chore(deps): update opentui

[renovate]

Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
@opentui/core (source)	0.5.14 → 0.6.6
@opentui/core-darwin-arm64 (source)	0.5.14 → 0.6.6
@opentui/core-darwin-x64 (source)	0.5.14 → 0.6.6
@opentui/core-linux-arm64 (source)	0.5.14 → 0.6.6
@opentui/core-linux-x64 (source)	0.5.14 → 0.6.6
@opentui/core-win32-arm64 (source)	0.5.14 → 0.6.6
@opentui/core-win32-x64 (source)	0.5.14 → 0.6.6
@opentui/solid (source)	0.5.14 → 0.6.6
solid-js (source)	1.9.15 → 1.9.17

---

Release Notes

anomalyco/opentui (@​opentui/core)

v0.6.6

Compare Source

Previously, most layout setters ignored null, undefined, or both, so the node kept its old style. As a result, a React or Solid component that removed a style prop kept the old layout. A plugin that read Unit.Undefined from a getter also could not write that value back. In 0.6.6, a nullish write restores the default that the constructor uses when the option is omitted:

const box = new BoxRenderable(renderer, { paddingX: 2 })
box.paddingLeft = 5 // pads the left side by 5
box.paddingLeft = undefined // pads it by 2 again, from paddingX

Margin, padding, gap, min and max sizes, and flexBasis become unset, so an edge falls back to its shorthand again. top, right, bottom, and left also unset the native edge. Before, the getter reported undefined while layout kept the old offset. width and height become "auto", position becomes "relative", overflow becomes "visible", and visible becomes true. Invalid values are still ignored. Not every default comes back. Class defaults such as the row direction of ScrollBoxRenderable stay as they are, and flexShrink becomes 1.

If a custom renderable passes its own width or height to super(), it should override the new protected defaultDimension(kind) method. A nullish write then restores that size instead of "auto". Built-in classes that size themselves, such as InputRenderable, TabSelectRenderable, and ASCIIFontRenderable, already override it.

Added

• core: A custom renderable can override protected defaultDimension(kind) to set the width or height that a nullish write restores. See Custom renderables. (#​1678)

Changed

• core: Assigning null or undefined to a layout property restores the default for an omitted option, and removing a React or Solid style prop does the same. See Layout. (#​1678)
• core: Assigning null or undefined to visible shows the node. Before, null hid the node, so assign false to hide it. (#​1678)

Fixed

• core: fillRect, drawBox, setCell, drawChar, and other calls with u32 fields now say "must be a non-negative integer" for NaN, Infinity, fractional, and negative values. Before, the error said that the value exceeded the u32 limit. See Buffer API. (#​1674)
• core: A box title or bottomTitle over 64 KiB throws the same RangeError as drawText instead of a NativeError with the InvalidArgument status. See Box. (#​1674)
• core: Nesting deeper than 256 levels, counting the root, throws a NativeError with the message "Scene nesting depth exceeds the native limit". Before, the message gave only the ObjectLimit status. See Layout. (#​1674)

API changes and documentation: https://opentui.com/docs/releases/0.6.6

What's Changed

• core: name the real cause in three boundary errors (u32 fields, box titles, nesting depth) by @​simonklee in #​1674
• core: restore layout defaults on nullish writes by @​simonklee in #​1678

Full Changelog: anomalyco/opentui@v0.6.5...v0.6.6

v0.6.5

Compare Source

OpenTUI 0.6 removed Renderable.getLayoutNode(). Before 0.6, plugins used it to read the layout styles of host renderables that they did not create. Some plugins saved a container's getMaxWidth() and getAlignSelf() so they could restore the container after they restyled it. Others checked the host layout with getFlexDirection(), or sized a panel inside a padded sidebar with getPadding(). 0.6 kept only getWidth() and getMargin(edge), so this code had nothing to call.

In 0.6.5, renderables have the other style getters of a Yoga Node, with the same names and return types. To move, remove the getLayoutNode() call:

// Before 0.6
const saved = host.getLayoutNode().getMaxWidth()

// 0.6.5
const saved = host.getMaxWidth()

These getters return the declared style, not the computed layout. A write shows up at once, before the next layout pass. After box.maxWidth = 40, box.getMaxWidth() returns { unit: Unit.Point, value: 40 }, but box.width still holds the computed width from the last pass. After destroy(), the getters do not throw. They return Yoga's unset values, as getWidth() does.

