InDesign now lets you import the SVG and SVGZ format files in InDesign and InCopy documents. Earlier, SVGs from CC libraries were imported as PNGs in InDesign.
SVG (Scalable Vector Graphics) is a vector format that describes images as shapes, paths, text, and filter effects. The resulting files are compact and provide high-quality graphics on the web, in print, and even on resource-constrained handheld devices.