Ethereum has made post‑quantum cryptography a strategic priority with a dedicated PQ team and $1M in rewards, but hash‑based signatures are about 40x larger and could cut throughput and raise fees.
Polygon (MATIC) activated the Madhugiri hardfork on Dec. 9, 2025, introducing protocol-level optimizations that boost transaction speed and overall throughput. The upgrade is aimed at improving scalability and strengthening Polygon's appeal for enterprise-grade blockchain deployments.