Tumblr has returned to the App Store after being removed for graphic content on its platform.

Veteran Tumblr users will notice a somewhat cleaner version of the app now that the company has removed pornographic content from the platform after discovering photos of child sexual abuse.

Some Tumblr artists and sex workers have criticized the platform for removing their content, as it served as one of the few places where they could post freely.

After being MIA for 10 days, Tumblr returned with new Community Guidelines prohibiting hate speech, harm to minors, and adult content. The app now has an algorithm that automatically removes porn and other adult content, but the company still has few wrinkles it has to iron out as the algorithm sometimes reports images that aren’t sexual at all.

These changes will go into effect December 17.