Summary of Changes

Changes from version 0.5.0 to 0.5.1

Ported B to the following platforms / environments / libraries / tool sets:

1. Mac OS X 10.4 (aka Tiger)
2. Xcode 2.1
3. CodeWarrior 10.0
4. Boost 1.33.0

Changes from version 0.4.1 to 0.5.0

Completely revamped Apple Event Object Model initialization logic

1. B needed to know which Apple Events an application supported, in order to install AE handlers for them.
2. B needed to know which AE classes an application supported, in order to install AEOM callbacks for them. It also needed to know how the classes were related by inheritance.
   
3. B needed to know which classes supported which Apple Events.

1. Add an .sdef file to the project.
2. Copy the .sdef file into the application bundle.
3. Feed the .sdef file to the sdp command-line tool, which in turn generates a .r file containing an 'AETE' resource. This resource needs to be merged into your application's resource file.  This is because various parts of the operating system still expect an 'AETE' resource and can't read an .sdef file directly.
4. Add an entry in your Info.plist file that points to the .sdef file in the application bundle.
   

Window::CreateFromNib return type change

Now Using Boost 1.32.0

1. Change the symbolic link in /usr/local to point to the new installation.  Assuming the new installation is at /usr/local/boost_1_32_0, follow these steps:
1. cd /usr/local
2. sudo rm boost    # remove old symlink
3. sudo ln -s boost_1_32_0 boost
2. In CodeWarrior, change the global "boost" source tree to point to the new installation.
3. In Xcode, change the global "boost" source tree to point to the new installation.
4. Trash all build folders (Xcode "build" folder, CW "Data" folder, etc) and rebuild from scratch.

Now using Xcode 1.5

MoreIsBetter library changed

Miscellaneous Changes

• The "parent" property of the Apple Event class "document window" has been renamed to "document".  Previously, if you had an Applescript that accessed this property, you would say
  "parent of document window foo".  Now you say "document of document window foo".
  
• AEObject::GetProperty() and AEObject::SetProperty() have been replaced by  AEObject::ReadProperty() and AEObject::ReadProperty(), respectively.  The latter take AEReader and AEWriter objects as arguments instead of an AEDesc.
  
• The singletons managed by ErrorHandler and ExceptionStreamer are now wrapped inside a boost::intrusive_ptr instead of boost::shared_ptr.  This will affect clients  that directly access these singletons.
  
• Changed the internals of Cursor to use boost::intrusive_ptr instead of boost::shared_ptr.  This shouldn't have any impact on clients.
• Ditto for EventHandler and UndoAction.
  
• Added AutoMacResourceHandle to BMemoryUtilities.h.
  
• Removed BCOM.cpp/.h, which wasn't used and was marked as "not ready for prime time".
• EventHandler::Add() now has an overload that takes a boost::function.  This probably won't affect clients.  This means greater flexibility for clients, because of boost::function's nice integration with boost::bind.
• Internally, EventHandler's functor map now uses boost::intrusive_ptr instead of boost::shared_ptr.  The former is a lot less resource-hungry than the latter.  This change won't affect clients.
  
• Don't forget to re-run the install.command shell script (under b/prog).  This will set up some symlinks under /usr/local to point to the B installation.

Changes from version 0.4.0 to 0.4.1

Attention Xcode Users

Xcode Configuration Changes

Enhancements to Undo Classes

Changes from version 0.3.1 to 0.4.0

Now Using Boost 1.31.0

1. Change the symbolic link in /usr/local to point to the new installation.  Assuming the new installation is at /usr/local/boost_1_31_0, follow these steps:
1. cd /usr/local
2. sudo rm boost    # remove old symlink
3. sudo ln -s boost_1_31_0 boost
2. In CodeWarrior, change the global "boost" source tree to point to the new installation.
3. Trash all build folders (Xcode "build" folder, CW "Data" folder, etc) and rebuild from scratch.
   

Completely Revamped Support for Sheets

• Documents/BDocumentSheets.h
• Documents/BDocumentSheets.tpl.h
• Sheets/BAlertSheets.cpp
• Sheets/BAlertSheets.h
• Sheets/BNavSheet.h
• Sheets/BSheetParentState.cpp
• Sheets/BSheetParentState.h

Changes to Dialog

Changes to NavDialog and its derivatives

• The Run() function is gone.  Actually, it's gone from NavDialog and has now become a template member function in the derived classes such as AskSaveChangesDialog.  Attempting to call the old Run() function will almost certainly lead to compilation errors.  There is no one function that does the same thing, but NavDialog::Enter() (the non-static variant) is good as a first approximation.  The overview article may help you decide the best way to migrate your code;  the Doxygen documentation can also be of help here.
• The Display() function is also gone.  Again, the overview article will be of help here.
  

