Apple’s software guy, Craig Federighi, joked about calling the next version of OS X “Sea Lion” today at WWDC. He said the company didn’t want to delay the release due to a “lack of cat names.”

So instead, Apple is taking a new direction. Cat names are no more. Now OS X will be named after aspects of California, the state where Apple is based.

“We went to our backyard” for OS X 10.9, said Federighi. Enter OS X Mavericks.

Three big features of the new OS X are Finder tabs, system-wide tags, and support for multiple displays with fullscreen apps.

The new logo matches the wave banner we spotted over the weekend at Moscone.

We’ve got a rundown of some of the new features here and there’s plenty on the front page.