Introducing OpenZeppelin Contracts v5.1

Smart Contract Security Guidelines #4: Strategies for Safer Governance systems

This guide focuses on showcasing battle-tested practices and recommended patterns to implement...

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Smart Contract Security Guidelines #3: The Dangers of Price Oracles

This guide focuses on showcasing the architecture, roles and subtleties of most popular price...

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Protect Your Users With Smart Contract Timelocks

Learn how to use OpenZeppelin’s Defender to set up and deploy timelocks.

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OpenZeppelin Contracts 4.3

This new release includes a modular system of contracts for on-chain governance, based on...

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Introducing OpenZeppelin Governor

Next Generation Smart Contract Governance: We are pleased to announce OpenZeppelin Governor, a...

Announcements Products

Indexing Smart Contracts with OpenZeppelin Subgraphs & The Graph

Creating dense Subgraphs is one of the most important aspects of indexing on-chain information. In...

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How PoolTogether Automates Operations Using OpenZeppelin Defender

PoolTogether is a lossless lottery built with smart contracts using Defender to automate the award...

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Introducing the OpenZeppelin Secure Development Series

Our latest speaker series, Secure Development is aimed to help improve security practices for the...

Security Insights Products

Managing Maintenance Tasks on Chainlink Keepers Using OpenZeppelin Defender

Chainlink’s Keeper Network is a secure way to outsource contract operations to a decentralized...

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OpenZeppelin Contracts 4.2

This release introduces our latest work on governance contracts, gas cost reductions, new helper...

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Deploying More Efficient Upgradeable Contracts

Upgradeable contracts allow us to alter a smart contract to fix a bug, add additional features, or...

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Developers Can Now Register and Manage Chainlink Keeper Jobs with OpenZeppelin Defender

We are excited to announce integrated support for the Chainlink Keepers Open Beta directly within...

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