Breaking changes:

Joi.string().email() options changed. The following options are no longer supported:

• checkDNS (remains unsupported)
• errorLevel - unsupported with no replacement. The new validation rules treat quoted-strings, comments, obsolete formats, and domain literals as errors.
• minDomainAtoms - use minDomainSegments.
• tldBlacklist - use tlds.deny instead.
• tldWhitelist - use tlds.allow instead.

Checklist

• Scan you code for any reference to email( and check if options are passed. If they are, convert them to use the new options as described above.
• Ensure you understand that some email addresses considered valid before are no longer valid (specifically those with quoted strings "first last"@example.com and domain literals test@[127.0.0.1]).