I hear people say "this tag is deprecated", but I never figure out how they come to that conclusion. (answer not in the comments, please.)
COMMUNITY QUESTION
How can you tell if a function or event is deprecated?
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On the roblox wiki it says if a thing is deprecated or not.
Additionally, the object browser strikes through deprecated items. Like you'll see HopperBin (which is deprecated) striked through.
If a property does not show up in the documentation on developer.roblox.com or Studio's Intellisense-style autocomplete, yet a replacement does (e.g. CFrame.Position but not CFrame.p), you can infer that the older option has been deprecated (since what hides things on the wiki docs is marking them deprecated).