People on Instagram started to take notice of the change after the app's latest update was made available Monday. Users have been taking to social media to express outrage that they can no longer "catch people Insta stalking," as one Twitter user put it .
Facebook-owned Instagram has for a while given users the ability to see what accounts have viewed their Stories, a feature that some have realized they can use to check if ex-partners or potential love interests are keeping tabs on them.
Stories are only available on Instagram profiles for a 24-hour window after they're posted, but users have been able to preserve their Stories and their respective viewer lists with Instagram's archive feature.
But these viewer lists are now unavailable on archived Stories, and are instead replaced with the message, "Viewer lists aren't available after 24 hours."
This update has also hidden viewer lists for users' Highlights, which are old Stories that people can choose to keep permanently on their profiles.
Instagram did not respond to Business Insider's request for comment on the update.
Here are some of the best reactions from users on Twitter:
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