  This paper contains corrections to Madea, Rosenberg, Torres-Ardila, "The
Geometry of Loop Spaces II: Characteristic Classes," Advances in Math. (287),
2016, 485-518. The main change is that results about $\pi_1({\rm Diff}(M))$ are
replaced by results about $\pi_1({\rm Isom}(M))$, where Diff$(M)$, Isom$(M)$
refer to the diffeomorphism and isometry group of the manifold $M$.
