To help us track planned / finished configuration renames, defaults changes, and configuration deprecation for the upcoming 1.5.0 release, I have created https://issues.apache.org/jira/browse/SPARK-9550.
As you make configuration changes or think of configurations that need to be audited, please update that ticket by editing it or posting a comment. This ticket will help us later when it comes time to draft release notes. Thanks, Josh