An edge getter reads only the value set for that exact edge, so this case needs care. The padding option sets Edge.All, paddingX sets Edge.Horizontal, and paddingLeft sets Edge.Left. After padding: 2, getPadding(Edge.Left) returns a Unit.Undefined value, but layout still pads the left side by 2. That is because Yoga falls back from Edge.Left to Edge.Horizontal and then to Edge.All. To get the declared left padding, check the edges in that same order:

import { Edge, Unit } from "@opentui/core/yoga"

const left = [Edge.Left, Edge.Horizontal, Edge.All]
  .map((edge) => sidebar.getPadding(edge))
  .find((value) => value.unit !== Unit.Undefined)

Renderables still have no getter for computed padding, margin, or border. For padding declared in points, the declared value and the computed value are the same.

Added

• core: Renderables have the remaining Yoga Node style getters, such as getHeight(), getMaxWidth(), getPadding(edge), getGap(gutter), getFlexDirection(), and getAlignSelf(). Use them instead of style reads through getLayoutNode(). See Layout. (#​1667)

API changes and documentation: https://opentui.com/docs/releases/0.6.5

What's Changed

• core: read declared layout styles on renderables by @​simonklee in #​1667

Full Changelog: anomalyco/opentui@v0.6.4...v0.6.5

v0.6.4

Compare Source

Fixed

• core: Kitty images in iTerm2 no longer go black or blank after a move, a scroll, or a layout change. The renderer now deletes each old placement by its placement id, because iTerm2 also frees the image data when it gets an image-wide delete. (#​1662)

API changes and documentation: https://opentui.com/docs/releases/0.6.4

What's Changed

• native: delete Kitty placements by id so iTerm2 keeps the image by @​jlongster in #​1662

Full Changelog: anomalyco/opentui@v0.6.3...v0.6.4

v0.6.3

Compare Source

A coding agent such as opencode can wait for minutes at a permission prompt in a
background tab. Before this release, the terminal could not tell the user about it.
In 0.6.3, the agent can report its state to the terminal:

renderer.setProgramStatus({ state: "blocked", kind: "permission", app: "opencode", message: "Allow bash?" })

This call writes one report in the
Program Status Protocol,
OSC 7501. The terminal decides how to show the report. It can use a tab
indicator, an inbox entry, or a desktop notification. A terminal that does not
implement the protocol ignores the sequence, so setProgramStatus() does not
wait for capability detection. capabilities.program_status only tells you that
a reply arrived. A false value can also mean that the reply has not arrived
yet.

Each report replaces one record, and a field that a report omits is gone from
the record. Send app and title with every report that needs them. A program
that runs several tasks can give each task its own record with an id. It can
then remove that record with clear:

renderer.setProgramStatus({ state: "working", id: "subagent-1", title: "Explore", progress: 40 })
renderer.setProgramStatus({ state: "clear", id: "subagent-1" })

Records belong to the terminal, not to the renderer. OpenTUI does not clear them
when the renderer is destroyed or suspended. When the process exits, the
terminal drops working and blocked records. It keeps done and error
records for the user to find. If the user should see the result, report done or
error before the program exits. OpenTUI also does not wrap reports in tmux or
GNU Screen passthrough. The outer terminal cannot tell panes apart or see the
program exit, so a working record from a pane would never clear.

C hosts send the same report with ot_session_control() and
OT_CONTROL_PROGRAM_STATUS. The payload is an ot_session_program_status struct,
followed by the id, app, title, and message bytes. Native code checks every
report on both paths before it writes anything. A report that a terminal would
discard or only partly read fails at the call.

Added

• core: renderer.setProgramStatus(status) and
  NativeSession.setProgramStatus(status) send one OSC 7501 program status
  report. They return false when OpenTUI does not queue the report, and they
  throw for an invalid report. See
  Program status.
  (#​1657)
• core: TerminalCapabilities.program_status is true when the terminal
  replies to the OSC 7501 ; ? query. The renderer sends this query at startup
  with the other capability queries, but not to foot. See
  Terminal capabilities.
  (#​1657)
• native: ot_session_control() with OT_CONTROL_PROGRAM_STATUS and an
  ot_session_program_status payload sends a program status report.
  OT_CAP_PROGRAM_STATUS is set when the terminal replies to the query. See
  Program status.
  (#​1657)

Changed

• native: ot_session_control() now checks the payload before the terminal
  phase. While the terminal is not active, an invalid payload returns
  OT_INVALID_ARGUMENT instead of OT_INVALID_PHASE. A title with control
  characters is one example. See Frames and output.
  (#​1657)

API changes and documentation: https://opentui.com/docs/releases/0.6.3

What's Changed

• core: report program status with OSC 7501 by @​simonklee in #​1657

Full Changelog: anomalyco/opentui@v0.6.2...v0.6.3

v0.6.2

Compare Source

In 0.6.1, editors started to show control characters as notation. As a result,
an editor offset is no longer the same as a JavaScript string width. The string
"\f" has a width of 0, but the editor shows it as ^L in two cells.
EditBuffer.measureText() gives the correct offset, but only for a buffer you
already have. To get the offset of text that was not in an editor yet, code had
to create an EditBuffer only to measure that text.

