The Spark Component Guide and Command Line Installation Guide were updated to reflect new Spark features. Here are links to several of the latest features:

The Zeppelin Component Guide was updated with additional details and examples for configuring Zeppelin with LDAP/AD and Kerberos security; see Configuring Zeppelin Security. In addition, the documentation for interpreters and user impersonation was extended. Portions of this information that apply to HDP 2.5 were also added to the Security chapter in the HDP 2.5 Zeppelin Component Guide.

In the messaging area, the Kafka Component Guide has additional information in Configuring Kafka for a Production Environment.

Check out these updates and leave us some feedback in HCC!

Thanks!
Hortonworks Technical Documentation Team