Flapjack_RL

As Mad said, Ciken ultimately holds the keys when it comes to updating our MC version. Assuming there's no plugin dependency issues, I'd be in favour of updating. There was a potentially really annoying bug with Vane where you could end up perma-locking items in a backpack by putting a pouch/shulker into it, which is now fixed as of this release: https://github.com/oddlama/vane/releases/tag/v1.16.0. Once Ciken is back from his lil' holiday I'll bug him about it In the meantime, if you're annoyed about having to swap versions of MC, I recommend using a multi-instance launcher like https://prismlauncher.org/ or https://multimc.org/. You can then have a setup for 1.21.4, and another setup for 1.21.1 which you just swap between super easily. I use MultiMC for vanilla + Prism for modpacks