In 0.6.2, measureEditText() measures text without a buffer. It returns the
same value as measureText() on an edit buffer with the same width method and
tab width. Pass the settings of the editor that will hold the text. Textarea
and Input use the renderer's width method and the default tab width, which is
2:

import { createCliRenderer, measureEditText } from "@opentui/core"

const renderer = await createCliRenderer()
measureEditText("\f@file", { widthMethod: renderer.widthMethod }) // 7: ^L takes two cells
measureEditText("a\tb", { widthMethod: renderer.widthMethod, tabWidth: 4 }) // 6

C programs get the same measurement from ot_edit_measure_text(). It takes a
context, but no edit buffer handle.

Added

• core: measureEditText(text, { widthMethod, tabWidth }) returns the
  editor offset at the end of text without an EditBuffer. tabWidth
  defaults to the tab width of a new edit buffer. See
  Editing buffers and views.
  (3ab0b954a)
• native: ot_edit_measure_text() gives the same measurement through the C
  interface. A tab_width over 255 fails. See
  Editing buffers and views.
  (3ab0b954a)

Fixed

• native: A bold, dim, italic, underlined, blinking, inverse, hidden, or
  struck-through cell in the last column of a row no longer gives its
  attributes to the next cells that the renderer draws. A row that ends in such
  a cell writes 4 more bytes. See Frames and output.
  (#​1652)
• native: If you type an emoji with a skin-tone modifier, a ZWJ sequence,
  Hangul jamo, or U+FE0F in an editor, the editor now stores its correct width.
  Before, 👍🏽 took 4 cells instead of 2, so the cursor, wrapping, selection, and
  Right key were wrong. See Textarea.
  (#​1650)
• native: A combining mark that starts a new text chunk now draws on the
  character before it, for example U+0301 typed after abc in an editor or
  added with TextBuffer.append. The renderer drops a mark that would make a
  1-cell character 2 cells wide, such as U+FE0F. See
  Text and terminal cells.
  (#​1651)
• native: An embedded terminal redraws all rows when the child changes the
  default foreground or background color (OSC 10, 11, 110, or 111) or sets
  reverse video on or off (CSI ? 5 h or CSI ? 5 l). Before, rows on the
  screen kept the old colors. See
  Embedded terminal.
  (#​1649)
• core: If the host terminal uses the Kitty keyboard protocol, an embedded
  terminal now sends keypad Enter, keypad navigation, lock, Print Screen, Pause,
  and left and right modifier keys to the child. Keypad digits reach a Kitty
  child as keypad keys, and Ctrl+keypad 0 no longer arrives as a bare 0. See
  Embedded terminal.
  (#​1648)
• core: parseKeypress() no longer changes the caller's Buffer when it
  decodes a single byte above 127 as a meta key. The input parser of the
  renderer did not have this problem. See
  Keyboard input.
  (#​1653)

API changes and documentation: https://opentui.com/docs/releases/0.6.2

What's Changed

• bench: time only drawBox in the box benchmark by @​simonklee in #​1643
• native: draw a combining mark that starts a chunk by @​simonklee in #​1651
• native: redraw embedded terminal when default colors change by @​simonklee in #​1649
• core: encode embedded terminal Kitty keypad, lock, and modifier keys by @​simonklee in #​1648
• native: measure merged editor chunks instead of adding their widths by @​simonklee in #​1650
• core: keep parseKeypress from changing the caller's Buffer by @​simonklee in #​1653
• native: close an attributed run at the end of its row by @​simonklee in #​1652

Full Changelog: anomalyco/opentui@v0.6.1...v0.6.2

v0.6.1

Compare Source

In 0.6.0, EditBuffer.setText("a\fb") throws NativeError. The editor places
its cursor by display cell, and a control character took no cells, so the
cursor could not move past it or delete it. In 0.5.14, which accepted
controls, the cursor in "a\fb" could not reach column 0, Backspace stopped at
"a\f", and rendering "A\x07B\x1bC\fD" wrote raw BEL and ESC bytes to the
terminal. Rejecting the text stopped that, but every application then had to
remove these characters before it could edit a string.

