Apache Ambari Release Notes
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Behavioral Changes

Ambari 2.5 introduces the following changes in behavior as compared to previous Ambari versions:

Table 1.2. Ambari 2.4 Behavioral Changes

Title

Description

HDP 2.2 Support Removed

Ambari support for HDP 2.2 is removed with Ambari 2.5.

SmartSense Mandatory InstallationFor new installs, SmartSense will be installed by default. Entering your Hortonworks SmartSense ID is still required to activate SmartSense. No bundles will be captured and sent until the a valid SmartSense ID is entered.