Puppet Platform 5.5.0 is a bug-fix and feature release that adds agent support for Fedora 27, adds several stdlib functions to Puppet's core functions, improves the puppet config command and yumrepo provider, restores the ability to upload facts to Puppet Server and other Puppet masters, and adds additional performance metrics to the run report.
Puppet Server 5.3.0 can now use some gems shipped by puppet-agent and compresses catalog response bodies. PuppetDB 5.2.1 improves the performance of fact queries. Facter 3.11 fixes an issue with uptime tracking in Windows and reports SSH key types in the `ssh` fact.
For details, see the release notes for Puppet agent 5.5.0, Facter 3.11.0, Puppet Server 5.3.0, and PuppetDB 5.2.1.