The plugin supports all the versions starting with 1.13 up to 1.18.2. If you still need support for the versions below 1.13 you can use the version 1.8 of the plugin.

• Fixed a very important bug reported by LegendDoubleB where the the fuel types will not smelt all items if the number of items is equal to the number of operations.
• Also now wet sponges gives 1 water bucket when is done smelting just like the normal furnace, you must place a empty bucket in the fuel slot.

• The menus are configurable now, you can change them as you wish, you can find their configs in a new folder called "menus".

• Fixed the java.io.IOException error when the plugin starts for the first time.
• Now the fuel types added since 1.13 can be used, example: dried kelp block, loom, barrel etc.
• Changed the %COOKTIME% AND %BURNTIME% variables, now they are showing the remaining time in minutes and seconds, example: https://gyazo.com/8079cde943fb139e4ef413b0910ed8f6
• Also the %COOKTIMETOTAL% variable was changed now it's showing the remaing time till all the items are done smelting.
• Added 1 new variable as suggested by LegendDoubleB, %PROGRESSTOTAL% it's showing the progress of the items that are smelting.
• Added 1 new setting in the config where you can disable the message send by the console when the plugin it's done saving the data. https://gyazo.com/9b039ff3715c07962629ca43aec4bf7b

• Added the ability to make custom recipes or edit the default ones in the recipes.yml config.

• The plugin have been recoded, the menu have been changed, config have been changed also it's not combatible with the older versions.

• Fixed the NullPoinerException when using the /pf open command.
• Now you must empty the furnace before you can use the /pf delete command.
• I changed the aspect of the menus as suggested by sioncrew.

Fixed the java.lang.UnsupportedOperationException error when you try to delete the furnace after you create it for the first time.

• Fixed a very import bug reported by sioncrew where you could dupe the items placed in the result slot, thanks alot for reporting and helping me fix the bug.
• Also i added a new menu where you can choose the furnace you wish to open also it's showing the status of the furnace.