Latest and greatest: Elasticsearch 6.3.0 features Java 10 support


Elasticsearch, the RESTful search and analytics engine, has a new update ready. Elasticsearch has been a fan favorite for quite some time, even showing up in our 2017 database trends survey as one of the most interesting databases. (59% of people stated an interest in Elasticsearch. We hope to see that number grow in the next survey!)

It’s easy to see why it’s such a captivating tool. Elasticsearch allows you to search and analyze your data in a big way, helping you make connections and understand trends and patterns that you never previously considered. Getting sucked into the world of data exploration has never been easier or faster.

Elasticsearch version 6.3.0

So, what’s new? It may be a minor update, but there’s some new goodies worth taking a look into.

Java 10 support

With the new timed Java release schedule, Elasticsearch is keeping up with the fast-paced JDK cycle. The last Elasticsearch update came with Java 9 support, so it’s safe to assume that as the six-month release cycle continues, Elasticsearch will also update their support.

(Interesting to note, the release blog suggests that users stay with Java 8 for now. How will users be affected by the public updates for Java 8 ending in January 2019? Developers are hanging onto Java 8 even as the clock ticks down.)


Experienced in SQL but don’t know how to migrate that knowledge over to Elasticsearch? Say no more. Elasticsearch has been listening to developers and has entered the experimental phase of SQL efforts. They are also looking to receive feedback on any potential bugs or necessary features to add in the next release. From the release blog: “Our hope is to allow developers, data scientists, and others that are familiar with the SQL language — but so far unfamiliar with or unable to use the Elasticsearch query language — to use the speed, scalability, and full-text power that Elasticsearch offers and others have grown to know and love.”

SEE ALSO: Meet dejavu, the Elasticsearch web UI that supports importing data via JSON and CSV files


Users can now create a rollups in Elasticsearch. Rollup jobs will roll up aggregate statistics about recently updated data so you can search through it. Just as SQL, this is an experimental update so if you experience bugs or have suggestions for the next version, be sure to contact Elastic with your concerns.

Security updates

Elasticsearch 6.3.0 keeps up to date on security vulnerabilities to protect sensitive data. Update to the latest version in order to keep your security in check!

Bug fixes

Of course, nothing is perfect and the newest version of Elasticsearch fixes some troublesome bugs. If you’ve been experiencing problems, search through the release notes and see if your sticky situation is listed.

Check out the release blog here and see for yourself what great features are in store.

Last year we spoke with Shay Banon, founder and CEO of Elastic, who said that: “When I first released Elasticsearch, I had one goal. Make it simple for a developer to get started, download, and install Elasticsearch on their laptop, load data into it, and get really fast results in milliseconds or less. Today we have more than 130 million downloads of our software and our community has grown to more than 100,000 developers across 100 countries.”