The demo forum cannot be upgraded at the moment – ST vBulletin 6 Demo Forums
Hello everyone,
We are currently experiencing an issue upgrading this forum beyond version 6.2.3.
Please note that the latest version available in our shop is currently stuck at v6.2.2.
For reference, the issue 6.2.3 upgrade error step1 – vBulletin Community Forum
We apologize for any inconvenience this may cause and appreciate your understanding.