We’re doubling down on open source and sunsetting Defender
on July 1, 2026. Read more

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Featured Post

Doubling Down on Open Source Tools and Phasing Out Defender

OpenZeppelin is doubling down on open source development tools by sunsetting Defender and releasing production-ready open source Relayers and Monitor. Discover new features, and our expanded open ...

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Doubling Down on Open Source Tools and Phasing Out Defender
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Doubling Down on Open Source Tools and Phasing Out Defender

Doubling Down on Open Source Tools and Phasing Out Defender

OpenZeppelin is doubling down on open source development tools by sunsetting Defender and releasing...

Announcements Ecosystem

OpenZeppelin Relayers and Monitor are now Open Source

Introducing the alpha release of Open Source Relayers & Monitor for EVM networks, Solana, and...

Announcements Ecosystem

Introducing OpenZeppelin Contracts v5.2 and OpenZeppelin Community Contracts

Contracts v5.2 runs parallel to more experimental development hosted in the community-owned...

Announcements Solidity

Introducing OpenZeppelin Contracts v5.1

OpenZeppelin Contracts v5.1 pushes the boundaries of cryptography, data structures, and utilities...

Announcements Solidity

Announcing the General Availability of OpenZeppelin Defender

After a successful beta phase, we are thrilled to announce the General Availability (GA) release of...

Announcements

Introducing OpenZeppelin Contracts 5.0

OpenZeppelin Contracts 5.0 is the first major release of the Solidity library since 2021, allowing...

Announcing Defender 2.0

OpenZeppelin Defender is a mission-critical developer security platform to code, audit, deploy,...

Announcements
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