Facter known issues

These are the known issues in this version of Facter.

The implementation of the dot notation is not compatible with the Puppet ecosystem

The implementation of the dot notation feature in Facter 4 is not compatible with other parts of the Puppet ecosystem, and does not give the fact the same name as Facter 3. Facter 4.1 will revert back to the way Facter 3 handled facts with dotted names. FACT-3004

Incorrect OS description output on Debian 9

Running the facter command in Facter 4 returns incorrect output for the os.distro.description fact on Debian 9. These facts work correctly in Facter 3 and appear differently when running the puppet facts diff command in Facter 4. FACT-2963