OpenZeppelin Forum A place for developers to learn, discuss, and explore design patterns and best practices around Ethereum, Solidity, and smart contract development

Nov 29, 2021 · In the Ethereum smart contract world, every single wei counts! Therefore, it could be very valuable to have a specific list/collection of multiple gas optimisation tricks at hand. And that is …

Jan 20, 2025 · Get to know the OpenZeppelin community and learn about upcoming events.

Oct 6, 2023 · Get the news about releases, content, projects, and events.

Nov 6, 2025 · A place for developers to learn, discuss, and explore design patterns and best practices around Ethereum, Solidity, and smart contract development

Nov 10, 2025 · 🔢 Code to reproduce 💻 Environment Hi, I noticed ReentrancyGuardUpgradeable.sol is no longer available within newer versions of OZ upgradable contracts. What is the alternative to use as …

Mar 19, 2021 · Using multiple signatures to execute sensitive transactions can make permissioned protocols more secure. It also increases their complexity because we now have to secure this extra …

Aug 25, 2021 · Continuing the discussion from Ethernaut category, where @scammi compiled many solutions: Video walk-through: Status - Smart Contract Vulnerabilities: Ethernuats Tim Holmes Mitra - …

Jan 26, 2019 · In this guide you will learn how to create an ERC20 token with a custom supply mechanism. We will showcase two idiomatic ways to use OpenZeppelin for this purpose that you will …

Dec 26, 2019 · OpenZeppelin 컨트랙트에 연결하기 첫번째 튜토리얼에서, 새로운 OpenZeppelin SDK 프로젝트 설정하는 법과, 간단한 컨트랙트를 배포하는 법과, 업그레이드하는 법을 배웠습니다. 이제, …