website/content/en/docs/reference/command-line-tools-reference/feature-gates/custom-resource-validation-...

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---
title: CustomResourceValidationExpressions
content_type: feature_gate
_build:
list: never
render: false
stages:
- stage: alpha
defaultValue: false
fromVersion: "1.23"
toVersion: "1.24"
- stage: beta
defaultValue: true
fromVersion: "1.25"
toVersion: "1.28"
- stage: stable
defaultValue: true
fromVersion: "1.29"
toVersion: "1.30"
removed: true
---
Enable expression language validation in CRD
which will validate customer resource based on validation rules written in
the `x-kubernetes-validations` extension.