Changes for version 2.00
- BACKWARDS INCOMPATIBILITIES
- The no_refs constructor parameter is now deprecated, and has been replace by a new unsafe_ref_capture parameter that defaults to false, meaning no references are captured by default. Capturing references by default caused too many issues that couldn't be worked around, including running DESTROY blocks multiple times on captured objects in the worst case.
- Removed support for the long-deprecated no_object_refs constructor parameter (deprecated in 2002!).