This updates the core blockchain code to handle Xaya's modified chain structure. It consists of two main changes: The first is supporting Xaya's PoW data (triple-purpose mining). The second is support for Xaya's continuous difficulty retargeting with dual-algo, which among other things requires storing more data on disk because the difficulty is no longer constant over each "chunk" of headers.
This updates the core blockchain code to handle Xaya's modified chain structure. It consists of two main changes: The first is supporting Xaya's PoW data (triple-purpose mining). The second is support for Xaya's continuous difficulty retargeting with dual-algo, which among other things requires storing more data on disk because the difficulty is no longer constant over each "chunk" of headers.