The Profiler class in v1 is now a namespace in v2 meaning: You can't create a new Profiler class instance. Right now, only takeHeapSnapshot is available as static method.
In v1, the MemoryBuffer class had a property named address. The memory address which was returned by that property was not returning the value you did expect it to return - therefore it has been removed in v2. However, i still added the property and made it log an error message for the time being.