This version contains a few important sigchain related consensus upgrades that will greatly increase network security:
- Introduce sighash left shift mechanism
- Implement sighash left shift for sigchain with skipped hops
- Implement sighash left shift for sigchain with recent miners
The new mechanism will be enabled at block height 2,633,000. Please make sure all nodes upgrade before this height.
In addition, a few improvements and bug fixes are included in this version:
- Reduce the log level of some common message
- Fix the bug that node with certain local ledger cannot join the network
- Prevent nknc from creating empty log file on each start