grunt-contrib-<pluginName> packages are officially supported by Grunt?

I'm about to use the RequireJs plugin for Grunt. I found out that there are two plugins with the same functionality:

• grunt-contrib-requirejs (https://github.com/gruntjs/grunt-contrib-requirejs)
• grunt-requirejs (https://github.com/asciidisco/grunt-requirejs)

I am wondering if -contrib prefixed plugins are the trusted, maintained and officially supported ones by Grunt? Is this a pattern that developers should look for?

Thanks.

Yes, the grunt-contrib-* naming convention is for official grunt plugins. See here: https://github.com/gruntjs/grunt-contrib