Important note from the authors: do NOT install the plugin from here

The plugin in the WordPress plugin repo is outdated, and you should NOT use it for new sites.

Instead, either install the plugin as a composer package(see here https://docs.carbonfields.net/#/quickstart), or read this page to get a recent build of the library as a plugin: https://docs.carbonfields.net/#/plugin-quickstart?id=without-composer

—

The reasons for this are quite technical and are described here: https://carbonfields.net/2017/07/31/carbon-fields-distribution-woes/

The TLDR is that Carbon Fields is not a plugin on it’s own, but rather a library that other plugins and themes use. That being said, it shouldn’t be updated by end users, but by developers.