Performance is the main focus on this update, and according to +Virgil Dobjanschi of Google, Google+ will run faster when connected to "less-than-stellar" networks.
Although the big changes in 4.5 revolve around performance, there are a number of small tweaks in the UI. The most noticeable of changes are made to profile pages - everything has been left-aligned, and there are tweaks (animations etc) have been implemented to further align with Google's vision of Material Design.
The search button has been moved from underneath the menu button to inside the drop-down menu, which is definitely more fitting place. +1 and share buttons are now bolder and darker, and the 'Comment' text button now has an icon. Other changes we've noticed is better font rendering which makes text better-looking and actually more readable.
Google+ 4.5 for Android is rolling out on Google Play over the next several days, so don't panic if you're not seeing that update button just yet.
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| The search button has been moved inside the drop-down menu |
Thoughts on 4.5? Anything you want to see changed/improved in the next version?
Source: Virgil Dobjanschi