Today Sony Computer Entertainment released PS4 system software update 2.50 code named "Yukimura," and if you're curious on how the new menus and features look like, below you can find a comprehensive guide with screenshots of each.
If you want to read the patch notes, you can find them listed here, and here. There are even a couple changes that Sony did not think to list.
New PlayStation Network icon.
New Power and Power Options Menus
Option to suspend applications in Rest Mode (it's not on by default, you'll have to activate it)
PlayStation Store shifted to the main bar
Back Up and Restore option in Settings -> System menu
Back Up and Restore menu
Accessibility option in Settings menu
Zoom accessibility option(Second image provided by Sony, as it doesn't appear in screenshots)
Invert Colors(Image provided Sony, as it doesn't appear in screenshots)
Larger and Bold Text
High Contrast
Closed Captions menu
Custom Button Assignment menu
Add to Quick Menu option (adds the accessibility options to the PS button)
New Themes option to change the shadow of text for better legibility
Text drop shadow: white, black and standard
New icons for screenshots and video clips in Capture Gallery
Upload to Dailymotion
System Software Automatic Install option
Ability to delete 0% Trophies
New Trophy sort options
Trophy internet search feature
Trophy share feature
Option to Test Connection Speed for Share Play
Discover notification option
Feature to find Facebook friends
Streamlined party creation
"Friends Who Play This" feature
"Now Playing" feature to see what friends are playing
Verified accounts for select developers and industry professionals
This is definitely a quite sizable update, and it's nice to see that Sony is finally delivering features it promised since the debut of the console in 2013. If you're curious on what will come next, I am as well, but as usual your guess is as good as mine.