[ANNOUNCE] Apache Druid 0.17.0 release

The Apache Druid team is proud to announce the release of Apache Druid 0.17.0.
Druid is a high performance analytics data store for event-driven data.

Apache Druid 0.17.0 contains over 250 new features, performance enhancements,
bug fixes, and major documentation improvements from 52 contributors. Major
new features and improvements include:

  • Batch ingestion improvements
  • Parallel query merging on brokers
  • SQL-compatible null handling
  • LDAP extension
  • Dropwizard emitter
  • Self-discovery resource
  • Supervisors system table
  • Fast historical start with lazy loading
  • Historical segment cache distribution change
  • New readiness endpoints
  • Support task assignment based on MiddleManager categories
  • Security vulnerability updates

Source and binary distributions can be downloaded from:
https://druid.apache.org/downloads.html

Release notes are at:
https://github.com/apache/druid/releases/tag/druid-0.17.0

A big thank you to all the contributors in this milestone release!

Congrats! This should be pinned, no?