IPS4 Developer Documentation
Invision Community Blog
Downloads posted by Mark
This script will check if you are ready to use Invision Community 4.x on your own server.
Simply upload the script either to the directory where your current IP.Board 3.x. installation is (if you want to test if you're ready to upgrade) or anywhere else on your server (if you want to test if you can perform a fresh install) and run it in your web browser.
These files are required to use developer mode in IPS Community Suite.