Upgrading 1.0.0 to 1.0.2

[Victor Tso-Guillen]

I wanted to make sure that there's full compatibility between minor
releases. I have a project that has a dependency on spark-core so that it
can be a driver program and that I can test locally. However, when
connecting to a cluster you don't necessarily know what version you're
connecting to. Is a 1.0.0 cluster binary compatible with a 1.0.2 driver
program? Is a 1.0.0 driver program binary compatible with a 1.0.2 cluster?