Changes to Alert

• The files BAlerts.cpp/.h were renamed to BAlert.cpp/.h, since there is now one Alert class instead of many.
• SetError() and SetExplanation() have been renamed to SetMessageText() and SetInformativeText(), respectively.  The new names better reflect their purpose, and match the nomenclature in the Aqua HIG.
• Likewise SetConfirmButton() and SetInfirmButton() have been renamed to SetDefaultButton() and SetCancelButton().

Miscellaneous Changes

• Since SheetParentState is gone, a new mechanism was required to allow a sheet's parent's state to be saved when the sheet is displayed and restored when it is hidden.  This is now accomplished by sending custom Carbon Events to the parent window.  That way, if the parent needs to save/restore stuff, it can do so itself.  Window includes built-in handlers for these events that save & restore the state of the close button.  This isn't actually required on Panther but it is on Jaguar.
  
• When running on Panther or later, SplitView will draw the splitter image via HIThemeDrawPaneSplitter(), if no custom image has been specified.
  
• Changed the global constants in BEventCustomParams.h so they all begin with "B".  This may affect clients, especially if they have nibs containing command IDs defined in this file.  For example, the PLister sample was affected by this because it has an "Open Recent" item in its menus.
  
• Changed the definition of some of B's custom Carbon Events to use lower-level parameter types (WindowRef instead of B::Window*, EventTargetRef instead of B::AbstractDocument*).  Clients of B are unlikely to be affected by this change.
  
• The Dialogs test window in the Tarabiscoter sample has been revamped to also show off alerts.
• Added a Navigation Services test window to the Tarabiscoter sample; it demonstrates the use of the various Nav dialogs with all supported window modalities.
  
• Added WindowUtils::WindowIterator, an iterator class similar to ViewUtils::SubviewIterator, but for iterating over windows instead.  The iterator's constructor takes a WindowClass and a return-only-visible-windows flag, which helps when iterating over a subset of the windows.
• Added WindowUtils::begin() and WindowUtils::end() which return iterators pointing to the beginning and end of a sequence of WindowRefs, respectively.
• Added WindowUtils::IsMetal(), WindowUtils::GetClass(), WindowUtils::GetAttributes() and WindowUtils::GetModality().
• Removed Window::GetModality(), since it's really too low-level for this class. WindowUtils::GetModality() can be used instead.
• InteractWithUserDialog::Run() doesn't return a bool anymore.  If a timeout occurs, an InteractionTimeoutException is thrown instead.
  
• TaggedTypeTrait<typeQDPoint> is now mapped to Point instead of ::Point (aka Quickdraw point);  likewise TaggedTypeTrait<typeQDRectangle> is mapped to Rect.
• The throwing variants of the AEReader::ReadXXX() member functions now return a reference to their output argument as the function result.  This makes it easier to chain function calls.
  

Changes from version 0.3.0 to 0.3.1

Changes to View Create() functions.

1. The view's ID.  If non-zero, the view is given an HIViewID with the given value and the main bundle's creator as the signature.  If zero is passed in, the view doesn't get a view ID.
2. The view's superview.  This is more convenient than a WindowRef, because it allows the caller to set up the view hierarchy in fewer steps.  If NULL is passed in, the view is created "standalone".  To place the new view at the top level of a window, pass in the return value of Window::GetContentView() or WindowUtils::GetContentView().
3. A pointer to the view's frame.  If non-NULL, it specifies the location of the view in its superview's coordinates.  If NULL is passed in, the view doesn't get any specific size or location.  This is actually convenient, especially when you are adding the new view to a superview that automatically places and resizes its child views (eg ScrollView).
4. A pointer to a Nib.  If non-NULL, it's assumed that the new view can load auxiliary resources from it.
5. A pointer to a ViewFactory.  If non-NULL, it's used to instantiate the View object;  else, the default view factory is used instead.

