Changelog

All notable changes to the ATHENA API.

v1.0.0 (December 25, 2025)

Initial Release 🎉

Features

• ✅ 28 API endpoints — Complete trust calibration infrastructure

• ✅ Multi-tenant architecture — Row-level security isolation

• ✅ 5 intelligence engines — Patent-pending proprietary algorithms

• ✅ Enterprise webhook system — HMAC-SHA256 signatures, retry logic

• ✅ 5 compliance export templates — EU AI Act, Texas TRAIGA, Colorado, FDA, California SB-53

• ✅ JavaScript + Python SDKs — Full-featured, type-safe clients

• ✅ Enterprise dashboard — 25 components, real-time analytics

Validation

• 390,043,088 records processed across 14 industries

• 2 patent-pending algorithms (USPTO-001, USPTO-002)

• Zero technical debt (Stage 8 complete)

Compliance

• EU AI Act Article 14 ready

• Texas TRAIGA compliant

• Colorado AI Act compliant

• FDA AI/ML Guidelines compliant

• California SB-53 ready

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v1.1.0 (December 27, 2025)

External Bias Integration 🔗

Features

• ✅ External Bias Integration — Ingest fairness metrics from IBM AIF360, Fairlearn, AWS Clarify, Google Vertex

• ✅ Bias Amplification Detection — Detect when human behavior amplifies model bias

• ✅ 7 new API endpoints — /model-fairness-signals and /bias/amplification

• ✅ 2 new webhook events — model.bias.ingested, bias.amplification

• ✅ Dashboard components — ExternalBiasSignals, AmplificationRiskCard

• ✅ SDK methods — 5 new methods in JavaScript SDK

API Changes

Endpoint	Method	Description
/model-fairness-signals	POST	Ingest external fairness signal
/model-fairness-signals	GET	List fairness signals
/model-fairness-signals/:id	GET	Get single signal
/bias/amplification	GET	List amplification alerts
/bias/amplification/:id	GET	Get single alert
/bias/amplification/:id	PATCH	Update alert status
/bias/amplification/analyze/:signalId	POST	Trigger analysis

Compliance

• EU AI Act Article 10 (Data Governance) integration documented

• EU AI Act Article 14 (Human Oversight) failure detection enhanced

• Colorado AI Act § 1702 subgroup impact analysis

SDK Versions

• @athena-ai/sdk v1.1.0

• athena-sdk (Python) v1.1.0

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Upcoming

v1.2.0 (Q1 2026)

Planned Features:

• SSO integration (SAML 2.0, OIDC)

• Custom thresholds API

• Batch decision logging

• Enhanced analytics dashboard

v1.3.0 (Q2 2026)

Planned Features:

• Go SDK

• Ruby SDK

• Advanced bias detection algorithms

• ML-powered pattern detection

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Versioning Policy

ATHENA follows semantic versioning:

• Major (X.0.0): Breaking changes

• Minor (0.X.0): New features, backward compatible

• Patch (0.0.X): Bug fixes, backward compatible

API Versioning

The API version is included in the URL:

https://api.athenatrust.ai/v1/calibrate

When we release v2, both versions will be supported:

https://api.athenatrust.ai/v1/calibrate  # Still works
https://api.athenatrust.ai/v2/calibrate  # New version

Deprecation Policy

• 12 months notice before deprecating any endpoint

• Email notification to all API key owners

• Migration guide provided for all breaking changes

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Subscribe to Updates

Get notified about API changes:

1. Email: [email protected]

2. Webhook: Subscribe to api.updated event

3. RSS: https://docs.athenatrust.ai/changelog.rss

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