Version 2.1

Major Changes

• Handle SCOs
• Enable use of custom properties for properties missing from STIX 2.x
• Support all additional properties and property name changes for version 2.1
• Handle UUIDv5 for SCOs in version 2.1

Other Changes

• Fix patterns involving PE binary file header
• Handle characteristic observables in infrastructure
• Better mapping of STIX 1.x relationship types to STIX 2.x ones
• Update logic to create TLP markings as stated in the specification
• issue #148 - support ports CybOX object
• Handle “Contains” operator more correctly

Testing Changes

• Compare UUIDv5 for equality