The Scrum Guide says this about the Sprint
The heart of Scrum is a Sprint, a time-box of one month or less during which a “Done”, useable, and potentially releasable product Increment is created.
I’m wondering why it calls out usable - It seems to me that “Potentially Releasable” implicitly infers usable - if it’s not usable it’s not releasable
Is this to cover off the situation where a team might choose to have some kind of technical sprint where they don’t build any usable functionality?
or something else?
The Artefacts section separates them out
The increment must be in useable condition regardless of whether the Product Owner decides to release it.
I know that the word is there for a reason, I would like to know for sure ( not guessing ) what the exact reason is.