Upgrade Elm projects
elm-upgrade is a command-line tool that automates the upgrade of Elm projects from version 0.18 to 0.19, handling tasks like converting project configuration files, updating dependencies, and transforming code syntax. The tool leverages elm-format to perform code transformations, including converting escaped character syntax, inlining removed functions, and updating HTML style attributes to match the new API. It is distributed via npm and built for the Elm programming language ecosystem. The project is maintained by avh4, as evidenced by the repository URLs in the documentation.