignore EPIPE exception on Windows when reloading demo client
• #​5090 Suppress unrecognized option warning in demo
• #​5089 Remove src dts files and correct exports
• #​5086 Bump ws from 7.5.9 to 8.17.1
• #​5085 Run other integration tests in CI
• #​5083 typescript@​5.5
• #​5082 Fix .eslintrc.json warnings, move deprecated to stylistic/ts
• #​5081 Simplify GH action names and remove test/api project
• #​5080 Migrate remaining API tests to playwright and remove API test infrastructure
• #​5079 Migrate more API tests to playwright
• #​5078 Get tests working on node that requires shell arg
• #​5071 Bump ws from 8.13.0 to 8.17.1
• #​5070 Bump braces from 3.0.2 to 3.0.3
• #​5059 Add balena to real world uses
• #​5056 Add app OpenSFTP to README.md
• #​5054 Add powerline git, LN, lock symbols
• #​5052 Update README.md
• #​5049 Add eva pro to README.md
• #​5018 Bump express from 4.18.2 to 4.19.2
• #​5010 Bump follow-redirects from 1.15.3 to 1.15.6 in /addons/addon-ligatures
• #​4989 adding Wave Terminal to the README
• #​4963 Polish convertEol api jsdoc
• #​4940 Update global object fix
• #​4865 Update devcontainer