If you do the update you will have to regenerate your config.yml
BULpearl work now for 1.9 (latest) and 1.16 (latest)
For version 1.9 or higher you can prevent a gamemode creative player who uses an enderpearl from dying
The config.yml file has been greatly changed, all explanatory comments are removed, instead, a "helpme.yml" file has been created with the explanations of each option