![49e-top_01.jpg](https://cdn.steemitimages.com/DQmc49c8wF3c9YBZ4XZAtjri5piGfy5ehy2FudSgWb4cv3o/49e-top_01.jpg)
# DEVELOPMENT # 
## Main Chain ## 
**[Done] Fix and optimization** 

* Fix derivation in macro, compile much more quickly
* Optimize EVM stack implementation
* Add in memory caffeine cache
* Make chainId mandatory

**[Done] Wallet app**

* Transaction record page and click transfer procedure optimization
* Loading optimization of wallet create, import and delete
* Modify ETH test network transaction monitoring system

**[Work in Progress] evm** 

* Add Byzantium hard fork
* Add Constantinople hard fork
* Merge eips to hard forks and remove useless config

## Light Node ## 
Gizwits GoKit4 development suite

* [Done] Software code framework (GPS signal acquisition + external temperature and humidity acquisition + TCP/IP transmission)
* [Done] Connection between device and server
* [Work in Progress] Module coding and testing (LED screen, photosensitive, upgraded external temperature and humidity sensor, IoT transmission protocol)
* [Work in Progress] Coordination with Gizwits platform

# MARKETING # 

![49e_03.jpg](https://cdn.steemitimages.com/DQmUG89GpEnoHgvqn2y2gBPVHmZR9q34Q7Z4Hi2Dgc8d7vk/49e_03.jpg)
Number of token holders | 19,281 | -0.37%
------------ | ------------- | ----------------
Number of transactions | 60,918 | +0.88%
(Data source: Etherscan.io)

# COMMUNITY # 
![49e_04.jpg](https://cdn.steemitimages.com/DQmVd74rFzaoQxgrY2MkLyzEMB1DuDt1K9aXwfpaGku98g7/49e_04.jpg)
Chinese community  | Number | %
------------ | ---------- | ----------
WeChat & QQ | 6,740| -0.77%

Overseas community | Number | %
------------ | ---------- | ----------
Telegram | 52,511 | -2.13%
Reddit | 9,114 | 0.24%
Twitter | 19,291 | -0.46%

# COMMUNITY ACTIVITY # 
Find bugs in the ITC Wallet application in order to win ITC tokens

IoT Chain community will be rewarded for helping to find bugs in the wallet; each valid submission is worth between 5–20 ITC tokens!