I have probably 20 Ionic 6 projects and don’t want to spend all summer upgrading them…
Can I use ionic v6 for older projects and ionic v7 for new projects? If so, how?
Sure, just install the @ionic/cli@6.20.9 package in each Ionic v6 project and and call the CLI via npx ionic ....
Ionic CLI 7 removed support for ionic 1-3 I think, as long as you are in a newer version it should still work on 4-7 projects.