Thanks a lot for your feedback, I'm happy to hear you like the update
Merry Christmas to you, too 
1. When the crossbow is not loaded, and then unequipping the item, it will cause your character doing the reload animation without the bow in your hands
This was actually intended, but I agree that it would be indeed better to change that... it's on my to-do list 
2.When someone is reloading the crossbow, other players see the bolt you are reloading flying behind that player and when the reloading is done it is gone...
Thanks for letting me know! I will put that on my to-do list 
3.For some reason, after this update, looking at water drops my fps very much..
Hmm... nothing has changed about the water... but you could try this: open the config.properties file in the game directory and add this line at the bottom (if it does not yet exist):
Graphic_WaterMaterialQuality=0
Then save the file and restart the game. Does that make a difference?
4. after this updae, snow drops my fps very much, In a blizzard my fps litterly dropped to 6 fps... LOL
There was indeed a minor change to the snow effect which seems to have a considerable impact on performance, at least on some GPUs... I will fix that with the next hotfix!
5.when wearing some of the new clothes, the arms in first person dont wear the clothes, so you cant like see the clothes on your arms in first person, I dont know if this is a bug, but the other clothes have the clothes on your arms
Oh, thanks for letting me know! I will fix that with the next hotfix! 
1. One handed axes, I asked this a lot because I rally want it lol
You mean battle axes, right? More melee weapons (including axes) are definitely planned and probably they will be added with one of the next updates^^
2. buff the bandits, bandit deal almost no damage and even whn wearing samurai armor the deal no damage. bandits really need to be buffed lol.
I will change that with the next update (but probably it will require more tweaks) 
I see too FPS drop. For example when night is skipped (hour 0 become 6 am) a few minutes i encounter huge FPS loss (half of FPS) for several minutes. After some time FPS start to rise. Same settings as before update and play on a server.
Hmm... does it only happen after skipping a night? Can you also reproduce this issue in singleplayer (when skipping the night, for example, or when changing the weather)?