On Wednesday Facebook announced that Facebook iOS SDK 3.8 is now out of beta and available to everyone. This new version of the SDK includes support for iOS 7, Xcode 5, and 64-bit apps.
Facebook also making it easier for your app to handle permission changes. People can use your app from more than one device. They can also revoke or grant permissions to your apps from each of those devices.
Facebook also increased the size of images in link page posts by 4x on mobile and 8x on desktop to help you drive better fan engagement. As part of this change, we’ve also made the aspect ratios for images consistent across mobile and desktop. We recommend the following steps to optimize your images for this new format:
- Use images that are 1200 x 630px or greater for the best display on high-resolution devices. At the minimum you should use images that are 600 x 315px to display link page posts with larger images.
- Use images that have an aspect ratio of 1.91:1. Try to keep your images as close to this aspect ratio as possible to avoid any cropping in News Feed.
- Use the og:image tag to choose the image that you want to share. If you don’t use the og:image tag, users can choose the image they want to post, giving them a chance to select an image that is poor quality.