Support for reading your own PDF or EPUB files. You can upload the files using Google Play web site, and read them on all your devices.
Stability and performance improvements.

Substantial improvements in performance and stability.
In flowing text mode, tap and hold on a place name to see the description and a map of the place.
Added a user guide book in your library with information about app features.
Support for Fixed Layout EPUB books.
Support for Japanese vertical layout flowing text books.

Better support for iOS 6.
Customized layout for iPhone 5 and 5th generation of iPod touch.
Stability improvements.
Improved support for VoiceOver.

Bug fixes.

• Support 2-step verification during login;
• Stream video and audio embedded in books;
• Support original fonts and SVG images;
• New feedback forms with support to request a phone call from Google to help.

• Fixed the issue that 3D page turn is missing in the new iPad
• Fixed the bug with VoiceOver
• Improved the process to communicate to Google about problems with the books or the app

Many new features in flowing text mode, including:
• Bookmark a page by tapping the top right corner
• Touch and hold to select some text
• Highlight selected text with color
• Add a private note to selected text
• Highlighting and notes sync with Google Play web reader and your other iOS devices
• Translate selected text into 50+ languages
• Look up definition of a selected word
• Search for selected text in Wikipedia, with Google or in the book
+1 button lets you tell the world which books you love
View your library as a grid or list on iPhone and iPod touch
Bug fixes

Now integrated with Google Play;
Improved stability.

Bug fixes.

Google Books 1.2.2 is more stable, and opens faster after a one-time database update.

* Faster start-up, especially for users with a lot of downloaded books.
* Improved stability.

Our latest release adds library management, improved book formatting, and accessibility features. It is also faster, and fixes a number of minor bugs.

You can now archive free and paid ebooks and remove samples from your library when you’re done reading them using the new “manage” button.

We have also improved how we display and format ebooks with flowing text.

This update removes the "shop for ebooks" button, and fixes minor bugs in the app. You may continue to purchase Google eBooks by opening your browser and shopping at ebooks.google.com.

New Features:

Read Google eBooks in Landscape mode on your iPad
"Find" feature shows all matches in the book as you scroll down
Tapping “Get eBooks” signs into Google eBookstore with the username used to login into the app
Added a clear no-network error message alert
Removed magnifier

Updated bug fixes:

Overall application speed improved
3-D page turning available on iPad on iOS 4.3
Better Google eBooks downloading experience
Better experience on iPad with 3G but no cellular data plan

Bug fixes.

Bug fixes.

• Added to in-app Help links to main Help page and "Report an issue"
• Bug fixes