Refactoring of Exception and Error Handling Classes

• Class Exception is gone.  B's exception classes now form small trees rooted in std::exception.
• There is now an IOException class deriving from std::exception and the file-I/O related exceptions derive from it:  EOFException, FileNotFoundException, OpenException, ReadException, WriteException.  These are meant to be more generic and higher-level than throwing OSStatusException.
• OSStatusException is now an abstract base class.  There are two principal derived classes: RuntimeOSStatusException which fills the role that OSStatusException used to have, and ConstantOSStatusException<>, which is class template containing a constant OSStatus value.
• The classes derived from Exception that need to mantain an internal string have been refactored to use a common class, called ExceptionStringHolder.
  
• A more sophisticated mechanism for determined how to serialise an exception object has been introduced.  It uses a "traits" class called (unsurprisingly) ExceptionTraits.
  
• A portion of the functionality that used to be in ErrorHandler has been spun off to a new class, ExceptionStreamer. This class takes care of serialising and deserialising exception objects, and takes full advantage of ExceptionTraits.
• ErrorHandler is now a real object instead of a collection of static functions.  The functions that display alerts are virtual, so it's possible to change that behaviour, eg to log the information to a file or system log instead.  Furthermore, ErrorHandler is now a per-thread singleton.  That is, every distinct thread gets a new instance of ErrorHandler.  It's possible to change the instance of ErrorHandler for the current thread.
  

B now uses Boost.Threads

• AEObjectSupport uses a helper object (ExInfo) to put exception information into Apple Event replies.  This object is in thread-specific storage and is now managed by boost::thread_specific_ptr<>.
• ErrorHandler is a per-thread singleton managed by boost::thread_specific_ptr<>.  Its truly global state is initialised via boost::call_once, so even its initialisation sequence is thread-safe.
• ExceptionStreamer's singleton object is also initialised via boost::call_once.

Bug uncovered in gdb

Miscellaneous Changes

• Tidied up some code having to do with the interrelationships between View, CustomView, and HybridView.
• Fixed bugs in the view layout code.  Replaced MoveControl()/SizeControl() with HIViewSetFrame() in non-compositing windows.
  
• Added specialisations of Event for kEventWindowUpdate and kEventWindowDrawContent.
• Added WindowRef constructors to the specialisations of Event kEventWindowUpdate,kEventWindowDrawContent, kEventWindowActivated, kEventWindowDeactivated, kEventWindowShowing, kEventWindowHiding, kEventWindowShown and kEventWindowHidden.
  
• Member functions of AEWriter and AEEvent<XXX, YYY> that create & send AppleEvents have been modified to take an additional template parameter:  TARGET.  This parameter is an object that specifies which process will receive the event.  A number of predefined target classes have been added:  AESelfTarget, AEPsnTarget, AEPidTarget, AEUrlTarget.  Developers using AEObject to send events won't be affected, since that class uses AESelfTarget behind the scenes.
  
• String and Mutable string will now throw CharacterEncodingException in most cases if an encoding error occurs (eg, when asked to return a C string in an encoding to which the string can't be converted).  Previously, this was mis-diagnosed as an out-of-memory condition.
  
• Added a second templated CustomView::Create() function.  The new one takes an EventRef instead of a Collection, and instantiates the view via HIObjectCreate() instead of CreateCustomControl().
• HybridView now has templated Create() helper functions.
• Added DataBrowser::Create().
• Added Window::GetContentView().
• Added a new helper class, ViewUtils::ImageContent, which allows implementers of custom views to add support for image content (icons, PICTs, CGImages, etc) without too much fuss.  This new class allows SplitView to support drawing an image in the middle of the splitter area.
  
• All unique strings (bundle identifiers, HIObject class IDs, etc.) have been changed from "enrg.paullallonde.*" to "ca.paullalonde.*".
• Added relational operators for HIViewID and ControlKind to ViewUtils.
  
• Renamed View::GetControlKind() and CustomView::GetControlKind() to GetKind().  In both cases the kind is now returned as the function result instead of an output argument.
• Added View::GetViewID(), View::GetID(), View::SetViewID(), View::SetID(), and CustomView::GetViewID() to get & set a view's HIViewID.  The "ID" variants only deal with the HIViewID::id field, where the "ViewID" variants handle the whole structure.
• Fixed a performance problem where one of the overloads of ToolboxObjectProperty<>::Get() was using exceptions as a return mechanism.  Because this function is called quite often, it was generating a lot of spurious throws.  Note that in the unlikely case where a developer was specialising the ToolboxObjectPropertyTypeTrait<> class template, they will need to add a non-throwing version of the Get() function.
  

