I do not see the file upload button.

[Md nisar]

I am using Data Center version 8.9.0, but unfortunately, I do not see the file upload button.

Setting page also not contain developer mode enabled  

[Tim Zemlin _TNG_ · Accepted solution]

Hi @Md nisar

with the Confluence 8.8 release this button go deactivated by default (see the release notes). To enable the upload button again, you need to set the system property upm.plugin.upload.enabled to true.

You can follow Atlassians documentation here if you are unsure what to do.

I hope this helps,
Tim