With this feature, you can send photos and videos directly to up to 15 friends you follow and those who follow you at once. Take a photo. From the sharing screen, you now have the option to share the photo directly with one of your Instagram connections.You can ignore photos you don't want to receive and you'll never be bothered by that person again. If someone sends you a photo and you don't follow that person, you get a "pending request" and you can decide if you want to accept the photo. You can also have a group conversation around a photo or video. You can also send text messages back and forth about the photo.
According to Instagram Blog, Instagram for iOS version 5.0 is available today for download in Apple’s App Store, and Instagram for Android version 5.0 is available today on Google Play. Instagram for Windows Phone is in beta. Stay tuned for future updates.
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