In 0.6.1, editors keep control characters and show them the way Vim and
Neovim do. The text "a\fb\0c\x1bd\x85e\x7ff" shows as a^Lb^@c^[d<85>e^?f. A
C0 control or DEL is caret notation in two cells, and a C1 control is
lowercase hex in four cells. The notation changes only how the text looks. The
cursor stops before each control, one Backspace deletes it, and getText(),
undo, and selection copy return the original characters. Tab, carriage
return, and line feed work as before. Read-only text, such as
TextRenderable, still gives controls no cells.

This has one cost. An editor offset is no longer the same as a JavaScript
string width. Bun.stringWidth("\f") is 0, but ^L takes two cells. Code
that calculates editor offsets from string widths, such as code that places an
extmark after a match, must ask the buffer instead. measureText() measures
text the way the buffer lays it out, and getTextRange() converts an offset
back to a string index:

buffer.setText("\f@file")
const text = buffer.getText()
const offset = buffer.measureText(text.slice(0, text.indexOf("@"))) // 2: ^L takes two cells
buffer.getTextRange(0, offset).length // 1: the index of "@"

Added

• core: EditBuffer.measureText(text) returns the display offset at the
  end of text as the buffer would lay it out. It counts each line break as
  one. See Editing buffers and views.
  (#​1636)
• native: ot_edit_buffer_measure_text() gives the same measurement
  through the C interface. See
  Editing buffers and views.
  (#​1636)

Changed

• core: EditBuffer.setText(), insertText(), and replaceText(),
  Textarea initialValue, Input.value, and placeholders accept control
  characters and do not throw NativeError. An editor shows C0 controls and
  DEL as ^@ to ^_ and ^? in two cells, and C1 controls as <80> to
  <9f> in four cells. See Editing buffers and views.
  (#​1636)
• core: Paste in Textarea and Input keeps control characters. It
  removes terminal escape sequences, including a lone ESC and an incomplete
  sequence, the same way on Bun and Node. Core no longer depends on
  strip-ansi. See Editing buffers and views.
  (#​1636)

Fixed

• core: Extmarks and the Input cursor use native display offsets. As a
  result, they keep the correct position in text that contains control
  characters. See Editing buffers and views.
  (#​1636)

API changes and documentation: https://opentui.com/docs/releases/0.6.1

What's Changed

• editor: show control characters as notation by @​simonklee in #​1636

Full Changelog: anomalyco/opentui@v0.6.0...v0.6.1

v0.6.0

Compare Source

OpenTUI 0.5 kept the renderable tree in JavaScript. On each frame, JavaScript
walked the tree and read each node's position back from Yoga. It then made one
native call for each draw, so the cost of a frame grew with the number of
nodes and draws. In 0.6.0, native code owns the tree. Each Renderable has a
node in a native scene, which holds the node's Yoga node and paint state.
Layout and paint setters stage their changes, and Core sends all staged
changes to native code in one call before each frame step. Native code then
lays out, clips, and paints the scene and fills the hit grid. It draws most
built-in renderables without a call to JavaScript. When no visible node has a
JavaScript hook, one native frame step lays out and paints the whole frame.
Rendering pipeline follows a
complete frame.

The built-in renderables and the React and Solid bindings keep their option
names, but a few option values now throw, such as enableLayout: false.
Custom renderables may need a little work. Renderable no longer has
render(), getLayoutNode(), or a protected yogaNode. Draw in
renderSelf(), renderBefore, or renderAfter, and report content size with
setMeasureProvider(). Paint hooks also work differently. A hook of an
unbuffered renderable now receives a recording buffer: OpenTUI stores the
hook's draw calls, and native code plays them back at the node's place in
paint order. Painting never stops to call JavaScript, so a hook cannot tear
the frame. But a hook can no longer read the frame's cells. To read cells, a
hook must draw into a buffer that the renderable owns and compose that
buffer, or the work must move to a post-process function. With
buffered: true, the hooks draw into such a buffer, and OpenTUI composes it.
Custom renderables shows a complete
example.

