v0.9.0

Breaking changes

• Window::blur and Window::disable_focus now take &mut App — pending
  keystrokes and keybinding-indicator observers are cleared when a window is
  blurred. Call window.blur(cx) / window.disable_focus(cx) instead of the
  previous no-argument forms.

• GpuResourceBudget requires instance_buffer_max_size — struct literals that listed only
  atlas and initial instance-buffer sizes will not compile. Use GpuResourceBudget::new(atlas, initial) or ..GpuResourceBudget::default() (256 MiB ceiling, the previous implicit Zed cap).
  AppProfile::{Desktop,Utility,Minimal} already fill profile-specific maxima.

• set_keep_alive_without_windows replaced by QuitMode — the boolean keep-alive flag is
  gone; use App::set_quit_mode / Application::with_quit_mode with QuitMode::Explicit
  (previous true) or QuitMode::LastWindowClosed (previous false) instead. The quit
  decision is now owned by the core application rather than each platform backend; platforms
  only receive Platform::set_quit_mode for platform-visible side effects (macOS
  ActivationPolicy). Behavior change on macOS: QuitMode::Default now keeps the app alive
  after the last window closes, following the macOS convention — previously the default quit
  on last window close on every platform. Other platforms are unchanged (Default still
  quits when the last window closes).

• Removed pass-through dependency features — implementation-dependency features that enabled
  no additional code are no longer public: backtrace, rand, bitflags, and scap on
  adabraka-gpui-core, plus the Linux backend dependency names (as-raw-xcb-connection,
  ashpd, bytemuck,
  calloop-wayland-source, cosmic-text, filedescriptor, open, wayland-backend,
  wayland-client, wayland-cursor, wayland-protocols, wayland-protocols-plasma,
  wayland-protocols-wlr, wayland-scanner, x11-clipboard, x11rb, xim, and
  xkbcommon) across adabraka-gpui, adabraka-gpui-platform, and adabraka-gpui-linux.
  Enable the corresponding semantic features instead: leak-detection, test-support,
  wayland, x11, screen-capture, or perf-enabled. The wgpu feature remains a no-op
  marker on adabraka-gpui and adabraka-gpui-platform for headless compile checks; the old
  adabraka-gpui-linux/wgpu feature is removed, and the Linux WGPU backend is enabled by the
  wayland/x11 aggregates.

  Removed feature	Replacement
  backtrace	leak-detection
  scap	screen-capture
  Linux Wayland dependency names	wayland
  Linux X11 dependency names	x11
  rand on adabraka-gpui-core	test-support

Improvements

• Spring animations — SpringConfig, SpringAnimation, and AnimationExt::with_spring
  simulate interruptible physical motion. Overlay, HUD, and daemon surfaces can retarget a
  spring without restarting it. Duration-based easing can overshoot via sampled_easing.

• Animation max FPS — Animation::with_max_fps schedules timer-driven redraws instead of
  requesting a frame on every vsync, useful for looping HUD/daemon decorations.

• Configurable inactive-window FPS — WindowOptions::inactive_frame_interval controls the
  minimum interval between animation frames while a window is unfocused (None disables the
  throttle). The default remains ~30 FPS.

• LineLayout::{split_at, paint, paint_background} — callers can hold Arc<LineLayout>
  and their own decoration runs without allocating a large ShapedLine.

• container_query element — container_query(|size, window, cx| ...) builds a subtree from
  the size the element was assigned during layout. It fills its parent by default and is sized
  only by its style and the space the parent offers, so the contents cannot influence it.

• Sticky-axis scrolling — restrict_scroll_to_axis now locks a precise trackpad gesture to the
  axis it starts on and unlocks only when the opposite axis is strong enough. Line-based wheel
  remapping and allow_concurrent_scroll keep their previous semantics.

• App::set_window_appearance — force light or dark independently of the OS setting; None
  clears the override and follows the system again. macOS sets NSApplication.appearance so the
  native chrome matches; other platforms store the override and report it from
  App::window_appearance.

• Wrapping keeps closing punctuation — UAX #14 LB13 closing marks (), ], }, quotes, »,
  …) count as word characters, so a wrapped line can no longer start with one. URL-glue
  characters (/, ?, &, =) are unchanged.

• Windows Restart Manager — WM_QUERYENDSESSION / WM_ENDSESSION shut the app down
  cleanly so installers can replace binaries. Platform::on_quit now reports whether
  shutdown ran synchronously.

• Renderer GPU budgets moved off WindowParams — atlas_initial_size and
  instance_buffer_initial_size are renderer memory policy, not per-window parameters. Platforms
  now receive them through Platform::configure_gpu_resources (driven by
  Application::with_resource_profile) and supply them to renderers at window creation, so
  WindowParams no longer carries renderer resource policy.

• Batched wgpu instance uploads — the Linux wgpu renderer uploads a frame's instances once at
  frame start instead of per batch, sizing and growing the buffer from GpuResourceBudget
  watermarks so Minimal and Utility are not pinned to the 256 MiB desktop ceiling. A frame
  whose instances exceed the profile or device cap now fails instead of presenting an unrecorded
  swapchain image, and GpuResourceBudget::new(atlas, initial) keeps a two-field construction
  path for callers that do not want to pick a maximum.

• Demand-driven Wayland frame loop — the render loop parks when idle rather than committing
  empty heartbeat frames, and wakes through schedule_frame when a window still needs work.
  Hidden windows no longer attach buffers or schedule frames, so a refresh cannot remap a hidden
  XDG or layer-shell surface, and the Linux event loop is skipped entirely when the app has
  already quit instead of blocking forever in dispatch.

• Linux font cache prewarming — TextSystem::prewarm_fonts warms the cosmic-text font-match
  cache for the requested fonts so shaping does not pay that cost on the hot path.

• Feature contract checks — scripts/verify-features.sh compiles the public feature
  combinations used by CI and the docs runbooks, and pins every published crate's public
  feature list against a whitelist so accidental additions or removals fail in CI.

• Async benchmark feature — adabraka-gpui-core exposes the bench feature used to compile
  the production-like async task completion benchmark without enabling it for normal builds.

• Taffy 0.13 — the layout engine pin moves from 0.12.2 to 0.13.0. Public Styled
  builder signatures are unchanged (flex_grow / flex_shrink remain parameterless helpers
  that set 1.0). Post-bump list/text cache fixes and auto-sized window-root fill were already
  present; this release adds the content-sized grid-column regression coverage that lands with
  the Zed 0.13 bump.

Utility crates 0.6.0 (2026-08-30)

Breaking changes

• adabraka_util feature cleanup — the dependency-name features git2, rand, and
  util_macros are removed. Use the semantic test-support feature when the test helpers are
  required.
• adabraka_util_macros feature cleanup — the dependency-name feature perf is removed. Use
  perf-enabled instead.