Keys in my inventory

Evidently one of the patches removed the keyring feature, and my inventory has five or six keys in it now, eg Boulderfist key and Northwind Cleft key. Do I still need these keys. Is there an up-to-date article somewhere that shows which keys I should keep? Stopped playing during Cataclysm in 2011.

Patch 4.2.0 (2011-06-28): Keyring removed. Existing keys either converted to gold, removed entirely, or moved to players’ bags.

Quite a while ago. You don’t really need them anymore, they were associated with quests that you probably completed years ago.

They were part of a quest

And you can toss them if have completed the quest

Ok, thanks!