dustinxie

### Description of the code refactor ### Why is this needed - [] better/less memory usage - [] reduce running time - [] clean (easy-to-understand) data structure or algorithm -...

### Description of the code refactor ### Why is this needed - [] better/less memory usage - [] reduce running time - [] clean (easy-to-understand) data structure or algorithm -...

move config.DardanellesUpgrade to consensus package

1

### Description of the code refactor as title ### Why is this needed - [] better/less memory usage - [] reduce running time - [] clean (easy-to-understand) data structure or...

### Description of the code refactor it contains `RollDPoS` struct, so need to handle that as well ### Why is this needed - [] better/less memory usage - [] reduce...

Create an IoTeX SDK (by encapsulating p2p+consensus) to allow 3rd party developers easily integrate with IoTeX chain

Prep the iotex-core codebase for possible extension of delegates

Chain ID enforcement - part2

5

1. implement chain ID into antenna SDK 2. make sure crypto dex and important projects adopt new SDK

Intermittent error connecting to bootnode, which is caused by bootnode hitting rate limit in underlying swarm module. Continue to investigate why it is hitting that rate limit

persist staking protocol balance (before Greenland height) to DB in archive mode

3

### What version of iotex-core are you using (`ioctl version`)? latest ### What operating system and processor architecture are you using? don't care ### What did you do? If possible,...

**What would you like to be added**: 1. blockdao is now using v2 file format which stores multiple blocks together (default 16 blocks) 2. leverage this to send 16 blocks...