1) Fixed a bug where local transaction would be rejected with -32000, future transaction tries to replace pending when send out of order.
2) Add support for encoding uint256.Int in RLP.
3) Fix file permissions on admin_exportChain.
4) Optimize nonce handling performance in the txpool,80% completed.
5) mainnet optimization transaction logic development from the network layer to the transaction layer,75% completed.
6) Research exploring incremental verification and SNARKS without pairings,70% complete.
7) Inter-node communication is done by grpc to reduce the size of transferred data and thus increase the speed of communication, 80% completed.
8) Integrate verkle trees into trie,reduce the cost of data transmission,75% completed.
9) Smart contract data splitting scheme has entered the development stage, through consistency hash plus virtual link points to solve the uneven distribution of data status quo, 70% completed.