So... my understanding is that because DDR3 laptop modules are limited to 8GB, we're stuck with a max of 8GB RAM in 13" MBPs and 16GB in 15" MBPs until DDR4 becomes available. Meanwhile, software gets more and more memory-hungry. It's getting to the point where a $2,000 13" laptop simply isn't an option for developing software or doing graphics/video work, and I can't be the only one who's been using 8GB since 2010 and is desperate for an upgrade! But it looks like it could be another year until DDR4 is available for laptops! Has anyone heard anything encouraging about the timeline?