website/content/en/docs/reference/command-line-tools-reference/feature-gates/relaxed-environment-variable-validation.md

title	content_type	_build	stages
RelaxedEnvironmentVariableValidation	feature_gate	list render never false	stage defaultValue fromVersion toVersion alpha false 1.30 1.31 stage defaultValue fromVersion beta true 1.32

Allow almost all printable ASCII characters in environment variables.