Release v0.0.19-alpha

• New Signal implementation
• Remove Thread module in favor of new task.spawn and task.defer functions
• Add Janitor / Remove Maid
• Add Timer module

---

MIGRATION FROM v18 TO v19:

• Remove requires of Thread module
• Replace requires of Maid with Janitor
• Thread.Spawn -> task.defer
• Thread.SpawnNow -> task.spawn
• Thread.Delay -> task.delay
• Thread.DelayRepeat -> Use Timer class (see below)
• maid:GiveTask -> janitor:Add
• maid:GivePromise -> janitor:AddPromise
• maid:DoCleaning -> janitor:Cleanup
• maid[id] = nil -> janitor:Remove(id)

Timer class:
The Timer class makes it easy to schedule functions at certain intervals.

local Timer = require(Knit.Util.Timer)

local timer = Timer.new(1)
timer.Tick:Connect(function()
	print("Tock")
end)

timer:Start()
...
timer:Stop()
...
timer:Destroy()

Janitor class:
For the most part, swapping out Janitor for Maid should be quite seamless, as their APIs are nearly identical, besides some name changes. It is worth noting some significant changes:

• Instead of clearing an item from a maid using maid[id] = nil, Janitor has a dedicated Remove method, in which you pass in the ID that you explicitly gave it on Add. For instance: janitor:Add(item, nil, "SomeID"); janitor:Remove("SomeID").
• Janitor comes with a LinkToInstance, which lets you link the janitor instance to the life of a Roblox instance. If that instance is deparented, the janitor will be cleaned up.
• The Add method's 2nd parameter is an optional cleanup method name, which can be used if your object's cleanup method is different than Destroy.

Removal of Thread module:
With the addition of the built-in task library, the Thread module is obsolete.

• Use task.spawn to spawn a thread immediately (same behavior as Thread.SpawnNow).
• Use task.defer to schedule a thread to run using the internal deferral scheduling (still within the same frame). This is roughly a replacement for Thread.Spawn. If you still want to delay a frame, simply use task.delay(0, function() ... end).
• Use task.delay to schedule a thread to run after some period of time.
• Use Timer class instead of Thread.DelayRepeat.

Snippets:
If you use the VS Code snippets provided from the documentation, be sure to update them to use Janitor instead of Maid.