WoW API: change summaries

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This page lists archived summaries of changes to the WoW API (including the Widget API and Lua functions) as seen on forums and other places.

For changes to FrameXML, see http://wdn.wowinterface.com, it has a full repository of all FrameXML versions, including on-line diff engines and the works.

Version 2.3 (20300)

	API	Change Description
Macro Commands
	/petautocasttoggle <slot or name>	Changes autocast status of a pet ability .
	/targetlastenemy	Targets last enemy
	/targetlastefriend	Targets last enemy
	/cancelform	Recognized instantly
	conditional abbreviations	modifier -> mod, button-> btn, actionbar -> bar, equipped -> worn, stance -> form.
Frame methods
	UpdateScrollChildRect	Automatically called when a child frame, texture or fontstring changes.
	Frame:IsEventRegistered	Determines if a frame is registered for a specific event.
	FontString:SetFormattedText	Reduces garbage generated by format calls.
	Button:SetFormattedText	Reduces garbage generated by format calls.
	FontString:GetHeight	Returns a font string's height.
	FontString:GetWidth	Now takes an optional argument explicit, which, if provided and true, returns 0 if the width has not been explicitly set rather than returning the effective width. Defaults to false.
	FontString:GetWidth	Now takes an optional argument explicit, which, if provided and true, returns 0 if the width has not been explicitly set rather than returning the effective height. Defaults to false.
	EditBox:SetCursorPosition(position)	Allows setting cursor position.
	EditBox:GetCursorPosition()	Returns cursor position.
	GameTooltip:SetTrackingSpell()	GameTooltip:SetTracking()
Frame Support
	GetFramesRegisteredForEvent	Returns a list of frames registered for a specific event.
API
	PickupItem	Picks up a specific item (by id or item string) from anywhere in your bags.
	GetItemCount	New includeUses flag that returns the same value that GetActionCount() would for that item
	GetSpellCount	Given a spell ID/name, returns the same value that GetActionCount() would return for that spell