Title says it all. Why do they become deprecated? Is it bad to use them?
COMMUNITY QUESTION
Why are events, properties, functions, classes deprecated?
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http://robloxdev.com/articles/Deprecation
Yes in most cases they are being replaced with better functions. They are kept there for backwards compatibility only.
Yeah but why do events like KeyDown get deprecated I always used it. I saw nothing bad with it.
The Mouse instance in general is going to be deprecated eventually. UserInputService is shaping up to (and should be) the singular and unified way of handling user input.