Amazon’s Kindle app and Kobo’s namesake app for iOS were both updated last month. And if you’ve been wondering when the other popular third-party iOS app would be updated, wonder no more. Just a few hours ago, Barnes & Noble’s Nook app for iOS has also received a significant update.

Much like Kobo, Nook for iOS now supports sideloading of ePubs and PDFs. Presumably, ePubs and PDFs may only be sideloaded onto the app if they’re either DRM-free or protected with Adobe DRM.

In addition, Nook for iOS now supports PagePerfect on iPhone 4/4S and iPad. PagePerfect, in case you don’t know, is just Barnes & Noble’s fancy way of referring to its enhanced e-book, magazine-like format.

The latest update to the app also brings improved font and margin sizes to further facilitate convenient reading. And to enable easier word lookup, the app now comes with a full dictionary, powered by the 11th edition of Merriam-Webster’s Collegiate Dictionary.

Nook

The app also introduces a new “Everything Else” filter for the library. This filter displays only the items in your library whose content types are not supported on your device, including magazines and children’s books.

Several bug fixes, including a fix for issues with pre-ordering, are also applied to the new version of the app.

The newly updated Nook for iOS is available now in the App Store for free.

Barnes & Noble recommends syncing your library before updating the app. But as pointed out by some user reviews for the new version of Nook for iOS, doing so has still led to loss of books after updating.

Let’s hope Barnes & Noble comes up with a definitive solution to this problem soon, lest more “Harry Potter” Nook books be magicked out of users’ libraries.