RSP v2 (2023) → v3.0 (Feb 24, 2026): what changed additions in v3.0 • two-tier mitigation schedule (Anthropic-unilateral vs industry recommendation) • AI R&D-4 threshold (research automation) once crossed: publish affirmative case • Frontier Safety Roadmap (standing doc) • Risk Report (standing doc, retrospective) • RAND SL-4 security referenced (in the industry-recommendation tier) • acknowledgement: "confidently ruling out AI R&D-4 is becoming difficult" v3.0 announcement notes the threshold is a live concern even on current-gen Claude Opus 4.6 removals / softenings in v3.0 • 2023 pause commitment REMOVED (explicit training-pause clause dropped) • quantitative thresholds softened to qualitative judgments • specific mitigations replaced with "affirmative case" framing • independent review kept weak (internal Safety Advisory Group primary) • industry-recommendation tier allows policy-advocacy framing without commitment SaferAI independent rating v2 (2023): 2.2 — moderate v3.0 (2026): 1.9 — weak (joins OpenAI Preparedness and DeepMind FSF in "weak" category) downgrade drivers: qualitative thresholds · pause removal · limited independent oversight policy gets less rigorous while looking more polished; reading closely is the skill.