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Security Policy
Bug Bounty
We have a bug bounty program on Immunefi. Please report any security issues you find through the Immunefi dashboard, or reach out to security@openzeppelin.com.
Critical bug fixes will be backported to past major releases.
Supported Versions
The recommendation is to use the latest version available.
| Version | Supported |
|---|---|
| 4.x | ✅✅ |
| 3.4 | ✅ |
| 2.5 | ✅ |
| < 2.0 | ❌ |
Note that the Solidity language itself only guarantees security updates for the latest release.