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PyPI · #4641 most downloaded on PyPI
Produce and consume STIX 2 JSON content
Last release 7 months ago
12 Feb 2026
Ships unpredictably
gaps range from 3 weeks to 4.4 years
Nearly every release is documented
notes for 24 of 26 stable releases
Nothing withdrawn
no release was ever pulled
10 years old
26 releases · first in 2017
Fix pattern semantic equivalence comparison expression DNF transformer bug by @chisholm in https://github.com/oasis-open/cti-python-stix2/pull/534
interoperability parameter to avoid issues loading STIX documents with non random UUIDs by @chrisr3d in https://github.com/oasis-open/cti-python-stix2/pull/620Full Changelog: https://github.com/oasis-open/cti-python-stix2/compare/v3.0.1...v3.0.2
One column per quarter.
interoperability parameter to avoid issues loading STIX documents with non random UUIDs by @chrisr3d in #620Full Changelog: v3.0.1...v3.0.2
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This version aligns with the STIX 2.1 CS 03 (WD12) document, also known as the "OASIS Standard".
This version aligns with the STIX 2.1 CS 03 (WD12) document, also known as the "OASIS Standard".
Main Changes #509 Add Sighting.summary default value #503 Revamp how STIX content customization is detected and enforced enhancement #500 fp write for STIX Objects #492 Drop 'six' dependency (backwards breaking) #490 Change canonicalization to normalization #489 Fix observation expression DNF transformer to preserve FOLLOWEDBY order. #485 Update CustomObservable decorator #483 add is_sdo() et al functions #481 Refactor stix2.parsing into more focused modules #480 Support Pagination in TAXII DataStore #476 FileSystemsSink.add creates an additional level of directory hierarchy #458 Versioning refinements #468 Extensions Support
Changes for CS03 #517 Update links in code to current specification #515 Add new infrastructure-type-ov entries #514 Update Network Traffic for CS03 #504 Fix sighting.last_seen check
Semantic Similarity #499 Update incident weights for semantic similarity #496 Similarity/Equivalence Changes #493 Update the semantic equivalence user guide page #491 Graph Equivalence Changes
Testing, etc #482 Migrate test to GitHub Actions, update test & check configuration
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Fixes issue with PyPI.
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Fixes bugs when using allow_custom (#176, #179).
Fixes bug with incorrect TAXII parameters (#169).
Adds checks to ensure valid type names are provided.
get_dict to a private function.taxii2-client is now an optional dependency.Nothing published for this version
Adds creator_of function to easily get the Identity that created an object, and a serialize function for fast serialization without sorting properties
creator_of function to easily get the Identity that created an object, and a serialize function for fast serialization without sorting properties.Adds data stores, object factory, and the environment layer.
Nothing published for this version
Include support for serializing/deserializing all STIX objects and Cyber Observable objects.
Supports all SDOs, Relationships, Bundle (not Sightings).
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