VectorからInlineArrayに名前が変わってAcceptされましたね。

Regarding the name Vector, the Group broadly agreed with the arguments that the mismatch in meaning of 'vector' between Swift and some other peer languages like C++ and Rust would be unfortunate.

https://forums.swift.org/t/accepted-with-modifications-se-0453-inlinearray-formerly-vector-a-fixed-size-array/77678 (edited)

[Accepted with modifications] SE-0453: InlineArray (formerly: Vecto...

Hello Swift community, The second review of SE-0453: Vector, a fixed-size array concluded on December 17, 2024. The Language Steering Group has decided to accept this proposal with modifications. In addition to a couple small API changes, this type will be introduced with the name InlineArray. API Changes The following proposed initializer: p...