AIGN OS 2.0 – The Operating System for Responsible AI Governance is the world’s first certifiable AI Governance Operating System aligned with Europe’s 2025 integrated regulatory architecture. The system operationalises the EU AI Act (Reg. 2024/1689), GDPR 2.0 (Digital Omnibus Package 2025), the EU Data Act, NIS2, DORA, ISO/IEC 42001 and the Data Governance Act into a unified, auditable governance infrastructure. AIGN OS 2.0 introduces a seven-layer governance architecture that integrates organisational accountability, lifecycle controls, compliance engines, sector-specific frameworks, operational toolchains, maturity diagnostics, and trust-infrastructure certification pathways. It enables organisations to implement governance-by-design from the first line of code to post-deployment monitoring. This edition embeds Europe’s new architecture-driven regulatory paradigm, including:• entity-relative identifiability (GDPR Art. 4),• EU-level pseudonymisation criteria (Art. 41a),• machine-readable consent signals (Art. 88b),• the lawful basis for AI training and operation (Art. 88c),• harmonised EU DPIA templates & black/whitelists,• unified GDPR–NIS2–DORA Single Entry Point incident logic,• Business Wallet–ready evidence bundles, and• Data Union Strategy safeguards for cross-border data flows. AIGN OS 2.0 transforms AI governance from reactive compliance into architecture-driven systemic control. It provides operational maturity assessments (ASGR Index), sector frameworks (Global, SME, Education, Agentic AI, Culture, Data Governance), and certifiable trust labels for enterprises, education systems, and agentic-AI operators. Developed and authored by Patrick Upmann, the Architect of Systemic AI Governance, AIGN OS constitutes protected intellectual property under EU copyright and digital infrastructure law. Redistribution, certification, commercial use or institutional deployment requires a valid AIGN License. © 2025 Patrick Upmann – All Rights Reserved.