Week in Ethereum News
November 6, 2021

Eth News and Links

Mainnet execution layer


  • EIP4399: Supplant DIFFICULTY opcode with RANDOM

Proof of Stake consensus layer


This newsletter is made possible thanks to NEAR & Aurora!

Aurora Chainlink Hackathon

Chainlink Fall 2021 Hackathon is taking place on October 22 – November 28. Join smart contract developers to reinvent applications in various industries in this biggest Chainlink hackathon so far.

Aurora is providing $25,000 to the Chainlink Fall 2021 Hackathon.

Participate in one of Aurora’s challenges, contribute to the growth of the NFT movement, and win up to $10,000!

Create a contract that allows moving NFTs back and forth between NEAR and Aurora.

Create a connector that allows moving native NEAR NFTs back and forth from NEAR to Ethereum using Aurora’s Rainbow Bridge.

Develop with Aurora and Chainlink to spur a major surge of innovation across the NFT economy, and the larger smart contract ecosystem.

Details: chainlink-fall-hackathon-2021.devpost.com

Stuff for developers


  • Fuse community pool drained after VUSD price manipulated on Uniswap v3, TWAPs can be subject to manipulation
  • Solidity not affected by Trojan Source, Solidity Underhanded Contest 2020 winner exploited Unicode direction markers & was fixed in v0.7.6
  • Tincho’s Damn Vulnerable DeFi v2: Solidity v0.8, four new levels, new (broken) integrations and Hardhat + Ethers tests


  • Ethereum Foundation Q2 grantees, $8m in grants 
  • Devcon Archive v2: improved UX & content discovery, more content on IPFS and community curated playlists
  • Optimism’s $1m retroactive public goods funding recipients
  • Padawan DAO: funding scholarships for highschool and university students to attend their first crypto conferences


Application layer

Job Listings

Reach people experienced with Ethereum.  $420 for two issues (~75 character limit), payable in ETH/DAI/USDC to abcoathup.eth.  Questions? abcoathup at-gmail



Follow @WeekinEthNews to find out what the most clicked links are. Follow @evan_van_ness and @abcoathup to get most of the week’s news in real time.

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Dates of Note

Upcoming dates of note (new/changes in bold):

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