Changes from version 0.2.3 to 0.3.0

ObservationCenter Replaced by Boost.Signals

Dialogs

Drawers

Cursors

New View & Window Utilities

• Determining if a window is composited.
• Retrieving a window's content view.
• Retrieving the bounds of a window's content view.
• Retrieving the global bounds, origin & size of a window's structure region.
• Retrieving the global bounds, origin & size of a window's content region.

• Coordinate conversions.  One can convert between two views, or between a view and local, window or global coordinates.  The conversions operate on Point, or on any type that implements operator += (B::Point) (that includes Rect and MutableShape).
• Retrieving the content view of a view's owning window.
  
• Retrieving the bounds of the content view of a view's owning window.
• Finding a subview of a given view.
• Two iterator classes for iterating over the subviews of a view.  One class iterates forward, the other backward.  Both classes fall into the "forward iterator" category of STL iterators.
• Performs view layout.
  

Revamped View Layout

• In composited windows on Panther, the layout is performed by the HIView system.
• On Jaguar and in non-composited windows on Panther, the layout is performed by B.  Only a subset of the layout facility is currently available, but it's more than adequate for simple needs.

• If your application needs to run on Jaguar, specify it programatically.  This is because the Interface Builder runtime only supports layout information on Panther.  You will be limited to a subset of the layout facility as noted above.
• If your application needs sophisticated view layout (ie anything beyond what Interface Builder supports), specify it programatically.  You may be limited to a subset of the layout facility as noted above, depending on the type of window and OS version.
• If your application runs only on Panther or later, and it needs only simple layout support, specify it with Interface Builder. You can enjoy the benefits of not having to write any code!

    HILayoutInfo layout;
    B::View*     myView;
    
    // This gives you complete control over the layout
    myView->SetLayout(layout);
    // This is shorthand for binding one side of the view to its parent.
    myView->SetRightBinding(kHILayoutBindRight);

Miscellaneous Changes

• Added Window::GetModality(), which returns a window's WindowModality.
• Added virtual functions to Window that allow derived classes to know when a window is being shown or hidden:  HandleShowing(), HandleHiding(), HandleShown(), HandleHidden().
  
• Added a new sample application, Tarabiscoter.
• Added support for more Boost exceptions to ErrorHandler's exception serialisation mechanism.
• Reorganised the precompiled headers in the sample projects.  They now #include a common header, "B.pch++", which contains common stuff.
  
• Window's constructor arguments have been swapped.  Now the WindowRef is first, and the AEObject* second.  This makes the argument sequence more sensical when one adds extra arguments (such as when calling Window::CreateFromNibWithState).
• Window::CreateFromNib now takes only one template parameter, the window class.  A second function, Window::CreateFromNibWithState, has been added which can be used to pass state information to the window object's constructor.
• Added missing specialisations of Event for Carbon Events of class kEventClassMouse.
• Added overview article for Carbon Events.
• Revamped the "Using Windows" overview article.  It now has handy links to Doxygen-generated documentation.
• Removed the overloads of EventBase::Send() for classes Window, View and Menu.  They were superfluous and introduced needless coupling between the Carbon Event code and those classes.
• Added some member functions to Window, View, Menu, EventTarget, and Toolbar to give clients more consistent access to their underlying (ie HIToolbox) data structures:
• Each class now has a conversion operator to the underlying OS data structure (eg WindowRef).
• Each has a member function which also returns the OS data structure. For example Menu has a GetMenu() function returning its MenuRef.
• Each has a GetObjectRef() function which returns the OS data structure typecast as an HIObjectRef.
• Each has a GetEventTarget() function which returns the OS data structure's EventTargetRef.
  
• View now has member functions for returning iterators over its subviews.
• Added template FindSubview() member functions to View.  They are similar to the FindView() functions in Window, except they can start finding at an arbitrary location in the view tree.
  
• Added support in SplitView for orientation and content tags.
• Fixed bugs in HelpButton and SplitView where we weren't expecting a null Collection.
• Added operator WindowRef () to Window.
• EventBase::Send() now takes an optional argument that specifies sending options (eg kEventTargetDontPropagate).  The implementation now uses SendEventToEventTargetWithOptions().
  
• Added a Bundle member variable to Nib, and a function to access it.  This is handy for Awaken() functions that want to load resource from the same bundle as the one they themselves were loaded from.
• Removed the IBNibRef constructor from Nib.  It was only used by the old Loaded() implementation.
  
• Propagation of the Awaken() (née Loaded()) functions has been redone.  The previous implementation was prone to conflicts between View and CustomView.
  
