AvalonDock

• #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)

Features and Fixes Added in Version 4.60.0

• #278 Rename pt-BR to pt (make Brazilian Portuguese default to Portuguese) (thanx to mpondo)
• #272 Fix Mismatched ResourceKey on VS2013 Theme (thanx to Reisen Usagi)
• #274 Support custom styles for LayoutGridResizerControl (thanx to thanx to mpondo)
• #276 Support minimizing floating windows independently of main window (thanx to thanx to mpondo)
• #284 Vs2013 theme improvement (thanx to thanx to oktrue)
• #288 Fix close from taskbar for floating window (thanx to thanx to mpondo)
• #291 Fix Issue #281 floating window host: UI automation name (thanx to thanx to rmadsen-ks)

• #262 Contextmenus on dpi-aware application have a wrong scaling (thanx to moby42)

• #259 Fixing problems with tests running with XUnit StaFact (thanx to Erik Ovegård)

• #266 Adding a key for AnchorablePaneTitle (thanx to Zachary Canann)

• #267 Optional show hidden LayoutAnchorable on hover (thanx to Cory Todd)

Pre-View Feature added in this Release

• #214 Migrate from netcoreapp3.0 to net5.0-windows (thanx to Magnus Lindhe)

Fixes added in Version 4.50.3

• #163 IsSelected vs IsActive behavior changed from 3.x to 4.1/4.2? (thanx to triman)

• #244 Right click on tab header closes tab unexpectedly (thanx to Olly Atkins)

• #208 Maximized floating windows sit under the task bar (thanx to Flynn1179)

• #255 Don't create FloatingWindows twice (thanx to Khaos66)

• #221 Default window style interfere with resizer window (thanx to Magnus Lindhe)

• #224 Reverted Fixed a bug that freezed when changing DocumentPane Orientation (thanx to sukamoni)
  See pull request for issues with this PR

• #240 NullReferenceException in LayoutDocumentControl.OnModelChanged (thanx to Khaos66)

• #225 Keyboard up/down in textbox in floating anchorable focusing DropDownControlArea (thanx to Muhahe LyonJack bdachev)

• #229 Ensure DocumentPaneGroup (fix crash when documentpane on layoutGroup) (thanx to sukamoni)

• #210 LayoutAnchorable with CanDockAsTabbedDocument="False" docks to LayoutDocumentPane when Pane is empty (thanx to Łukasz Holetzke)
• #195 DocumentClosed event issue (thanx to Skaptor)
• #205 Fix issue where the ActiveContent binding doesn't update two ways when removing a document. (thanx to PatrickHofman)

• #199 Add to LayoutDocument CanHide property returning false (thanx to bdachev)
• #138 Trying dock a floating window inside a document pane leads to its disappearing of window's content. (thanx to cuellius)
• #197 [Bug] Tabs start getting dragged around if visual tree load times are too high (thanx to X39)
• Bug fix for issue #194 App doesn't close after LayoutAnchorable AutoHide and docking it again (thanx to sphet)

• #182 CanClose property of new LayoutAnchorableItem is different from its LayoutAnchorable (thanx to skyneps)

• #184 All documents disappear if document stops close application in Caliburn.Micro (thanx to ryanvs)

• Thanx to bdachev:

  • #186 Raise PropertyChanged notification when LayoutContent.IsFloating changes (ensure change of the IsFloating property when the Documents state changes)
  • #187 Allow to serialize CanClose if set to true for LayoutAnchorable instance
  • #188 Handle CanClose and CanHide in XAML
  • #190 Added additional check in LayoutGridControl.UpdateRowColDefinitions to avoid exception.
  • #192 Default MenuItem style not changed by VS2013 Theme

• Removed the additional ToolTip and ContextMenu styles from the Generic.xaml in VS2013 more details here

• #189 Removal of DictionaryTheme breaks my application (thanx to hamohn)

• Localized labels in NavigatorWindow

• #170 Several Improvements (thanx to 刘晓青 LyonJack)

  • Improved VS 2013 Theme and ease of reusing controls
  • Fix Issue #85 Floating Window Title Flashing
  • Fix Issue #71 Hiding and showing anchorable in document's pane throws an exception
  • Fix Issue #135 ActiveContent not switching correctly for floating window
  • Fix Issue #165 ActiveContent not stable
  • Fix Issue #171 LayoutDocument leaks on close
  • Breaking Change
    Fix Issue #174 The SetWindowSizeWhenOpened Feature is broken
  • Fix Issue #177 ToolBar TabItem color error

• #59 InvalidOperationException when deserializing layout

• #136 Layout "locking" method for Anchorables (tool windows) Part II via Style of LayoutAnchorableItem

• #136 Layout "locking" method for Anchorables (tool windows) Part III Added CanDock for LayoutAnchorable and LayoutDocument
  commit 6b611fa7fdce4f6dcfed1cf00c3b9193000ffe16

• #169 - Autohide LayoutAnchorable causes CPU load on idle

• #136 Layout "locking" method for Anchorables (tool windows)

• # 159 Docking manager in TabControl can cause InvalidOperationException

• # 151 Model.Root.Manager may be null in LayoutDocumentTabItem Thanx to scdmitryvodich