There are the “stock themes” with the year written out, like Twenty Fifteen that come with every install. And for some, that’s just fine.

There are also a ton of themes by others, some free and lots of premium ones- that all run the risks of not being 100% compliant.

That’s why the Automattic offerings are nice- guaranteed to have all the functionality and support, and free. All are responsive.

The new ones:

• Cerauno is a polished, user-friendly magazine theme with plenty of customizable features. Add secondary content in up to five widget areas, brand your content with a Site Logo or Custom Header, and add Featured Images to grab your readers’ attention.
• Canard: a flexible and versatile theme perfect for magazines, news sites, and blogs. It lets you highlight specific articles on the homepage and balances readability with a powerful use of photography — all in a layout that works on any device.
• Argent is a clean and modern portfolio theme, geared towards creative professionals like designers, artists, and photographers. With its simple homepage template featuring portfolio projects, Argent aims to draw viewers right at what matters most: your wonderful work.

And we didn’t include screen shots- because you really should go check them out on the demo pages.

Most of these are to feed the ever growing WordPress.com but, with a proper child theme and a little customization, you’ll be rocking a very solid theme at the ultimate best price- FREE.