anchor.diff:  * For custom `TraversalStrategy` implementations, change `traverser.getEngine().isGraphComputer()` to `TraversalHelper.onGraphComputer(Traversal)`.
   * For custom `Steps`, change `implements EngineDependent` to `implements GraphComputing`.
   
  +See: link:https://issues.apache.org/jira/browse/TINKERPOP-971[TINKERPOP-971]
  
positive.code: the side-effects it will use during its execution lifetime. If the user's traversals use standard side-effect Gremlin
  steps (e.g. `group("m")`), then no changes are required.
  
  TraversalSideEffects Add Requirement
  ++++++++++++++++++++++++++++++++++++
  
  
negative.code: ==>1
  ```
  
  See: link:https://issues.apache.org/jira/browse/TINKERPOP-1192[TINKERPOP-1192],
  https://issues.apache.org/jira/browse/TINKERPOP-1166[TINKERPOP-1166]
  
  ProfileStep Update and GraphTraversal API Change
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  