As announced, Ethereum is expected to be its upgraded version Eth2.0 probably from 2020. There will be several upgrades like

  • PoW to PoS/Casper FFG
  • eWasm integration
  • sharding (Casper CBC)

These changes are gonna be implemented gradually. So, Are there any recommended preparation for the coming upgrade?


There is nothing to worry just yet.

The casper protocol won't effect any smart contract much, it is just a new consensus protocol. I think the only thing that will effect is that they will use RANDAO which is a truly random function for blockchain.

For eWASM it is still in research state there isn't a complete product anywhere yet so ALL HAIL vyper and solidity

Sharding will effect in ethereum in many ways. The smart contract will have to upgrade to adopt it because user will change from one chain to another chain. This is a problem that is still in research, because you will have to think about backward compatibility.

So in short eth 2.0 is still young. You can think it is like Brexit, they said many times that they will leave EU but i doubt they will


Most likely most of the current functionality will work just fine. It would be strange if it wasn't (at least mostly) backwards compatible.

Here are a few notes about the changes for devs: https://twitter.com/VitalikButerin/status/1167510279736967168 - the only remarkable thing I see is the uncertainty about how selfdestruct will work. The other remarkable change is the move to eWasm - you probably won't be using Solidity anymore after that.

I'm not sure if there are any definite answers for this as the specifications are not really clear for anyone at this point. So probably you should not worry too much about the upgrade yet.

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