Apache Arrow 0.15.0 was just released see https://arrow.apache.org/blog/2019/10/06/0.15.0-release/
There are a number of fixes and improvements including a change to the binary IPC format https://issues.apache.org/jira/browse/ARROW-6313.
The next planned release will be 1.0.0, so it would be good to upgrade Spark as a preliminary step.
Updated to use Apache Arrow 0.15.1, which was released soon after 0.15.0 to include some important bug fixes.
change log at https://arrow.apache.org/release/0.15.1.html