...

1. compact sync old block before fork height. (done)

2. after fork height, sync dag block. (done)

storage

1. Check and initialize the BlockDAG object if the height of the block reaches the predefined one.(done)

flexidag service

1. Define and create Flexidag service instance.(done)

2. Replace the code that uses the Dag object with the one that uses Flexidag service message calls.(doing)