Yes it does. LIO batteries are very different than the old NMH batteries used in older laptops and phones. Then Gen3 LIO are even different than Gen1/2 in that they take a few cycles of charge/discharge to reach peek capacity. And unlike NCD or NMH batteries, you do not want to drain them below 7%. Nokia phones that use LIO will in fact cut you off at about 10% to prevent battery damage.

As for those worried about charging at night and waking up with only 90% battery, this is common and has happened on every phone you've owned. Look at the battery indicator in the status bar and you'll see it shows "full" until about 80%, just like your other phones did. The difference is that now you can run an app that talks directly to the battery to see what's really happening. You just didn't know it was happening before, ignorance is bliss.

If you really want 100% charge in the morning, use the simple low-tech approach that I've used for years: Hook your charger to controlled switch (or a timer) and have it turn on a couple hours before you wake up. That way it's just finishing charging as you wake up! No charge/drain/charge cycles, and you get a full days power. Just don't blame me if you wake up at 5am to your phone beeping about low battery.