Apple is officially moving to its own silicon chips for some of its Mac hardware. Calling it a "historic day for the Mac," Apple CEO Tim Cook detailed the transitions to PowerPC, Mac OS X, and the move to Intel chips before unveiling its plans to use Apple's own ARM-powered silicon in Macs in the future. It's a big move that means macOS will support native iOS apps and macOS apps side by side on these new machines in the future.
Apple will release the first Mac with Apple silicon at the end of this year, and it expects the transition to take two years. New Intel-powered Macs are still in the pipeline, so Apple isn't moving exclusively to ARM-based Macs just yet. Still, this is a big shift for Apple to move away from Intel-based silicon in Macs.