- • New Object Model
- • Private and Protected properties
- • Objects are referenced and not copied by default
- • New cloning mechanism to copy objects
- • Nested class support which gives us Namespaces
- • Class destructors
- • Try/Catch exception handling
- • Dereference object directly from a function call
- • Native large number support
- • Bundle curl library to be used by streams-based connection handling
- • Move many extensions to PEAR/PECL