Native rendering resources now belong to one owner, a native Context.
Buffers, text buffers, views, syntax styles, images, and scene nodes cross the
native boundary as generational handles instead of raw pointers. A stale
handle fails with an error instead of touching freed memory, and destroying a
Context releases everything that it owns. The factories that used to create
resources without an owner now take one. For a resource that a renderer
draws, pass renderer.nativeScene:

// 0.5: SyntaxStyle.fromStyles(styles)
const syntaxStyle = SyntaxStyle.fromStyles(styles, renderer.nativeScene)

// 0.5: OptimizedBuffer.create(40, 10, "unicode")
const buffer = OptimizedBuffer.create(40, 10, "unicode", {
  owner: renderer.nativeScene,
})

Image factories take only a ResourceContext as their owner. For the
renderer's Context, pass renderer.nativeScene.resourceContext. Without a
renderer, create a Context with
new ResourceContext({ objectCapacity, renderCellsMax }), and call its
destroy() method when you are done. objectCapacity is the initial number
of object slots, and renderCellsMax limits the cells in each buffer.
API and symbol index lists each removed or
changed API with its replacement.

Terminal transitions are now asynchronous. suspend() and resume() return
promises. destroy() still returns at once, but the terminal restoration and
the remaining output finish later. Before you reuse the streams, or before a
deliberate exit, await renderer.closed:

await renderer.suspend()
// Run an editor or a shell in the terminal.
await renderer.resume()

renderer.destroy()
await renderer.closed

The native library now has a C interface. opentui.h declares a C ABI of
ot_* functions, and the opentui Zig module gains the same Context, scene,
and Session model. A C or Zig program can build a scene and write frames with
no JavaScript runtime. The ABI is experimental, so use the header, library,
and bindings from the same revision.
Native rendering starts with a box and a label.

One fix changes colors in some SSH sessions. Inside an SSH or mosh login,
OpenTUI detects remote mode automatically. In that mode, it used to stop
reading the environment before it read TERM and COLORTERM. As a result,
every remote terminal got truecolor output, and a 256-color terminal such as
GNU screen 4.x showed the UI without color. OpenTUI now reads these two keys.
This has a cost. A truecolor terminal that reaches the server with
TERM=xterm-256color and no COLORTERM used to get exact colors by accident.
Examples are iTerm2 and WezTerm over a stock macOS ssh client, which does not
forward COLORTERM. They now get 256-color approximations. A Kitty XTVERSION
reply still turns on truecolor. To keep truecolor in other terminals, export
COLORTERM=truecolor on the server, forward it with SendEnv COLORTERM and
AcceptEnv COLORTERM, or pass it in the renderer's environment option.

