Lots of good features:

http://www.sammobile.com/2013/10/17/samsung-galaxy-s4-lte-gt-i9505-receives-official-android-4-3-update/

• OpenGL 3.0 Support
• GALAXY GEAR Support
• TRIM Support (Makes the device much faster)
• ANT+ Support
• Samsung KNOX Implementation (KNOX bootloader and dedicated application)
• Samsung Wallet comes pre-loaded
• Improved RAM management
• Improved Display colour reproduction (Display looks much sharper than before)
• Improved TouchWiz Launcher (Much less launcher redraws and less lag)
• New Samsung Keyboard
• New Samsung Browser (Full screen by default, new tab interface and more)
• New Reading Mode (Optimises display for reading, used by only a few specific applications)
• New Camera firmware
• Minor UI tweaks (Contacts app, Flashlight Widget, dialog boxes etc)

I’ve been using Fargo as a scratch pad to jot down notes during the day, and after poking around the docs this morning I noticed there’s a feature that lets you send Fargo notes to a WordPress blog.
So I attached Fargo to my blog, clicked on the little WordPress icon and sent a post.
And if you’re reading this, it worked!
Read more about the feature here: http://docs.fargo.io/fargo/usingFargoWithWordpress/