The April selection of the latest news, tools and materials from the world of Solidity. News — Support of user-defined operators and other improvements. intellij-solidity 2.4.0 — Upload a folder to a Workspace, support of Trust Wallet and other improvements. Remix v0.32 — This release sets Shanghai as the default hardfork used by the Hardhat Network. Hardhat v2.14 truffle and — update Ganache to the most recent version which supports Shanghai and small fixes v5.8.3 v5.8.4 Week in Ethereum News: , , , , April 1 April 8 April 15 April 22 April 29 ERC — An interface for Nestable Non-Fungible Tokens with emphasis on parent token's control over the relationship. ERC-6059: Parent-Governed Nestable Non-Fungible Tokens — An interface for Multi-Asset tokens with context dependent asset type output controlled by owner's preference. ERC-5773: Context-Dependent Multi-Asset Tokens — Allows the requesting of resources from contracts. ERC-5219: Contract Resource Requests — An interface for Composable non-fungible tokens through fixed and slot parts equipping. ERC-6220: Composable NFTs utilizing Equippable Parts Tools — EVM contract size analyzer. See also 0xMob100/sporalyzer Introducing Sporalyzer: A Tool for Analyzing Contract Size — greybox fuzzer for analyzing contracts written in Solidity. See also . Diligence Fuzzing (Re-) Introducing Diligence Fuzzing — library designed to detect hazardous storage writes in Solidity contract. See also zeroknots/slotmachine SlotMachine(tool) & EVM Storage Management — The safelog library provides a foundry/hardhat like console logging interface whereby the individual log functions do not modify the state of memory Foundry Safer Log — Slither detectors to help with code review and audit process Slitherin by Pessimistic.io Articles Fuzz / Invariant Tests | The New Bare Minimum For Smart Contract Security Precision Loss Errors Allbridge Hack Analysis — Improper business logic Sentiment Hack Analysis — Reentrancy Attack MEV Bot hack analysis — MEV Boost Relay Attack 15/04/23 Hundred Finance Hack Post-Mortem Foundry Unit Tests Benchmarking Smart-Contract Fuzzers How to Prepare for a Smart Contract Audit Formal Verification & Symbolic Execution | The Security Silver Bullet? Audits and more Top 7 Smart Contract Auditors by Spearbit Polygon zkEVM Contracts Security Review by OpenZeppelin zkSync Fee Model and Token Bridge Audit by OpenZeppelin zkSync – L1 Diff Audit (February 2023) by Mixbytes Clearpool Security Audit Report by Spearbit Cron Finance Security Review by Spearbit SEAPORT security review by Trail of Bits MYSO Finance Security Assesment by Trail of Bits Balancer v2 Security Assesment by MixBytes CloudWalk Multisig Wallet Audit Report by ConsenSys Diligence EigenLabs — EigenLayer by Trust Satin.Exchange Code4rena reports Golom contest Canto Identity Protocol contest Neo Tokyo contest RabbitHole Quest Protocol contest Wenwin contest Tessera - Versus contest Mute Switch - Versus contest Reserve contest ParaSpace contest Videos ETHGlobal Tokyo — Peter Robinson described what Solidity Inline Assembly and Yul are, when they should be used, and the trade-offs between writing in pure Solidity, using Solidity with inline assembly, writing in Yul, or hand crafting byte code. Solidity Inline Assembly & Yul ERC 1271 & ERC 6492: Signatures for Contract Wallets / Account Abstraction Create a sandwich MEV flashbot: , , part 1 part 2 part 3 Although I'm currently working as a Lead Backend Engineer at Bumble, the content in this digest does not refer to my work or experience at Bumble. If you have any interesting or useful links to share, please contact me on or fill this twitter form ← Solidity digest / mar 2023

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Solidity Digest Monthly / April 2023

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