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# Security Policy
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## Supported Versions
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The recommendation is to use the latest version available.
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| Version | Supported |
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| ------- | ------------------------------------ |
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| 4.x | :white_check_mark::white_check_mark: |
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| 3.4 | :white_check_mark: |
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| 2.5 | :white_check_mark: |
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| < 2.0 | :x: |
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Note that the Solidity language itself only guarantees security updates for the latest release.
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## Reporting a Vulnerability
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Please report any security issues you find to security@openzeppelin.org.
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Critical bug fixes will be backported to past major releases.
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