CloudFront > Enums > HttpVersion HttpVersion¶ Enum Class¶ HttpVersion ¶ Bases: UnknownEnumMixin, StrEnum Attributes¶ HTTP1_1 class-attribute instance-attribute ¶ HTTP1_1 = 'http1.1' HTTP2 class-attribute instance-attribute ¶ HTTP2 = 'http2' HTTP2AND3 class-attribute instance-attribute ¶ HTTP2AND3 = 'http2and3' HTTP3 class-attribute instance-attribute ¶ HTTP3 = 'http3'