The Xcode Localization Catalog is a collection of localization files in XLIFF 1.2 format, along with a Contents.json file that describes the catalog. SimpleLocalize already supports XLIFF 1.2 files. The goal of this feature request is to add support for uploading and downloading the entire .xcloc folder in SimpleLocalize and the CLI, providing the Contents.json file together with the localization files in one step.