We're excited to announce the general availability of our latest release, Druid 0.9.2!
Druid 0.9.2 contains hundreds of performance improvements, stability improvements, and bug fixes from over 30 contributors. Major new features include ability to disable rollup at ingestion time, a new groupBy engine, ability to filter on longs, new encoding options for long-typed columns, performance improvements for HyperUnique and DataSketches, a query cache implementation based on Caffeine, a new lookup extension exposing fine grained caching strategies, support for reading ORC files, and new aggregators for variance and standard deviation.
You can download the release here: /downloads.html
The full release notes are here: https://github.com/apache/incubator-druid/releases/druid-0.9.2