Today, the new constitution of Aquria-Catopolis was ratified. The Government of Catopolis declared by proclamation: https://scratch.mit.edu/projects/1201496495/

For the full document, see here: https://uracgov.wixsite.com/laws-lois

The document adds Aquria as a province of Catopolis and renames the country to Aquria-Catopolis, among other things.