--- /dev/null
+# WARNING: default set configuration, DO NOT CHANGE.
+# If you want to change anything redefine the relevant section in
+# /etc/portage/sets.conf. Any changes to this file will be lost on the next
+# portage update, and configuration errors here might upset portage in
+# unexpected ways.
+
+# Not much that could be changed for world, so better leave it alone
+[world]
+class = portage.sets.files.WorldSet
+
+# Same as for world, though later portage versions might use a different class
+[system]
+class = portage.sets.profiles.PackagesSystemSet
+
+# For security there are multiple classes available, but differences are
+# rather small (normally there should be no visible difference):
+# - AffectedSet: include all GLSAs that cover a vulnerable package
+# - NewAffectedSet: include all GLSAs that cover a vulnerable package and
+# haven't been applied previously
+# - NewGlsaSet: include all GLSAs that haven't been applied
+# - SecuritySet: include all GLSAs
+[security]
+class = portage.sets.security.NewAffectedSet
+
+# Again, not much to change here, though people might prefer a different name
+[everything]
+class = portage.sets.dbapi.EverythingSet
+
+# The following treats all files in /etc/portage/sets as a package set called
+# 'sets/$filename'.
+[usersets]
+class = portage.sets.files.StaticFileSet
+multiset = true
+directory = /etc/portage/sets