Heimdall v0.10.0-beta3 Demands Immediate Polygon Amoy Upgrade

Heimdall v0.10.0-beta3 released for Polygon Amoy network. Ithaca HF activates at block 40,776,000 (2026-07-20 ~14:00 UTC). All node operators must upgrade immediately for compatibility and network safety. Upgrade steps: stop heimdalld, install v0.10.0-beta3 with network amoy and node type, verify version, restart service. Changelog and Docker images linked.