Breaking changes

• core: Renderable.render(), updateLayout(), updateFromLayout(),
  canReuseRenderCommandList(), getLayoutNode(), the protected yogaNode,
  the RenderCommand type, and RootRenderable.calculateLayout() are
  removed. Draw in renderSelf(), renderBefore, or renderAfter, and use
  setMeasureProvider(), invalidateIntrinsicSize(), and getLayout() for
  size and layout. Protected members such as _x, _y, getScissorRect(),
  and _getVisibleChildren() are also removed. Use x, y, screenX, and
  screenY, and the viewportCulling option of ScrollBox. See
  Custom renderables.
  (#​1479)
• core: The enableLayout: false option throws. on("resized") and
  on("layout-changed") throw on a renderable that is not the root, where
  these listeners never ran. Use onSizeChange instead. See
  Layout.
  (#​1479)
• core: Paint hooks of an unbuffered renderable get a recording buffer
  that cannot read cells, and renderer.nextRenderBuffer accepts drawing only
  in a post-process function. buffer.buffers works only in a post-process
  function. Elsewhere, use buffer.withBuffers(callback). To read or change
  cells in a hook, set buffered: true, or draw into a buffer that you own and
  compose it. For the whole frame, use a post-process function. See
  Rendering pipeline.
  (#​1479)
• core: addToHitGrid(), pushHitGridScissorRect(),
  popHitGridScissorRect(), and clearHitGridScissorRects() are removed from
  CliRenderer and RenderContext. Native code adds a hit area for each
  visible node, and renderer.hitTest(x, y) queries the hit grid. A custom
  RenderContext must implement nativeScene, requestAnimationFrame(), and
  cancelAnimationFrame(). See
  Interaction, focus, and selection.
  (#​1479)
• core: OptimizedBuffer.create(), TextBuffer.create(),
  EditBuffer.create(), SyntaxStyle.create(), SyntaxStyle.fromStyles(),
  and SyntaxStyle.fromTheme() require an owner, and the ptr properties of
  buffers, views, and styles are removed. Pass renderer.nativeScene, or a
  ResourceContext when no renderer exists. Resources from different owners
  cannot be used together, and the resources that a renderer owns stop
  working when the renderer is destroyed. See
  How Core uses native.
  (#​1479)
• core: suspend() and resume() return a Promise<void>, and
  destroy() restores the terminal asynchronously. Await the transitions, and
  await renderer.closed before you reuse the streams. Both methods throw
  while another transition is pending, and when the terminal is not set up,
  for example on a test renderer or after destroy(). See
  Lifecycle and cleanup.
  (#​1479)
• core: The useThread option, renderer.useThread,
  renderer.rendererPtr, dumpBuffers(), dumpOutputBuffer(), and the
  OTUI_NO_NATIVE_RENDER environment variable are removed. Remove
  useThread. Instead of dumpBuffers(), use test frame capture or
  renderer.currentRenderBuffer.withBuffers(). Instead of
  dumpOutputBuffer(), give the renderer a custom stdout. Instead of
  OTUI_NO_NATIVE_RENDER, use createTestRenderer(). See
  Rendering diagnostics.
  (#​1479)
• core: The Clipboard class is removed. Use
  renderer.copyToClipboardOSC52() and renderer.clearClipboardOSC52(), or
  createClipboard() with createHostClipboard() and
  createRendererClipboardAdapter(renderer). See
  Clipboard.
  (#​1479)
• core: OpenTUI no longer installs a process-global
  requestAnimationFrame, cancelAnimationFrame, or window. Use
  renderer.requestAnimationFrame() and renderer.cancelAnimationFrame().
  See Animation and Timeline.
  (#​1479)
• core: After destroy(), renderable constructors, the timeline
  engine.attach(), and most renderer methods throw, for example
  setTerminalTitle(), copyToClipboardOSC52(), getStats(), and
  hitTest(). requestRender() and resize() do nothing. Check
  renderer.isDestroyed first. See
  Lifecycle and cleanup.
  (#​1479)
• core: When the output stream emits error, or closes or finishes before
  the renderer closes it, the renderer destroys itself and renderer.closed
  rejects. Handle the rejection of closed. See
  Lifecycle and cleanup.
  (#​1479)
• core: Drawing methods throw RangeError for fractional, NaN, or
  infinite coordinates and sizes. drawText() and box titles throw
  RangeError for text larger than 64 KiB of UTF-8. setCell(),
  setCellWithAlphaBlending(), drawChar(), and drawText() throw
  NativeError for attribute bits 8 to 31. In a paint hook, the frame fails
  instead. See Buffer API.
  (#​1479)
• core: EditBuffer.setText(), insertText(), insertChar(), and
  replaceText(), the same Textarea and Input methods, Textarea
  initialValue, Input.value, and both placeholder options throw
  NativeError for control characters other than tab, carriage return, and
  line feed. DEL and C1 control characters also throw. Remove these
  characters first. See Editing buffers and views.
  (#​1479)
• core: The minimum Bun version is 1.3.14 (was 1.3.0), the oldest version
  that CI tests. Bun 1.3.0 to 1.3.3 pass some FFI pointer arguments as wrong
  addresses, Bun 1.3.4 to 1.3.6 can crash after a Worker exits, and Bun 1.3.7
  can hang while it loads modules. See
  Runtime and platform support.
  (#​1479)
• core: The pointer-based RenderLib methods, such as createRenderer
  and bufferDrawText, and the handle types, such as RendererHandle and
  OptimizedBufferHandle, are removed. Use the public classes and the
  Context*Handle, SessionHandle, and SceneNodeHandle types. See
  How Core uses native.
  (#​1479)
• core: Standalone Yoga throws YogaError for invalid arguments, and
  Config.free() throws while nodes from that config remain. Measure and
  dirtied functions must return synchronously and must not change Yoga nodes.
  See Yoga API.
  (#​1479)
• ssh: session.write() can throw OutputPressureError or RangeError.
  cols and rows hold the requested size until the renderer attaches, and
  onClose runs at logical close, before the renderer finishes closing. See
  SSH.
  (#​1479)
• native: The legacy native exports, such as createRenderer and
  bufferDrawText, are removed. Use the ot_* functions in opentui.h. In
  Zig, the global grapheme and link pools are removed, so
  OptimizedBuffer.init() and CliRenderer.create() require a link_pool.
  GraphemePool.acquire() and LinkPool.acquire() replace alloc(). They
  return an ID that holds one reference, which decref() releases. See
  C and Zig.
  (#​1479)

