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The format is based on Keep a Changelog.

The sections should follow the order Added, Changed, Deprecated, Removed, and Fixed.

Platform specific changed should be added to the end of the section and grouped by platform name. Common API additions should have , implemented at the end for platforms where the API was initially implemented. See the following example on how to add them:

### Added

- Add `Window::turbo()`, implemented on X11, Wayland, and Web.
- On X11, add `Window::some_rare_api`.
- On X11, add `Window::even_more_rare_api`.
- On Wayland, add `Window::common_api`.
- On Windows, add `Window::some_rare_api`.

When the change requires non-trivial amount of work for users to comply with it, the migration guide should be added below the entry, like:

- Deprecate `Window` creation outside of `EventLoop::run`

  This was done to simply migration in the future. Consider the
  following code:

  // Code snippet.

  To migrate it we should do X, Y, and then Z, for example:

  // Code snippet.

The migration guide could reference other migration examples in the current changelog entry.

Unreleased

Added

  • Add ActiveEventLoop::create_proxy().

  • On Web, implement Error for platform::web::CustomCursorError.

  • On Web, add ActiveEventLoopExtWeb::is_cursor_lock_raw() to determine if DeviceEvent::MouseMotion is returning raw data, not OS accelerated, when using CursorGrabMode::Locked.

  • On Web, implement MonitorHandle and VideoModeHandle.

    Without prompting the user for permission, only the current monitor is returned. But when prompting and being granted permission through ActiveEventLoop::request_detailed_monitor_permission(), access to all monitors and their information is available. This "detailed monitors" can be used in Window::set_fullscreen() as well.

  • On Android, add {Active,}EventLoopExtAndroid::android_app() to access the app used to create the loop.

  • Add ActiveEventLoop::system_theme(), returning the current system theme.

  • Add Touch::finger_id with a new type FingerId.

  • On Web and Windows, add FingerIdExt*::is_primary(), exposing a way to determine the primary finger in a multi-touch interaction.

  • Implement Clone, Copy, Debug, Deserialize, Eq, Hash, Ord, PartialEq, PartialOrd and Serialize on many types.

  • Add MonitorHandle::current_video_mode().

Changed

  • Change ActiveEventLoop to be a trait.

  • ApplicationHandler now uses dyn ActiveEventLoop.

  • On Web, let events wake up event loop immediately when using ControlFlow::Poll.

  • Bump MSRV from 1.70 to 1.73.

  • Changed ApplicationHandler::user_event to user_wake_up, removing the generic user event.

    Winit will now only indicate that wake up happened, you will have to pair this with an external mechanism like std::sync::mpsc::channel if you want to send specific data to be processed on the main thread.

  • Changed EventLoopProxy::send_event to EventLoopProxy::wake_up, it now only wakes up the loop.

  • On X11, implement smooth resizing through the sync extension API.

  • ApplicationHandler::create|destroy_surfaces() was split off from ApplicationHandler::resumed/suspended().

    ApplicationHandler::can_create_surfaces() should, for portability reasons to Android, be the only place to create render surfaces.

    ApplicationHandler::resumed/suspended() are now only emitted by iOS and Web and now signify actually resuming/suspending the application.

  • Rename platform::web::*ExtWebSys to *ExtWeb.

  • Change signature of EventLoop::run_app, EventLoopExtPumpEvents::pump_app_events and EventLoopExtRunOnDemand::run_app_on_demand to accept a impl ApplicationHandler directly, instead of requiring a &mut reference to it.

  • On Web, Window::canvas() now returns a reference.

  • On Web, CursorGrabMode::Locked now lets DeviceEvent::MouseMotion return raw data, not OS accelerated, if the browser supports it.

  • (Active)EventLoop::create_custom_cursor() now returns a Result<CustomCursor, ExternalError>.

  • Changed how ModifiersState is serialized by Serde.

  • VideoModeHandle::refresh_rate_millihertz() now returns an Option.

Removed

  • Remove Event.

  • Remove already deprecated APIs:

    • EventLoop::create_window()
    • EventLoop::run.
    • EventLoopBuilder::new()
    • EventLoopExtPumpEvents::pump_events.
    • EventLoopExtRunOnDemand::run_on_demand.
    • VideoMode
    • WindowAttributes::new()
    • Window::set_cursor_icon()

  • On iOS, remove platform::ios::EventLoopExtIOS and related platform::ios::Idiom type.

    This feature was incomplete, and the equivalent functionality can be trivially achieved outside of winit using objc2-ui-kit and calling UIDevice::currentDevice().userInterfaceIdiom().

  • On Web, remove unused platform::web::CustomCursorError::Animation.

  • Remove the rwh_04 and rwh_05 cargo feature and the corresponding raw-window-handle v0.4 and v0.5 support. v0.6 remains in place and is enabled by default.

  • Remove DeviceEvent::Added and DeviceEvent::Removed.

  • Remove DeviceEvent::Motion and WindowEvent::AxisMotion.

  • Remove Touch::id in favor of Touch::finger_id.

  • Remove MonitorHandle::size() and refresh_rate_millihertz() in favor of MonitorHandle::current_video_mode().

Fixed

  • On Web, pen events are now routed through to WindowEvent::Cursor*.
  • On macOS, fix panic when releasing not available monitor.
  • On MacOS, return the system theme in Window::theme() if no theme override is set.