EatTheBlocks Newsletter #23 – Smart contract debugging course, state channel framework

• Debugging smart contracts – New video course on EatTheBlocks Pro. Teach how to console.log in Solidity, how to use Solidity debugger, different kind of runtime errors… I never found any other resources that comes close to this for debugging smart contracts
• Counterfactual development update – new framework for developing Dapps on state channels
• [Explain offline / ease-of-use of CREATE2 ][3]- CREATE2 is a new EVM opcode that will be introduced in Constantinople. This explains how its useful for Dapp developers
• On efficient Ethereum addresses – how you can save gas with addresses containing 0 bytes
• Building Token recommender on Google cloud platform – Tutorial using machine learning, Google cloud machine learning tools and Ethereum dataset in BigQuery.  
• New beta release of Ganache GUI (2.0.0-beta2)
• Introducing 0x Market Maker program – 0x offers up to 15,000 USD for running a market maker
• Running a Parity node in 2019 – All the gotchas when you try to run an Ethereum node with the Parity client. Covers light node, wrap sync and full node sync
• Constantinople upgrade: What you need to know – Major upgrade of constantinople forks explained
• Constantinople enables re-entrancy attack – Constantinople hard fork introduce re-entrancy attack vulnerability because of lower storage gas cost
• What’s new in Eth 2.0 – Regular update about the progress on Eth 2.0 specs

[3]: Explain offline / ease-of-use of CREATE2