In Settings → Animation & performance, choose Roll for widgets with “Expand Automatically on Hover” enabled. Widgets set to “Show on Hover Only” fade in and out by default. You can turn off the fade.
When a widget expands on hover, click the pin in its title bar to keep it expanded after you move the pointer away.
Dock settings now include “Blur desktop behind Dock”, which is off by default. When the floating Dock reserves system space and a window is maximized on the same display, the desktop behind the Dock blurs slightly.
Improvements
Refined how windows scale and move when minimizing or restoring, and removed the extra rounding added during the transition. The Dock’s Attraction effect starts sooner when restoring a window and plays more smoothly when minimizing it.
For a collapsed widget set to show only on hover with auto-expand off, move the pointer over the area it originally occupied to reveal its narrow strip. In a widget stack, the current widget stays visible until the pointer leaves both the widget and the stack switcher.
Bug fixes
Fixed the expanded status bar tray closing too early when you right-clicked the Steam icon. You can now use the Steam menu and click outside the panel to close the tray.