oRA3

The next oRA
oRA3 features the following:

• Durability, Resistance and Zone. Available for everyone, and automatically filled, no need to run manual checks.
  
• Cooldown monitor for just about every spell with a longer cooldown.
  
• Invites based on guild rank, zone, keyword, and guildonly keyword
  
• Blizzard Maintank based maintank lists with custom sorting
  
• Promoting to raid assistant based on guild rank, a list of names or just everyone
  
• Intelligent readycheck window that will display a divider bar between groups 2 and 3 or 5 and 6 based on raid target settings
  
• Loot settings based on party or raid
  
• Works in party for readychecks, checks and cooldowns
  

oRA3 is not compatible with oRA2, and never will be.

MT API Example

Also look at SimpleTankFrames for some easy to understand code with no dependencies (except oRA3, obviously!).

Warning: does no combat checking, so will break when called in combat!

if oRA3 then
	oUF:SetActiveStyle("Ammo_Tiny")
	local maintanks = oUF:Spawn("header", "oUF_oRAMainTanks")
	maintanks:SetPoint("BOTTOMLEFT",UIParent, "CENTER", 450, 0)
	maintanks:SetManyAttributes(
		"yOffset", 2.9,
		"nameList", table.concat(oRA3:GetSortedTanks(), ","),
		"template", "oUF_AmmoMainTank",
		"showRaid", true,
		"initial-unitWatch", true,
		"point", "BOTTOM",
		"sortDir", "DESC"
	)
	local tankhandler = {}
	function tankhandler:OnTanksUpdated(event, tanks) 
		maintanks:SetAttribute("nameList", table.concat(tanks, ","))
	end
	oRA3.RegisterCallback(tankhandler, "OnTanksUpdated")
	maintanks:Show()
end

Remember to file a ticket if you find a problem or want to request a feature.