• #436 Changed how the next active document is picked on document close. (thanx to FredrikS fredriks123)
• #438 NullCheck for DragPoint (thanx to Ben bbuerger)

Fixes and Features Added in Version 4.72.0

• #423 issue #422 DockingManager.LayoutItemTemplateSelector is applied twice because... (thanx to Mona04)

• #425 Fix: Potential NRE on app close (thanx to Khaos66)

• #427 Fix floating windows still created twice (thanx to Khaos66)

• Add DockingManager.ShowNavigator (thanx to Calum Robinson)

• #431 Fix unwanted group orientation change when using mixed orientation (thanx to KuroiRoy)

Fixes Added in Version 4.71.2

• #416 Fix Issue #226: Restore floating windows to maximized state (thanx to Michael Möller)

• #417 Close and active selected item when NavigatorWindow is inactive (thanx to EQOH Noisrev)

• #418 Add active content handler to LayoutAnchorableFloatingWindow and improve the active content handlers (thanx to EQOH Noisrev)

• #413 Fix the binding error in AnchorGroupTemplate (thanx to EQOH Noisrev)

• #414 When apply new template, add back collection change event handler (thanx to EQOH Noisrev)

• #415 Improved and fix floating window activation and activation pane (thanx to EQOH Noisrev)

• #399 add open/close LayoutFlayoutingWindowsControl events (thanx to Denis Smirnov)

• #400 set ResizeOverlay's owner always null (thanx to Denis Smirnov)

• #401 remove unused variable from DocumentPaneTabPanel (thanx to Denis Smirnov)

• #403 Add XmlSerializer cache to fix memory leaks. (thanx to Pavel Kindruk)

• #404 Fix deserialized layout document close. (thanx to Pavel Kindruk)

• #409 Restore previously activated document after closing active document (thanx to L45eMy)

• #410 Improved activation of floating Windows (thanx to EQOH Noisrev)

• #411 Add anchorable hide and close notifications to DockingManager (thanx to John Stewien)

• #412 Fix a issue where the dragged window still appeared above the overlay window (thanx to EQOH Noisrev)

Fixes Added in Version 4.70.3

• #394 Fix the get owner DockingManagerWindow and Update drag and drop (thanx to EQOH Noisrev)

• #393 Add Null check for GetWindowChrome (thanx to EQOH Noisrev)

• #376 Prevents a known bug in WPF (thanx to Ben Buerger)

Fixes Added in Version 4.70.2

• #338 Fixes #309 Anchorable Header not visible in generic theme (thanx to Darren Gosbell)
• #346 fix crash if some assembly not allow GetTypes() (thanx to Trivalik)
• #347 #345 fix refresh when moving floating windows (thanx to Norberto Magni)
• #357 LayoutAutoHideWindowControl: UI automation name (thanx to Ben)
• #363 Fixes #362 DockingManager with a Viewbox ancestor does not properly render auto-hidden LayoutAnchorables (thanx to Tim Cooke)
• #367 Fix for #306 StartDraggingFloatingWindow (thanx to Muhahe)

Fixes Added in Version 4.70.1

• #336 Keep ActiveContent when switching RootPanel (thanx to Khaos66)
• #334 fix #333 x64-issue: x86-specific functions are used when project is compiled for x64-architecture (thanx to Jan cuellius)

Features and Fixes Added in Version 4.70.0

• #331 FixDockAsDocument fix bug with CanExecute and Execute for DockAsDocument (thanx to askgthb)
• #328 NullCheck for currentActiveContent (thanx to Ben bbuerger)
• #327 Add default width and height of LayoutAnchorable (thanx to Anders Chen)
• #326 A more complete fix to per-monitor DPI issues (thanx to Robin rwg0)
• #324 Navigator Window Accessibility fixes (thanx to Siegfried Pammer)

• #314 Fix NavigatorWindow not working if there is only one document (thanx to Siegfried Pammer)
• #308 Code Clean-Up Serialization (thanx to RadvileSaveraiteFemtika)
• #317 Aded LayoutItem null check when processing mouseMiddleClickButton (thanx to JuanCar Orozco)