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# System prepended metadata

title: Han (weihan) - Update 10

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# Han (weihan) - Update 10

## Summary
I had completed all of the codes for Verkle Tree and starting to work on the EVM layer.

## Development
I've completed the core revive logic and added the necessary unit testings to ensure most cases are covered. I've also started working on the EVM layer which includes hard fork logic, revive gas cost and new transaction type.

Check out my development branch for Verkle Tree [here](https://github.com/weiihann/go-verkle/tree/state-expiry-dev).

Check out my development branch for Geth [here](https://github.com/weiihann/go-ethereum/tree/state-expiry-dev).

## Next week's Action Items
- Complete the development of new transaction type
- Complete the development of hard fork logic
- Complete the development of revive gas cost
- Complete the development of witness format