Github user jvwing commented on the issue: https://github.com/apache/nifi/pull/2140 More migration notes: * My 1.3.0 AWS processor worked OK without modification when used with this PR. * My 1.3.0 AWS controller service did not work with just the NAR file, with the expected incompatibility error: > AWS Credentials Provider service' validated against '8902b809-015e-1000-46c3-e321c1d9a1b4' is invalid because SampleAWSCreds - 1.3.0 from sample - sample-aws-services-nar is not compatible with AWSCredentialsProviderService - 1.4.0-SNAPSHOT from org.apache.nifi - nifi-aws-nar * However, if `nifi-aws-nar-1.3.0.nar` was included side-by-side with `nifi-aws-nar-1.4.0.nar`, the 1.3.0 processor worked with the 1.3.0 controller service, unchanged. @bbende , I'm not sure the last option is what you described above. I was expecting to add more NARs. But it seemed plausible that the monolithic nature of nifi-aws-nar-1.3.0.nar might make it easier to dump in side-by-side?
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