Inkscape has released an early beta 1.0 version of its fine software here. It’s going to be mandatory for those of use using the latest Mac software, since prior Inkscape versions are not compatible with macOS Catalina. Good news: Inkscape is now a native application — no need for XQuartz.
If you decide to replace an earlier Inkscape version on your computer, remember to salvage the defaults.svg file you’re been using. Move it into the new application to save your preferred settings.