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Copy file name to clipboardExpand all lines: CHANGELOG.md
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# Changes to ATT&CK in STIX 2.1
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## 28 October 2025 - ATT&CK Spec v3.3.0
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Changes to ATT&CK in STIX for the October 2025 ATT&CK Content Release (ATT&CK v18.0)
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* Added Analytic objects. For detailed information about the representation of Analytics in ATT&CK/STIX, please see the [ATT&CK Data Model schema documentation](https://mitre-attack.github.io/attack-data-model/docs/reference/schemas/sdo/analytic.schema).
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* Added Detection Strategy objects. For detailed information about the representation of Detection Strategies in ATT&CK/STIX, please see the [ATT&CK Data Model schema documentation](https://mitre-attack.github.io/attack-data-model/docs/reference/schemas/sdo/detection-strategy.schema).
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* Deprecated Data Source objects. These objects will be removed in ATT&CK Spec v4.
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* Modified Data Component objects:
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* Assigned an ATT&CK ID to each Data Component object.
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* Added the `x_mitre_log_sources` property. See the [ATT&CK Data Model schema documentation](https://mitre-attack.github.io/attack-data-model/docs/reference/schemas/sdo/data-component.schema#xmitrelogsources) for a description of this new property.
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* Deprecated the `x_mitre_data_source_ref` property. This property will be removed from the spec entirely in ATT&CK Spec v4.
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* Modified Technique objects:
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* Deprecated the following properties, which will be removed from the spec entirely in ATT&CK Spec v4.
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*`x_mitre_detection`
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*`x_mitre_system_requirements`
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*`x_mitre_permissions_required`
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*`x_mitre_effective_permissions`
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*`x_mitre_data_sources`
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*`x_mitre_defense_bypassed`
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*`x_mitre_remote_support`
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* Deprecated the `x_mitre_data_component``--detects-->``attack-pattern` relationship object. These will be removed in ATT&CK Spec v4. This has been replaced by the `x_mitre_detection_strategy``--detects-->``attack-pattern` relationship object.
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## 22 April 2025
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There are no changes to the data model in the April 2025 ATT&CK Content Release (ATT&CK v17.0)
Copy file name to clipboardExpand all lines: USAGE.md
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### taxii2client
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At present there is no TAXII 2.1/STIX 2.1 server for the content of this repository. If you wish to access ATT&CK via TAXII you will need to use our TAXII 2.0/STIX 2.0 server instead. Please see our [MITRE/CTI GitHub repository](https://github.com/mitre/cti), and [the accompanying docs for our TAXII 2.0 server](https://github.com/mitre/cti/blob/master/USAGE.md#access-from-the-attck-taxii-server), for information about using that version of the dataset.
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Information on the TAXII 2.1/STIX2.1 server can be found in [the TAXII server repository](https://github.com/mitre-attack/attack-workbench-taxii-server).
@@ -136,7 +136,7 @@ Some users may instead prefer to access "live" ATT&CK content over the internet.
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### Access from the ATT&CK TAXII server
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At present there is no TAXII 2.1/STIX 2.1 server for the content of this repository. If you wish to access ATT&CK via TAXII you will need to use our TAXII 2.0/STIX 2.0 server instead. Please see our [MITRE/CTI GitHub repository](https://github.com/mitre/cti), and [the accompanying docs for our TAXII 2.0 server](https://github.com/mitre/cti/blob/master/USAGE.md#access-from-the-attck-taxii-server), for information about using that version of the dataset.
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Information on the TAXII 2.1/STIX2.1 server can be found in [the TAXII server repository](https://github.com/mitre-attack/attack-workbench-taxii-server).
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### Access the most recent version from GitHub via requests
The [collection index](/index.json) on this repository contains a full list of versions for each domain of ATT&CK. See our [collections document](https://github.com/center-for-threat-informed-defense/attack-workbench-frontend/blob/master/docs/collections.md#collection-indexes) for more information about the format of collection indexes. You can also find a human-readable version of that file in [index.md](/index.md).
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The [collection index](/index.json) on this repository contains a full list of versions for each domain of ATT&CK. See our [collections document](https://github.com/center-for-threat-informed-defense/attack-workbench-frontend/blob/main/docs/collections.md#collection-indexes) for more information about the format of collection indexes. You can also find a human-readable version of that file in [index.md](/index.md).
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The collection index was added in the upgrade to STIX 2.1 and is not available for [the STIX 2.0 dataset](https://github.com/mitre/cti).
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