[spdustin]

El Capitan (I think) added a side-by-side snapping that's handy on widescreen devices. Drag a window close to the left edge and wait, and it'll visually indicate that it's ready to snap to the left half of the screen. Do the same on the right. Really handy to do this with, say, Sublime Text (or whatever terminal, something-vim, something-emacs, Atom, VSC, etc.) and a browser.

[TheSpiceIsLife]

Naaah, it's some half-baked full-screen mode with two windows side by side. If you cmd-tab out of either of those apps to a third app you lose visibility of the two full-screen-side-by-side apps a-la Spaces (or whatever it's called this week). Such a let down.

The way Windows 7 does it is about a squillion times better, hold down super and use an arrow key to tell the window to snap to that edge of the screen. Works across multiple monitors too. Use this all the time at work, where I need to use propitiatory Windows-only software.