Added

• core: renderer.requestAnimationFrame() and
  renderer.cancelAnimationFrame() schedule one-shot frame callbacks for one
  renderer. getTimelineEngine(renderer) and
  createTimeline(options, renderer) give each renderer its own timeline
  engine. See Animation and Timeline.
  (#​1479)
• core: renderer.closed resolves after destruction writes the remaining
  output and native teardown finishes. It rejects when the output fails or
  does not finish within one second. See
  Lifecycle and cleanup.
  (#​1479)
• core: renderer.requestResize(width, height) debounces size changes
  from a custom terminal and applies only the latest size. See
  Renderer.
  (#​1479)
• core: The nativeSceneWorkBudget option lets a frame yield to the event
  loop during preparation. Painting still runs in one native call. See
  Renderer.
  (#​1479)
• core: The environment option gives terminal environment values to one
  renderer, for example { TERM: pty.term } from an SSH client. These values
  replace the forwardEnvKeys values with the same names. In an automatically
  detected SSH login, only TERM and COLORTERM take effect unless you set
  remote: true. See
  Terminal capabilities.
  (#​1603)
• core: ResourceContext owns native resources without a renderer, and
  NativeError reports a failed native call with its operation and
  status. Image factories accept a ResourceContext in their owner
  option, such as renderer.nativeScene.resourceContext. See
  How Core uses native and
  NativeImage.
  (#​1479)
• core: Custom renderables get setMeasureProvider(),
  invalidateIntrinsicSize(), getLayout(), refreshHooks(), and
  defineNativeIntegration(). TextRenderable and CodeRenderable get
  drawToBuffer(), and OptimizedBuffer gets withBuffers() for scoped cell
  access. See Custom renderables.
  (#​1479)
• core: TestRendererSetup.dispose() and [Symbol.asyncDispose]()
  destroy the test renderer and wait for renderer.closed.
  ManualClock.pendingTimerCount counts the scheduled timeouts and active
  intervals. See Testing.
  (#​1479)
• native: opentui.h declares an experimental C ABI, and the opentui
  Zig module gains the same Context, scene, and Session model. A
  Context's object table starts at object_capacity slots and doubles when it
  is full, up to 4,194,304 slots or object_capacity, whichever is larger.
  Past that limit, object creation fails with OT_OBJECT_LIMIT. See
  Native rendering.
  (#​1479,
  #​1622)
• native: Terminology gets OSC 8 hyperlinks and OSC 777 notifications when
  its XTVERSION reply names it. See
  Terminal capabilities.
  (#​1566)
• ssh: The server accepts COLORTERM, TERM_PROGRAM, and
  TERM_PROGRAM_VERSION env requests that arrive before the shell request,
  with values of at most 256 bytes. It rejects other keys. The renderer gets
  these values with the client's PTY TERM, so capability detection sees the
  client's color depth and hyperlink support, and GNU Screen or tmux from the
  TERM prefix. A client with TERM=xterm-256color and no COLORTERM now
  gets 256-color output instead of truecolor. To keep truecolor, add
  SendEnv COLORTERM to the client's ssh configuration. See
  SSH.
  (#​1603)

Changed

• core: Native code lays out, culls, and paints the scene and fills the
  hit grid, so JavaScript no longer walks the tree on each frame. JavaScript
  work in a frame now grows with changes and hooks, not with the number of
  renderables. Some built-in renderables, such as Select and ScrollBox, still
  run JavaScript hooks. See
  Rendering pipeline.
  (#​1479)
• native: Text buffers build rope slices in one allocation. Setting and
  appending text use less time and memory. See
  Editing buffers and views.
  (#​1582)
• native: Buffers write cells that are not grapheme clusters on a faster
  path, and drawText() writes printable ASCII without copying it. See
  Buffer API.
  (#​1591)
• core: EmbeddedTerminalRenderable encodes meta as Alt, and only
  super encodes as Super. Core's key parser sets meta for Alt, so Alt+b
  now reaches a legacy child as ESC b, not b. On macOS, an Alt modifier
  reaches the child as Alt, because the host terminal already applied its
  Option setting. See Embedded terminal.
  (#​1594,
  1b25377b6,
  f0d7d1d3b,
  be14991e6)
• react: root.render() does nothing when the renderer is destroyed, for
  example after exitOnCtrlC. See React bindings.
  (#​1604)
• solid: render() does not mount when the renderer is destroyed, for
  example after exitOnCtrlC. See Solid bindings.
  (#​1604)

