This release includes the following changes:
- #418 Drops support for Python versions older than 3.5
- #397 Drops python-dateutil dependency to just use built-in datetime instead
- #392, #402 Fixes bugs with deterministic ID generation
- #393 Fixes bug when using SSDEEP hashes
- #404 Fixes bug with "import *"
- #400 Fixes bug with pattern builder and STIX 2.0 Start/Stop timestamps
- #407 Fixes bug to allow granular markings with 'id' as selector
- #409 Fixes bug with 2.1 object reference properties
- #401 Fixes bug where some objects can be versioned and revoked that shouldn't
- #417 Improves efficiency of ListProperty