c. nice() Windows implementation
d. ZEND_ACC_CLONE removed
e. IS_TYPE_IMMUTABLE removed
+ f. zend_arg_info.class_name removed
2. Build system changes
a. Unix build system changes
e. IS_TYPE_IMMUTABLE is removed, IS_TYPE_COPYABLE can be used instead
Z_IMMUTABLE() check function is still available
+ f. zend_arg_info class_name member is removed, use ZEND_TYPE_NAME instead
+
========================
2. Build system changes
========================