Mine failed to install the first couple of times I tried.
Put finally got all 3 pieces installed.
 
Some layout differences
- Library 'bars' are now thinner (at least I seem to remember them having a little more height per bar)
- Top top control bar reorganized.  For example QuickLoad icon is gone.
Seems to be working OK, loaded fine in one of my old projects.

TheSteven
- Top top control bar reorganized.  For example QuickLoad icon is gone.

My most clicked item, how do you call up QuickLoad now?

This update seems to be for people with 13" laptops - because the updated GUI was great on mine! On the desktop ot was ok to me. Different but nothing special. Things loads a bit faster, which is always great.
 
Installed perfectly in OSX BTW

John  Thank You! for the link. I downloaded the 5.6 update and re-installed it from that and now everything works, my vst's are back. I also downloaded a previous version to keep just in case.

QuickLoad is now available from a menu at the top. It is also my most used feature.

Glyn Barnes

TheSteven
- Top top control bar reorganized.  For example QuickLoad icon is gone.

My most clicked item, how do you call up QuickLoad now?

 Two ways in Kontakt 5.6 to call up QuickLoad

So, 5.6 is ok to install/update?

NI Service Center has been telling me I have a pending update to the Kontakt 4 factory library for the last two years. The message persists even though I've installed the update at least 4 times on two different computers. I wonder how it determines whether or not the update has been installed, given that these are just wave files with no version numbers.

bitflipper
NI Service Center has been telling me I have a pending update to the Kontakt 4 factory library for the last two years. The message persists even though I've installed the update at least 4 times on two different computers. I wonder how it determines whether or not the update has been installed, given that these are just wave files with no version numbers.

I've had the same issues with Service Center for years. I have to be careful when using it as there are several OLD updates available that never left after DL. I still don't have the confidence to try this DL New System yet...

bitflipper
NI Service Center has been telling me I have a pending update to the Kontakt 4 factory library for the last two years. The message persists even though I've installed the update at least 4 times on two different computers. I wonder how it determines whether or not the update has been installed, given that these are just wave files with no version numbers.

I had the same issue with Service Center with EWQL Silver.  It kept telling me that the update
to 1.08 was available, even though I had installed it.  I even reinstalled it several times to 
see if would just go away...no luck...

Now it doesn't even show up in Native Access...

Amazingly, as old as it is, it STILL works just fine...