Set BlockMajorVersion 10 upgrade height to 969696 - Add UPGRADE_HEIGHT_V10 = 969696 configuration - Add m_upgradeHeightV10 member to Currency class - Add upgradeHeightV10() builder method - Add BLOCK_MAJOR_VERSION_10 case to upgradeHeight() method - Configure upgrade height in Currency initialization Enhanced privacy (ring size 8) will activate at block height 969696