v1.5.3 Upgrade to full Proof of Stake

Transition to full Proof of Stake, v1.5.3 - interoperable with 1.5.1

1.4.3

Set minimum protocol version to reject older wallets, and added a checkpoint.

1.4.1

Balanced pow & pos mining rewards

Release 1.3.7

Prevent chained transactions from being taken from txpool. The second transaction will be delayed.

1.3.6

Patched bug preventing resyncs from getting pasts block 610781, clients using the bootstrap provided were unaffected