Ratatoskr v1.0.3
Mandatory consensus hard fork, activates at block 36,000. Adds IPv6 masternode support and consensus stability improvements. All masternodes and miners MUST upgrade before block 36,000. Verify: check SHA256 against SHA256SUMS, and verify SHA256SUMS.asc with release key 50B8E0E4EADA2FF29B1DE68F7A33CFF563BB2E0A.