druid-0.16.1-incubating

Apache Druid 0.16.1-incubating is a bug fix and user experience improvement release that fixes a rolling upgrade issue, improves the startup scripts, and updates licensing information.

Bug Fixes
#8682 implement FiniteFirehoseFactory in InlineFirehose
#8905 Retrying with a backward compatible task type on unknown task type error in parallel indexing

User Experience Improvements
#8792 Use bundled ZooKeeper in tutorials.
#8794 Startup scripts: verify Java 8 (exactly), improve port/java verification messages.
#8942 Improve verify-default-ports to check both INADDR_ANY and 127.0.0.1.
#8798 Fix verify script.

Licensing Update
#8944 Add license for tutorial wiki data
#8968 Add licenses.yaml entry for Wikipedia sample data

Other
#8419 Bump Apache Thrift to 0.10.0

Updating from 0.16.0-incubating and earlier

PR #8905 fixes an issue with rolling upgrades when updating from earlier versions.
Credits
Thanks to everyone who contributed to this release!

@aditya-r-m
@clintropolis
@Fokko
@gianm
@jihoonson
@jon-wei

Apache Druid (incubating) is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache Incubator. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF.