XF 2.1 When upgraded to 2.1 logo reverted back to xenForo logo

[geeksquad]

How do I edit the main forum logo?

 

[Ozzy47]

To change the logo :

Admin Panel -> Appearance -> Style Properties -> Basic Options -> Logo URL

 

[DragonByte Tech]

To answer the title: This is because you overwrote the default logo in your file system instead of uploading a new image to your file system and using the setting as referenced above to edit the path to the logo.

As a rule: Never overwrite default XF files, as your changes will be removed the next time XF is updated.