I talk about the two most known uses of this word in English, one the very common "self-deprecating," and the other, the less well-known sense in computing. Along the way, I discover that the two big dictionaries, the Oxford English Dictionary and the Merriam-Webster Unabridged, don't include the latter meaning, and the definition in the OED hasn't been updated fully in a long time.
Collins COBUILD Dictionary
https://www.collinsdictionary.com/dictionary/english/deprecate (scroll down)
Dictionary of Computer Science, Engineering and Technology (editor: Philip A. Laplante), Boca Raton, FL: CRC Press, 2017