<head></head><body>When checking for updates I have noticed in the summary line listing plugins as active or not that a new category has just arrived, it is: "must-use" and in is listed a plugin - WP REST API - OAuth 1.0a Server - Authenticate with your site via OAuth 1.0a Have never seen this before, and when I view the explanation by the REST team I find that it is a plugin to query html - I assume this is for coding purposes, either way it is something I have never used nor do I want to at this stage.Any ideas please? 
</body>