EIP-1559 is tentatively scheduled to be deployed to the Ethereum mainnet on July 14

This week’s Technology Weekly contains technical news on the three networks of Ethereum, Polkadot and Cosmos.

Ethereum network

Prysmatic Labs: Prysm v1.3.8-hotfix-6c0942 version has been released

On April 25th, Prysmatic Labs, the execution team of the Ethereum 2.0 client, said on Twitter that Prysm should be updated to version v1.3.8-hotfix-6c0942. This version contains two key fixes to solve the problems that are emerging in the mainnet.

The Prysm defect in the Ethereum 2.0 client caused a total loss of 15 ETH to the beacon chain nodes. An update will be released soon

According to official sources, Prysmatic Labs, the development team of the Ethereum 2.0 client Prysm, disclosed the details of the client’s flaws. They stated that the beacon nodes using Prysm could not generate blocks for 18 epochs (about two hours), but they did not interfere. Under the premise of restoration. The team said that starting from the 32302 era, more than 50% of the blocks suddenly disappeared after being proposed, and then began to suspect that it was a problem with the Prysm client. After several hours of investigation, Prysmatic Labs stated that this is an extremely rare situation. A potential solution has been identified. The total loss caused by this failure is about 15 ETH, and the verifier loses an average of 122,950 Gwei. It is about $0.3, but no verification node has been slashed, nor has it affected the finality of the beacon chain. The team will release an update in a few hours.

Prysmatic Labs: On April 24th, over 50% of the block proposals on the Ethereum mainnet disappeared. A solution has been determined

According to the official Twitter of Prysmatic Labs, the execution team of the Ethereum 2.0 client, on April 24, the Prysm Beacon node was unable to generate blocks within 18 epochs (approximately 2 hours), and starting from block 32302, more than 50% of the area The block proposal suddenly disappeared, and it is suspected that the problem lies in Prysm. Just now, Prysmatic Labs released an event update, saying that this is an extremely rare edge case, and a potential solution has been identified. Some preliminary data shows that the total loss of the accident is about 15 ETH. Due to insufficient block capacity, validators lost an average of 122,950 gwei, equivalent to $0.03. Some key facts: 1. There is no significant reduction of validators; 2. There is no impact on the final determination of the beacon chain; 3. The participation rate is still high (minimum 84.8%); 4. Most of the validators missed 2 or 3 verifications, It has nothing to do with the client type; 5. This is unlikely to be a malicious or purposeful attack. The main network is stable, and it is not necessary or recommended for Prysm operators to take action at this time. Please wait for the release of the fix in the next few hours.

Ethereum core developers: London fork is expected in mid-July, including EIP-1559 and other upgrades

Ethereum core developer Tim Beiko tweeted that the London fork is expected to take place in mid-July, and the fork will include upgrades such as EIP-1559, EIP-3198, and EIP-3238.

EIP-1559 is tentatively scheduled to be deployed on the Ethereum mainnet on July 14

EthHub co-founder Anthony Sassano tweeted: “EIP-1559 is tentatively scheduled to be deployed on the Ethereum mainnet on July 14, 2021.”

Ethereum Solidity released 0.8.4 version, adding custom error function

According to official news, the Ethereum programming language Solidity team released version 0.8.4, adding custom error functions, activating SMTChecker, and fixing errors in SolidityABI decoder V2.

EthHub founder Sassano: Once Ethereum implements EIP-1559, every transaction will burn ETH

On April 22, EthHub co-founder Anthony Sassano tweeted today: “Once EIP-1559 is implemented, every transaction on Ethereum will burn ETH. Every clearing, every ETH transfer, every second The layer proves that every DEX transaction, even every rug pull. No matter what the transaction is, ETH will continue to be burned.”

Polkadot network

Parity launched the Wococo testnet to prepare for the Ethereum bridge test.

Gavin released the list of Kusama parachains online.

Kusama’s 106 referendum has been passed and executed, and Kusama is currently operating the runtime v2030 version.

The Kusama board of directors passed the treasury proposal for the integration of Kusama proposed by CryptoLocally.

There are currently four parachain test networks Statemint, Tick, Trick and Track on Rococo.

The Statemint test chain is running on Rococo.

In order to prepare for Kusama’s parachain, Rococo is currently expanding to a network topology similar to Kusama and equivalent parameters.

Cosmos network

Cosmos Governance Proposal 46 proposes to allow the initial budget to be spent and expand marketing allocation funds

According to official sources. Cosmos initiated Governance Proposal 46, proposing to extend the timeline of Proposal 34 Luna Mission to allow spending the initial budget and allocating existing funds to additional ATOM marketing priorities.