https://developer.roblox.com/en-us/api-reference/class/Teams
The spelling is inconsistent, as it switches between British and American English.
It first uses the British English spelling of the word “behavior” that has a u in it.
And then it switches to the American Spelling without the u.
This causes a lot of confusion since the DevHub is always in American English.
CameraRelative enum has been duplicated, with the second field replacing the MovementRelative enum.
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Needs update documentation for PlayerDisplayNamesEnabled and WhisperByDisplayName.
API in Studio atm (taken in December):
The CFrame API page uses :inverse() instead of :Inverse() in the mathematic explanation of the methods.
https://developer.roblox.com/en-us/api-reference/datatype/CFrame
https://developer.roblox.com/en-us/api-reference/function/UserInputService/GetDeviceGravity
CoordinateFrame (deprecated) instead of CFrame:
Uses a deprecated “Message” class:
https://developer.roblox.com/en-us/api-reference/function/BasePlayerGui/GetGuiObjectsAtPosition
Plus and minus symbols in left of code sample. It looks like it was copied and pasted from GitHub, which has plus and minus symbols next to code changes. Lines 21-24 and 48-51.
Can confirm that this typo has not been fixed yet 
Markdown Typo
Right below the Description the Example header says “##Example” instead of “Example”. I’m pretty sure that there’s supposed to be a space between the ## and Example so it gets formatted correctly.
Link:
Player:Kick
The Roblox account should not be in all caps, as the spelling was changed from ROBLOX to Roblox after this feature request.
I have 2 spotted typos:
https://developer.roblox.com/en-us/api-reference/property/Humanoid/MaxSlopeAngle
Wait() is lowercase
math.clamp function is LuaLibrary/math clamp. I know this is deprecated, please don’t hate on me.
I know this is deprecated, but I think that FloorWire’s page should say “Parts” or “BaseParts” instead of “bricks”. The description is also a bit confusing.
asdf
Update: They fixed it. Thanks.
A large number of release notes are skipped over
You can also see it here in Release Notes for 478
There is currently no way to access release notes 428-477 except by manually editing the URL in your browser. If you do, there are no navigation buttons along the bottom for all affected release note pages.
On the PVInstance article, I believe this sentence should be removed due to Pivots being part of PVInstance:
This class has existed since 2005, and while the class itself no longer has any functionality, it is used for adornable objects that can be connected to both BaseParts and Models.
https://developer.roblox.com/en-us/api-reference/property/DataModel/GameId
The link to game explorer is an old robloxdev link.
SpringConstraint’s page has some weird characters…
https://developer.roblox.com/en-us/api-reference/class/SpringConstraint
Link to Tait–Bryan angles doesn’t properly go to the correct anchor, the correct link is:
https://en.wikipedia.org/wiki/Euler_angles#Tait–Bryan_angles_2
https://developer.roblox.com/en-us/api-reference/function/Player/GetFriendsOnline
GetFriendsOnline returns a table of data, and unfortunately it doesn’t give you any data about what server (JobID) the player is actually in…
game.GameId rather than the game.JobId that they’re in 