([#123516](https://github.com/kubernetes/kubernetes/pull/123516), [@pohly](https://github.com/pohly))
- Fixed accidental enablement of the new alpha `optionalOldSelf` API field in `CustomResourceDefinition` validation rules, which should only have been allowed to be set when the `CRDValidationRatcheting` feature gate is enabled.
   ([#122329](https://github.com/kubernetes/kubernetes/pull/122329), [@jpbetz](https://github.com/jpbetz))

int
eu.int

// io : http://www.nic.io/rules.htm
// list of other 2nd level tlds ?
io
com.io

// iq : http://www.cmc.iq/english/iq/iqregister1.htm
iq
gov.iq
edu.iq
mil.iq
com.iq
org.iq
net.iq

// ir : http://www.nic.ir/Terms_and_Conditions_ir,_Appendix_1_Domain_Rules
// Also see http://www.nic.ir/Internationalized_Domain_Names