With the WWDC 2017 kicking off this coming June, surely many iOS and macOS users are widely anticipating to see what kind of new features and changes Apple will bring. MacOS Sierra launched in September 2016, however, Apple fans are already looking forward to the next major upgrade to the Mac operating system which is highly expected to be showcased at WWDC in June.

However, it is still uncertain as to what the next version of macOS Sierra will be called, though, in 2014, Apple trademarked a long list of landmark names that could be used for future OS X updates. Interestingly, the names range from well-known beaches to popular cities to notable mountains and deserts. Apple even also included a few names highlighting iconic California animals such as Condor, Redtail, and Grizzly.  According to a source, here's the full list of known trademarked names that Apple might use: Big Sur, Pacific, Diablo, Miramar, Rincon, Redtail, Condor, Monterey, Skyline, Shasta, Mojave, Sequoia, Ventura, and Sonoma, Redwood, Mammoth, California, Grizzly, Farallon, and Tiburon.

This year, Apple is likely to make a host of changes with macOS 10.13.  Apple will see a major design overhaul such as the redesigned iTunes/Apple Music, expanded Dark Mode, multiple docks, synced notifications between macOS and iOS, improved window management, better Spell Check and full-screen options, Password Protect Folders and more.

Apple fans will expect to see a preview of macOS 10.13 at Apple's Worldwide Developers Conference, set to take place on June 5 until June 9 in San Jose, California. The event will take place at the McEnery Convention Center in the city, a deviation from past conferences that have been held at the Moscone Center in San Francisco, California. Furthermore, a public release will likely to come in the fall and a public beta test at some point during the summer.