lawajava
I've had a different experience trying to move to this update.
 
1. download of the two pieces was smooth and fast.  Hooray!
2. clicked on the installer for the Sound Library Update 3.5.  Install went smoothly, then errored out with this message: "unable to copy Bass Clarinet Stacc Short.st3i"
3. wondered if everything else installed, went to the Install SampleTank installer for 3.5.  It says right away, first install Sound Library update 3.5
4. okay, so maybe my install wasn't ideal, or the unzip.  Repeated the process of downloading.  Exactly the same error: "unable to copy Bass Clarinet Stacc Short.st3i"
 
Bummer.

Have you reported this to support?  I did not get this error updating.  They can be reached at http://www.ikmultimedia.com/contact-support/mi/

Mesh

IK_Multimedia

Mesh
Does anyone know if all the ST2 libraries and synths work in ST3 SE? (I know they work in the full version of ST3, but not sure about SE). I only have ST2 and all its dust collecting libraries.
 
 

Yes, SampleTank 3 SE imports legacy libraries.

Thanks for the confirmation, I appreciate it. Are there any downsides in using ST3SE with my older ST2 synths/libraries?  (I'd hate to buy it and then find some compatibility or other restriction in using the legacy products).
Thanks!!! 
 

The only difference will be in the stock library you would have with SE being smaller than the full version.  You won't lose other functionality.

Think I'll just skip it altogether.  

If I used my jampoints, I can get the SE for under $70.......do I hear $60.......$50....anyone?
 
 
EDIT: I somehow completely missed your post Bit........thanks for the confirmation, I'll see if I can get a good deal at KVR.  

Bit thanks. Next time i come up your way, I will let you know. I can certainly bring the files for you to have. It has been my experience to at least try sounds/effects/presets labeled for specific genres. 

Visting this forum last night after the session reminded me of the update, so I went back to the studio computer and proceeded to do it during the night not to lose any time.
 
Download of ST 3.5 and the library update (around 1.47 GB IIRC) took less than 5 minutes. 
 
No issue whatsoever during installation. The library update even pointed to the correct (custom) folder. No authorization issue.
 
I then launched ST in standalone mode so that it could do its indexing thing, which took a while - I'd say maybe between 10-15 minutes. I do have all the other ST instruments/libraries and a couple of Sonic Reality add-ons, so I guess it's a lot to scan.
 
Haven't tested the new functionalities or the CS. As for the library, I'm using ST very sporadically, only for a couple of patches (electric Basses and, irregularly, a couple of Miroslav patches) so I couldn't tell.

I ran the installer for 3.5 and it hangs at 100% saying it's finalizing the install. Tried it twice - not sure what to do now. I have not installed the library update as I felt I should start with the ST 3.5 update.
 
PS: I have a fast connection, so the downloads were super quick.

IIRC, there are 3 different installs that happen for ST 3.5. ST 3.5, Auth Mgr., Custom shop. I wonder if it is possible that one of the other install windows got buried behind the initial window and you could not see it to finish the other installs?
 
I just spent some time with it on the desk machine and I had forgotten how good/fat it can sound. I actually have a smile on my face right now that I can't wipe off... 

I'll check that out, thanks!
 
I'm glad for the keyboard navigation improvements - I want to use some scripting tools to create Ableton racks...

Just downloaded and installed 3.5; no problems.  Went to the IKM site and found a video highlighting the new features.  Here is a youtube version: https://www.youtube.com/watch?v=qJwBXZfnu1Q#t=157
The second half of the video (at about 2 minutes in) shows the new ST3.5 features; the first half focuses on the new EDM libraries.  
 
So if you want to see what 3.5 offers, or the new 11 libraries, and want to see it before you download, check out the youtube video.  I did not find the new libraries to be something of interest to me (agree with bitflipper about them), but the highlights of the new ST3.5 features are at least informative.