On a new environment we have installed the Octopus server and tentacles and imported a backup of a previous working installation.
Deployments from the new setup just hang, no timeouts, no errors they get stuck during the nuget package download.
I am at a loss as to how to troubleshoot this issue since I do not see errors and there are no connectivity issues between the server and the tentacles and the nuget packages are accessible as well.
To upgrade from 2.x to 3.x you need to have a valid maintenance on your license. If this has expired renewing your license is all you need to qualify for 3.x.
We have an upgrade self-service page where you can get a quote/invoice: https://octopus.com/upgrade