ARCH — Release history
Release history: v1.0.0 (Dec 2025 stack+CLI), v2.0.0 (Jan 2026 canonical experiment), v2.3.0 (Feb 2026 preliminary sweep), v2.4.0 (Feb 2026 +6 CLI commands), v3.0.0 (Mar 2026 Community v1), v3.1.0 (Apr 2026 docs A-G), v4.0.0 (final, D23-D26 fix + the project documentation).
Source: PUMA project documentation · Traceability: corpus unit
ANXHN-027· Confidence: verified-at-primary-source