I do not understand this error from Evan Marshall on 2016-02-04 (www-validator@w3.org from February 2016)

From: Evan Marshall <gingaranga@me.com>
Date: Thu, 04 Feb 2016 11:13:24 -0400
To: www-validator@w3.org
Message-id: <9E8D3923-B86D-43E2-AFEE-B8A2E3FFF9E2@me.com>

		HTML WARNING

	The method you used to check this document relies on an obsolete interface that will become permanently unavailable in the near future. The currently-		supported method is to instead use the W3C Nu Html Checker at https://validator.w3.org/nu/. See the documentation on the W3C Nu Html 			Checker's GET interface, POST interface, and the parameters that both interfaces provide, such as the out=json, out=xml, and out=gnu 				parameters/output-formats. 

Does this mean I need to change something in the Doctype?

Received on Friday, 5 February 2016 16:23:34 UTC