Only the latest version is currently supported for security updates.
But since this is a mod for Farming Simulator, it's highly unlikely that there will be a security issue with the mod itself.
Farming Simulator security issues are the responsibility of its publisher, GIANTS Software.
If a security problem occurs because of this mod and not because of the game (which is highly unlikely), please:
If a security problem occurs because of the game, please use GIANTS Software issues tool:
But do not expect an answer from them before a very very long time, and if any.