diff --git a/CHANGELOG.md b/CHANGELOG.md
index d59b8bfa..3adff09a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ NOTE: [`epaint`](crates/epaint/CHANGELOG.md), [`eframe`](crates/eframe/CHANGELOG
 * Add `Plot::clamp_grid` to only show grid where there is data ([#2480](https://github.com/emilk/egui/pull/2480)).
 * Add `ScrollArea::drag_to_scroll` if you want to turn off that feature.
 * Add `Response::on_hover_and_drag_cursor`.
+* Add `Window::default_open` ([#2539](https://github.com/emilk/egui/pull/2539))
 
 ### Changed 🔧
 * Improved plot grid appearance ([#2412](https://github.com/emilk/egui/pull/2412)).
diff --git a/crates/egui/src/containers/window.rs b/crates/egui/src/containers/window.rs
index a16ad860..1b5ffc6f 100644
--- a/crates/egui/src/containers/window.rs
+++ b/crates/egui/src/containers/window.rs
@@ -10,7 +10,7 @@ use super::*;
 ///
 /// You can customize:
 /// * title
-/// * default, minimum, maximum and/or fixed size
+/// * default, minimum, maximum and/or fixed size, collapsed/expanded
 /// * if the window has a scroll area (off by default)
 /// * if the window can be collapsed (minimized) to just the title bar (yes, by default)
 /// * if there should be a close button (none by default)