If your contract passes a
name or version longer than 31 bytes to EIP712, upgrading to 5.7.0 will now revert in the constructor with ShortStrings.StringTooLong.Earlier versions kept a storage fallback for values that didn't fit a
ShortString. That fallback is gone: the domain is stored exclusively in immutables. Cheaper reads and a simpler _domainSeparatorV4(), but a hard failure mode for anyone who leaned on the fallback.Before bumping: audit every
EIP712(name, version) call. Long protocol names or semver strings with build metadata are the usual offenders. If you need a long name, hash it down or shorten before passing.OpenZeppelin Contracts v5.7.0
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