Fixed

• native: In an SSH or mosh login, automatically detected remote mode
  reads the color depth from TERM and COLORTERM. A 256-color terminal such
  as GNU screen 4.x gets 256-color output instead of truecolor that it cannot
  show. See Terminal capabilities.
  (#​1624)
• core: In split-footer mode, a write that continues a scrollback row no
  longer loses or overwrites a wide character at the end of the row. Tabs in
  captured stdout count from the start of the terminal row and stop at the
  last column. See Renderer.
  (#​1597,
  #​1617)
• native: In split-footer mode, a scrollback row that fills the terminal
  width keeps its last cell. Output no longer erases the footer when fewer
  than two rows remain above it, for example with the default footer in a
  terminal of 13 rows or fewer. See Renderer.
  (#​1581,
  #​1618)
• native: A highlight at the end of a line no longer colors text that an
  append, insert, or undo adds to that line later. setText() and
  replaceText() drop highlights on lines past the new line count, so
  getHighlightCount() and getLineHighlights() no longer report them. See
  Editing buffers and views.
  (#​1621,
  #​1601)
• native: Up and Down move the cursor to the start of a wide character or
  tab, not inside it. This applies to EditBuffer.moveCursorUp() and
  moveCursorDown(), EditorView.moveUpVisual() and moveDownVisual(), the
  Textarea arrow keys, and EditorView.setViewport() with moveCursor. See
  Textarea.
  (#​1596)
• native: Down does nothing in an empty Textarea while it shows a
  placeholder of more than one row. The next edit no longer fails with
  InvalidArgument. See Textarea.
  (#​1619)
• native: A width change in word-wrap mode releases the layout memory of a
  narrower wrap. Before this fix, a 94 KiB text wrapped at width 1 and then at
  width 80 kept about 46 MB. See Text.
  (#​1602)
• core: Key bindings use the Kitty base-layout key only when the typed key
  is one non-ASCII character. On Dvorak, Ctrl+J no longer matches
  exitOnCtrlC, and Ctrl+ㅊ still matches Ctrl+C. See
  Keyboard input.
  (#​1599)
• core: .tsx files and tsx Markdown fences use the tree-sitter TSX
  grammar through a separate typescriptreact parser. JSX closing tags no
  longer highlight as regular expressions. See
  Syntax highlighting with Tree-sitter.
  (#​1598)
• core: The tree-sitter worker changes #lua-match? predicates to
  #match? in bundled and registered queries when it can translate the
  pattern. TypeScript and Zig identifiers no longer all get the type and
  constant captures. See
  Syntax highlighting with Tree-sitter.
  (#​1620)
• core: EmbeddedTerminalRenderable sends F1 to F12 with or without
  modifiers, keys that the host terminal sends in SS3 form, and the keypad
  Begin key. It sends F13 to F25 to a child in Kitty keyboard mode. See
  Embedded terminal.
  (#​1616)
• native: The embedded terminal answers OSC 10, 11, and 12 and Kitty OSC
  21 color queries, and it applies an OSC 10 or OSC 11 that sets only one
  default color. OSC 110 resets the foreground to white, and OSC 111 resets the
  background to black. See
  Embedded terminal.
  (#​1615)
• native: The embedded terminal answers Primary, Secondary, and Tertiary
  Device Attributes queries. fish 4.1 and later no longer stall for about two
  seconds at startup. See
  Embedded terminal.
  (#​1595)

API changes and documentation: https://opentui.com/docs/releases/0.6.0

What's Changed

• Terminology supports hyperlinks (osc8) and notifications through osc777 by @​borisfaure in #​1566
• native: move the render tree into Zig by @​simonklee in #​1479
• skills: simplify hardening skill by @​simonklee in #​1576
• docs: clarify runtime API contracts by @​simonklee in #​1577
• skills: keep the opentui skill installable by @​simonklee in #​1579
• native: keep the last cell of a split scrollback row that fills the width by @​simonklee in #​1581
• rope: build slice trees in one allocation by @​simonklee in #​1582
• buffer: optimize plain ASCII writes by @​simonklee in #​1591
• native: reply to device attribute queries in the embedded terminal by @​simonklee in #​1595
• native: count a trailing wide character in a split scrollback row's end by @​simonklee in #​1597
• core: pin the ASCII boundary of the base-layout fallback rows by @​simonklee in #​1599
• native: bound word-wrap layout memory after a width change by @​simonklee in #​1602
• native: snap vertical cursor moves to the start of a wide character by @​simonklee in #​1596
• native: check highlight counts after shrinking setText by @​simonklee in #​1601
• ssh: send the client's terminal environment to the renderer by @​simonklee in #​1603
• solid, react: skip the mount when the renderer is destroyed by @​simonklee in #​1604
• core: highlight TSX with the tree-sitter TSX grammar by @​simonklee in #​1598
• rope: simplify marker cache storage by @​simonklee in #​1610
• core: encode embedded terminal function keys and SS3 keys by @​simonklee in #​1616
• native: set embedded terminal default colors by @​simonklee in #​1615
• core: cut captured stdout rows where the terminal row continues by @​simonklee in [#​1617](https://redirect.

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