Github user kevdoran commented on a diff in the pull request:
https://github.com/apache/nifi-registry/pull/131#discussion_r218507868
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nifi-registry-extensions/nifi-registry-ranger/nifi-registry-ranger-assembly/README.md
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+# NiFi Registry Ranger extension
+
+This extension provides `org.apache.nifi.registry.ranger.RangerAuthorizer`
class for NiFi Registry to authorize user requests by access policies defined
at [Apache Ranger](https://ranger.apache.org/).
+
+## Prerequisites
+
+* Apache Ranger 1.2.0 or later is needed.
--- End diff --
Is this correct? Based on the changes submitted to Apache Ranger that will
add support for this, it looks like it will require Apache Ranger >= 2.0.0,
correct?
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