There are two main versions of the PocketMine server. These are PM5 and PM4, respectively for 5.x and 4.x versions.
Update your PocketMine server
In order to update your PocketMine server, you need to reinstall your server. But deleting a simple folder may be required in order to make it work :
- Navigate to your server "Manage" page and click "Stop" to stop your server.
- Navigate to your server "Files" page.
- Here, you should find a "bin" folder. Select this folder and delete it.
- Once done, come back to the "Manage" page and click "Reinstall".
You can watch the update progress in the "Console" page. Once done, you should be able to join your freshly updated server.