The New Nifty 12

Important Notes:

-You may need 8-9 gigs of RAM allocated for this one

-Iron Chests may get removed in favor of Metal Chests in the future, you may want to migrate your chests

-Energetic Sheep may get removed for performance reasons in the near future, I would recommend not relying on it

-Monster Boxes from Quark were disabled for performance reasons, and a Roots update seems to have mucked up pre-existing objects, so there will be some missing items on world load. Those should be fine, but keep an eye out for any Mekanism/Mekanica machines disappearing due to reverting back to Mekanism

I am aware of some performance issues, and may go further in future updates. Right now Energetic Sheep is the top candidate for fps issues, although I'm also keeping an eye on Better with Mods. That's a bigger mod with a less clear effect though, so I'm more reluctant to take that out. In terms of RAM usage/load times, those also seem to be ballooning (even before adding the new mods, just updating old ones), but they will be a bit harder to track down, and I'll try to give warning if I wind up having to remove mods for performance reasons.

Removed:
Modular Item Frame - Causing crashes on server

Replaced:
Mekanica -> Mekanism : They resolved their issues, should be drop in/out

Added:
Respawnable Pets - Pets respawn the next you sleep in a bed if they die
Cosmetic Armor Reworked - Cosmetic armor, for if your real armor is super ugly
Storage Drawers Unlimited - More mod support for storage drawers
Gear Swapper - Swap sets of items/armor quickly
The Flying Things - Adds flying brooms and carpets (find a phial in a chest)
Just Enough Calculation - calculate costs for recipes
Chinese Workshop - some decoration stuff
Charm - Varying things
TipTheScales - more options for GUIScale
MekanismOres - more mod support for Mekanism's ore processing
MetalChests - Alternative to IronChests. You may want to switch over, IronChests may get
removed later
Animal Crops - Grow passive mobs as a crop. A bit silly
PlantTech 2 - more resource plants, with crossbreeding. Hopefully a replacement for the now
pretty defunct Agricraft
Arcane Archives - a magic-themed early-game storage mod
Lag Goggles - lag profiling for performance evaluation
VanillaFix - performance mod
TexFix - performance mod

Updated:

Too many to keep track of, sorry