Oh, here is a complete list of changes (it is a LOT):
T3 BC's
New Background Images in space
Engine trail effects back
New texture/shader engine for ships
Time Dilation (as systems get congested, time slows down to allow fleets to warp/jump into system without being picked off 1 by 1 as the server processes the requests)
New captain's quarters updates (based on station faction owner)
New/different T2 module blueprint drops from exploration sites
Lots of exploration site/complex/anomaly changes (increased loot/bounties/salvage)
Hybrid weapon rebalancing (less cpu, more tracking, less power, less cap, increased tracking (on some), increased damage (on some))
T2 ammo rebalanced (javelin (no cap penalty), javelin, quake, gleam (no tracking penalty, now a 25% tracking bonus), hail (no falloff penalty)
Some type of rebalancing of logi ships (no real details, just "bring them in line with other T2 ships)
Rebalanced destroyers (no real details other than "Your oversized Noctis will be commanding a bit more respect")
PI changes: 5x more bandwidth for links, Custom offices in w-space/null/low-sec can be destroyed and replaced by corporation owned stations with adjustable taxes (with custom tax rates based on standings with player/corp/alliance), increased size of storage at customs station, and tweaked UI interface at station
UI changes: "loot all" added, a "jump" navigation (like "dock" but for wormholes, bridges, gates), "scoop to cargo/drone bay" now will move your ship into position as well
Drones will attempt to return if you warp off (i.e. they will automatically receive the "return to bay" command when you perform the warp command, but that doesn't mean they will return in time, but it they are simply orbiting or close by, they might)
Session timers reduced by 10 seconds
POS fuel changed to "fuel blocks" 1 block hour for small, 2 for medium, 4 for large. Fuel bays changed slightly so that all normal towers have approx 29 day fuel (faction towers get bonus on fuel bay size, but lose previous bonus on consumption rate). Power/cpu no longer affects fuel consumption rates. Timers for setup/takedown of POS have been tweaked.
Implants will now show in pod killmails
Blueprint type (original/copy) will show in killmails
Fitting limit raised to 100
Setting orbit range now on a per ship type basis (instead of per character)
New fonts for chat/context windows
Doomsday/cyno visual effects changed
Cap ship rebalancing
New DED complexes
Updates to tactical view (bomb range/explosion size will show, missile range will show)
Fitting window finally show DPS (including drones), CPU/powergrid will now show how much you have remaining
As well as some other tweaks...
Basically, finally giving players some of what they want as opposed to the last few updates. Now if they would just give POS access/storage permissions some love.....