Reels also will get two new effects for social videos.
The testing phase continues for Collabs, but its now seeing a wider rollout.
Instagram has yet to say when the feature officially will release on the mobile app.
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The web version of Instagram now will enable users to create posts.
The previous version only allowed people to scroll through feeds, check their messages, and reply to them.
The company has yet to indicate whether the desktop version will support long-form video posting on Instagram Video.
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