Name of the plugin you want updated: GriefDefender
Spigot Link: https://www.spigotmc.org/resources/griefdefender.68900/
BlackspigotMC Link: https://blackspigot.com/downloads/griefdefender.13247/
Why should we update this plugin: the current version is old and not working on 1.15, 1.15.1, 1.15.2...