The only change in entities from 1.01 to 1.02 that I'm aware of so far is that all structures (planet modules, starbases) have a new/changed line for controlling "rotate to planet" settings. Simply replacing that line in all affected entities in my own mods seems to have restored compatibility with 1.02.
I have not checked to see if there any additions to the string file for 1.02. That's also a common thing that changes from patch to patch.
It's possible that there may be other changes but my own mods contain pretty much all entity types commonly modified and those were the only ones affected by 1.02. It's not that daunting a task to update fore 1.02 but it will vary from mod to mod.
-dolynick