• The "loaded" functions (View::Loaded(), CustomView::Loaded(), Window::Loaded()) have been renamed to Awaken(), which I think is more poetic.  Its Nib argument is now optional, in order to allow the function to be called when a View/CustomView/Window is created programatically.
• Well, I've finally determined that B's use of C++ is a bit too advanced for lame old ZeroLink.  The option has been turned off in all of the Xcode projects.
• Changed AEObject::PrintObject and AEEvent<kCoreEventClass, kAEPrint> to support the extended print options in Panther.
  

Changes from version 0.2.2 to 0.2.3

Finding Views Made Easier

StaticTextView* myView;

myView = myWindow->FindView<StaticTextView>(kMyViewID);

Miscellaneous Changes

• In order to make the sample projects independent of the exact location of the B installation, the way that the projects refer to the B sources has changed.  The exact method is depends on whether you use CodeWarrior or Xcode/PB.  For CW you need to define a new global source tree;  for Xcode/PB, you need to create symlinks under /usr/local.  Refer to the ReadMe for more information.
  
• Changed the layout of the html documentation files on disk.
• Documented ViewFactory.
• Doxygen docs.
• Member functions of AEObject that contained "Model" were renamed to use "Object" instead.  For example, CloneModel() became CloneObject().  The term "Model" was a holdover from an earlier nomenclature.
  
• Made it easier to build the CodeWarrior projects on Jaguar.
• Fixed lingering problems in building Project Builder projects on Jaguar.
  
• Upgraded the sample projects to Xcode 1.1.

Changes from version 0.2.1 to 0.2.2

New Build Macros

• B_BUILDING_ON_10_3_OR_LATER.  This is non-zero if the current project is being built on Panther.  Note that the default value is 1.  If you are not building on Panther, you should set this to zero in your prefix file.
• B_BUILDING_CAN_USE_10_3_APIS.  This is non-zero if you are allowed to access declarations (including function declarations) that were introduced in Panther.  It's non-zero if B_BUILDING_ON_10_3_OR_LATER is non-zero and MAC_OS_X_VERSION_MAX_ALLOWED is greater than or equal to MAC_OS_X_VERSION_10_3.  Note that even if this macro is non-zero, you may still need to check for API availability at runtime.
• B_BUILDING_CAN_USE_10_3_APIS_ONLY.  This is non-zero if you are allowed to access declarations (including function declarations) that were introduced in Panther.  It's non-zero if B_BUILDING_ON_10_3_OR_LATER is non-zero and MAC_OS_X_VERSION_MIN_REQUIRED is greater than or equal to MAC_OS_X_VERSION_10_3.  Note that unlike B_BUILDING_CAN_USE_10_3_APIS, this doesn't require any runtime checks for API availability, because in effect in sets the app's minimum required system to Panther.

Miscellaneous Changes

• Several changes to the PLister sample:
• The undo support had suffered quite a bit of bitrot over time.
• The tree of ModelItems is now stored using boost::shared_ptr, which helps with lifetime management, especially when items are being deleted.
• Added the "duplicate" event to the terminology resource (aka 'aete').
• Made the Duplicate menu command work more like in the Finder (the duplicates of all selected items end up in the same container as their original item, instead of having all of the duplicates end up in the same container).
• Added supported for the optional "with properties" parameter to the "duplicate" Apple Event.
• AEObject::CountElements() now handles the case where the requested element type is cObject.  It iterates over all of the container's declared element types, and counts each in turn.
  
• Added AEClassInfo::AddElement(), which allows derivatives of AEObject to declare their element class IDs.
• References to typeCString and typePString have been removed, since those descriptor types are now deprecated by Apple.
• Changed the "exception-thrown" alert so that displays inException.what().
• Added ErrnoException, which is an exception class that represents a UNIX errno value.  Matching exception-throwing macros have been added to BErrorHandler.h (ThrowIfErrno(errn), ThrowErrnoIf(c)).
  
• The throw and assert handlers in ErrorHandler are now kept in thread-specific storage.
• Added concept checks to the Apple Event and Carbon Event classes.
• Added Window::ClearProxy().
• Added a new view flag to CustomView:  kViewClickActivation.  When it's turned on, the view gets called for the kEventClassControl / kEventControlGetClickActivation event.
  
• Added Bundle::FindDocumentTypeForMIMEType() and Bundle::DoesMIMETypeMatchDocumentType().
• Bundle::DocumentType now contains the document type's list of MIME types (if any), as well as flag indicating if the document is a package.
  
