The Geometry of Loop Spaces II: Corrections

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 ${\pi }_1(\mathrm{D}\mathrm{i}\mathrm{f}\mathrm{f}(M))$ are replaced by results about ${\pi }_1(\mathrm{I}\mathrm{s}\mathrm{o}\mathrm{m}(M))$, where Diff$(M)$, Isom$(M)$ refer to the diffeomorphism and isometry group of the manifold $M$.