The new feature lets you focus on the face of the person or object being clicked and softly blurs the background. The objective of the Portrait Mode feature is to apply a bokeh effect to photos - blurring the background while keeping the subject into focus.
For using this new feature, the user needs to go to the story section on their profile and swipe towards the left to right.
The good part about the feature, is that it works with both the front and rear cameras, so you can take a portrait selfie or take a picture of your friend or family.
The company is also introducing Mentions stickers to allow users to tag friends in Stories. The Nametags feature was first unearthed by TechCrunch in its Android APK and now users are posting screenshots with the details of the feature. "You'll soon be able to download a copy of what you've shared on Instagram, including your photos, videos and messages".
I was playing around with the setting this morning - don't worry you wont be subjected to the selfies - and I'm not sure I enjoy the focus filter all that much.
The new feature will come with the newest updated version of the app. Initially they refused to do so, but after more discussions, Zuckerberg convinced them and the Instagram Stories features was rolled out in 2016. The new feature will allow users to shoot portrait photos along with the bokeh effect. Once you see a good looking object, tap on the Shutter button.