Was 'Oumuamua (and the class of interstellar objects) a natural body, or — as a minority argue — possibly artificial?
No material change. The Wikipedia article reinforces that the scientific consensus favors a natural origin (most astronomers concluded it was a natural object by July 2019), with recent proposals (2023) attributing the non‑gravitational acceleration to outgassing of molecular hydrogen from an icy body. The artificial (lightsail) hypothesis remains a minority speculation with no supporting evidence.