Hi
igortyhon, by default, the plugins should autofill those fields with whitespace, which automatically fills the latest recommended version without any intervention.
However, the list for recommended versions should be in the Recommended versions.txt file in the collection. It turns out that for the Mobile Firebase Analytics plugin, the guide wasn't included. That was my mistake, I accidentally wrote it in the generated folder instead of the template folder, thus got overwritten upon release. It's due to a new automation script, so I got confused. Thank you for pointing that out.
If you still want to manually input the versions you want to use, the Firebase SDK plugin folder should have the recommended versions list and guide.
Feel free to use whitespace, which the plugin automatically generates when added, to use the latest version without your intervention. I will check very soon to see if it works as expected, just in case.
I hope that helps.