Side by side comparison of OS X Yosemite And OS X Mavericks Activity Monitor. It’s worth noting that with every Beta release the UI does get tweaked so these won’t be representative of the final versions
If you follow Apple, even in the remotest sense, you might just be chomping at the bit to get your hands on the Beta of OS X Yosemite. Before you take the plunge think hard and fast as not everything will be smooth. Brush up on the meaning of what a Beta is and the potential pitfalls.
OS X Yosemite is the biggest visual overhaul Apple’s made to the Mac in years, but developers at WWDC seemed most excited about one tiny UI tweak – dark mode.