For the TikTok users, note: 10-minute video uploads are not deleted from the app.

For the last week or so, many users on TikTok have been noticing that the 10-minute recording option is no longer available on the UI.

That's caused many to believe that the company hasn't really succeeded with longer clips and that it has gone back to shorter uploads in a move to refocus on its core strength.

Which might be somewhat true, considering what TikTok has to say on the matter of change:

"We have not removed 10 minute videos - users can still upload videos up to 10 minutes. There was an earlier experiment that allowed select users to also record videos up to 10 minutes from the TikTok app, but that has since ended.

So, TikTok says all that has been depreciated are the options to record 10-minute videos in the camera app interface and that users would still be able to publish videos of any length up to the limit. Nevertheless, recording was only in the test phase, which is why TikTok recently took it away.

This might be an indication of two things-it probably means that 10-minute uploads haven't exactly been the most popular so that TikTok has no reasons to continue supporting this function within the app. That does not mean that no one saw a success with longer content but seems like either that feature wasn't being utilized as much or that people just aren't responding well to longer clips, hence the move by TikTok as it will be removing it directly and within the stream.
It could also indicate that the longer videos that have been uploaded to the app have generally been edited and crafted in other tools, with pro users taking the time to create more engaging, polished clips, that they're then uploading into the app. Which they don’t need the in-app recording functionality for – and really, if you’re uploading longer TikTok clips, you’re probably going to need to edit them and shape them into a compelling narrative, which would make the TikTok camera less necessary in this respect.

So, bottom line, 10-minute uploads still exist on TikTok; you just can't create them in the app. You probably weren't doing it anyway, so probably not a big deal.