How to release a theme app extension with the node based CLI

I’ve previously been using the shopify-cli ruby gem to release my theme app extension.

To do that I had a .env file in the theme-app-extension directory that was generated by the CLI tool, and then I ran shopify extension push to push the gem to Shopify.

I can still run shopify extension push but then when I get to the release page it complains that I’m not able to release that new version until I update the CLI. (This requirement to be using a particular CLI version seems unnecessary given the fact that Shopify accepts the push via shopify extension push.)

I’ve looked into the new node base tool, but the command set has changed and I don’t find anything with any obvious correlation to shopify extension push from the Ruby CLI.

Given that I already have a working theme app extension in production, and have been able to push and test new updates in my development app, what’s the shortest path to being able to release a new version to production?