Since this plugin was not on Spigot until recently, I couldn't publish all the versions and changelogs, here's some of them:

New:
• You can now add custom names and lore to items spawned by item spawners.
• Added custom loottables to the plugin! You can now edit what every mob can drop, drop chances, drop amounts and XP!
• Added a new module called permission-based-xp, which allows you to add permission checks for retrieving XP from the spawner.
• Added an option to config.yml called "spawner-level-limit" which allows you to set a level cap for a spawner.
• Shift + breaking now instantly reduces the spawner's level to 1 instead of removing a single level.

Bugfixes:
• Fixed a duping bug, allowing players to level up the spawner without losing any spawners.
• Fixed an issue with shift + breaking levelled up spawners.
• Fixed a bug where an error got sent to the console when a player (not the owner) right clicked a spawner.
• Fixed a "friend module" bug which sent errors to the console.
• Fixed a bug related to XP dropping when using custom loottables.
• Fixed a bug where item spawners spawned the wrong amount when storage function was disabled.