MyBB Community Forums

i use the final version of mybb but i don't know anything about plugin, where to upload it to my forum?
there is only 

• Plugins
  
  
• Plugin Updates
  
  
• Browse Plugins
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
• thank you

Its descriped in our documentation:
https://docs.mybb.com/1.8/administration/plugins/

But basicly, all plugin developers write here installation notes and steps do be done.
Most Plugins you can find here:
https://community.mybb.com/mods.php