• Added Document::GetIcon().
  
• Added support in Icon for icons that don't have an associated file.
• A window belonging to a never-before-saved document doesn't get a proxy icon any more, as per the Panther HIG.
  
• Fixed a bug where the About Box was appearing in the Window menu.
• Replaced uses of MAC_OS_X_VERSION_MIN_REQUIRED and MAC_OS_X_VERSION_MIN_REQUIRED with B_BUILDING_ON_10_3_OR_LATER, B_BUILDING_CAN_USE_10_3_APIS or B_BUILDING_CAN_USE_10_3_APIS_ONLY as appropriate.
• Ensured the source as well as the sample projects can compile under Jaguar.  Their deployment targets were set to 10.2 as well.
  
• Added 'CURS' resources for the up, down, and up-down cursors.  These cursors weren't available via SetThemeCursor() until Panther, and SplitView needed them.  They are only used when running on Jaguar.
• Fixed a bug in the definition of the ThrowIfNULLRsrc() macro.
  

Changes from version 0.2.0 to 0.2.1

• Fixed bug in CustomView::ControlDraw where sometimes the Draw() function wouldn't be given a GrafPtr even if it requested one in the view flags.
• The PLister and DragPeeker Xcode projects (still) contained a few absolute paths, which caused builds to break on every machine except the author's!  It's altogether too easy to mistakenly attribute an absolute path to a file in Xcode...
• Changed the release-building process to work around a bug in libtool where linking against a library archive (aka .a file) whose mod date had been changed would fail.
• Added a Project Builder project for the PLister sample.
• Removed COM constructs from PlugIn.

Changes from version 0.1.0 to 0.2.0

Major changes to the custom view classes

Major changes to the Undo system

The Undo architecture has been substantially reworked. Instead of a class hierarchy rooted in UndoManager, we now have a policy "class" called UNDO_POLICY with three concrete implementations:

• NullUndoPolicy, for applications that don't need to support Undo.
• MultipleUndoPolicy, for applications that need separate Undo and Redo
  stacks of arbitrary size.
• SingleUndoPolicy, for applications that only need a simple 1-level-deep
  Undo.

UNDO_POLICY also specifies transaction-like semantics.  An "action group" (the UNDO_POLICY's term for transaction) may be opened, after which any number of undoable actions may be added to the policy object.  To close the action group, one either commits the group or aborts it.  Committing records the group's actions for later Undo, whereas aborting discards the actions.  One may have nested open action groups.

The Application and Document classes now have an UNDO_POLICY template parameter.  Undo-related functionality that used to be in AbstractDocument has been moved to Document.

A new class, Undo, allow clients to record undoable actions as well as open action groups without being coupled to a particular implementation of UNDO_POLICY.

A few convenience classes derived from UndoAction have been added:  UnaryUndoAction, BinaryUndoAction, and AEUndoAction.

Miscellaneous changes

• Added Array<> and MutableArray<>.
• Region has been replaced by Shape, MutableShape and AutoRegion.
  
• Added ViewProperties<>, MenuItemProperties<>, MenuCommandProperties<>, and WindowProperties<>.  These classes allow type-safe access to client-defined properties of toolbox objects.  They share a common templated implementation, which is now also shared by CollectionItem<>.
• Added more Doxygen comments.
• Fixed problems in the Xcode projects
• The localisation aspect of the PLister sample was quite broken.  Some of its .plist files weren't in the correct encoding.
• Changed the Apple Event functor to be true functors, i.e. they implement operator ().
• Toolbar has been enhanced quite a bit.  It's possible now to initialise it with the contents of a property list.  This makes it very easy to whip up simple toolbars, without having to subclass anything.
• Added some boost-style concept checking.  This work is ongoing.
• Simplified the EventHandler classes.  EventHandler is no longer a template class.  EventHandlerBase is gone, as are the EventFunctorMap classes.
• Changed Application::ShowAboutBox() so it gets the app description from a pre-defined key in InfoPlist.strings instead of Localizable.strings.
• Renamed CustomObject to EventTarget, which better explains what it does.
• Exceptions are now serialised when leaving a Carbon Event handler, and deserialised after sending a Carbon Event.
• Added more template specialisations of Event<>.
• Fixed bugs in HelpButton where the focus ring was leaving artifacts behind.
• Changed HelpButton so that if it's running under Panther and it's been given a CGContextRef, it will draw using the new HITheme APIs.
  
• CustomView wasn't correctly invalidating the view when in a non-composited window.