Hi, Puppet 4 has been released and will require manual intervention. I'll push a package to [community-testing] soon, but I think this is worthy of a news announcement before hitting [community]. I'm in two minds about keeping a puppet3 package around, some users may want to stick with that for now; I would be interested to hear some opinions. Puppet 4 has been released and breaks compatibility with version 3. Therefore users will need to upgrade a server to Puppet 4 before updating their clients. Note that if only a Puppet 4 server is available, Puppet 3 clients will not work. Also a number of locations for things have changed including the config, manifest and module files. You will need to follow upgrade instructions for your servers and clients: https://docs.puppetlabs.com/puppet/4.0/reference/upgrade_server.html https://docs.puppetlabs.com/puppet/4.0/reference/upgrade_agent.html If we are providing puppet3: Users can opt to stick with Puppet 3 by installing puppet3 from [community]. -- Jonathan Steel