In an interview with Bloomberg, Benoit Coeure, head of the Innovation Center of the Bank for International Settlements (BIS), stated that Bitcoin's constantly fluctuating value prevents it from being considered a currency. Coeure stated that Bitcoin can be an "investment tool", but it has not passed the test of becoming a currency, nor has it passed the test of being a payment tool, simply because its value has changed greatly.
Coeure said that the central bank focuses on providing tools for liquidity and security, which is why we want to study central bank digital currencies. Cryptocurrency has a place in the sun, but it is different. It is not a payment tool.
Ethereum core developer: testnet Rinkeby is about to start the Berlin hard fork
Ethereum core developer Péter Szilágyi said that the testnet Rinkeby will start the Berlin hard fork on March 24. Any nodes that have not been updated will stop syncing because all signers have been updated. Therefore, all nodes that have not been updated will turn red on the statistics page. Since 2/3 have not been upgraded, most of the statistics page will turn red. Before the nodes stop syncing, the last call to update your nodes. As previously reported, test The network Rinkeby will be launched on March 24 (block height 8,290,928).
Ethereum Solidity released version 0.8.3
According to official news, Ethereum Solidity released version 0.8.3. The official said that a bug fix version fixes an important error in how the optimizer handles the Keccak256 opcode. In addition, it also includes two improvements to the optimizer.