H1Z1 servers will come down at 12:00PM Pacific for roughly 2 hours.
 
Patch Notes:

• Battle Royale: Pressing “M” brings up a map
  
• Fixed a few client crash cases
  
• Adjusted zombie behavior from airdrops
  
• Loot spawn adjustments
  
• The satchel has a new model and icon
  
• IEDs and Punji Sticks will no longer damage players on PvE servers
  
• Gameplay tips have been added to the death screen message.
  
• Battle Royale: Made some improvements to the gas visuals and movement
  
• Battle Royale: Fixed an issue where players would start in green gas
  
• The makeshift bow now has a unique model.
  
• Modified campfires, BBQ, and furnace so that they should perform better under heavy load.
  
• The wrench now has a wrench model
  
• The repair hammer and repair wrench now repair structures or vehicles on each combo swing instead of the just the first one.
  
• The starter belt pouch now has a 2 second shred timer (it was instant before).
  
• Furnaces now take damage/decay and can be repaired with hammers.
  
• Increased server stability.
  

Servers will be down starting at 2:30PST for approximately 2 hours.
 
Patch Notes:

• More loot spawning adjustments
  
• More sorting options are available on the server select screen
  
• Fixed issue where you were unable to go back to the server list after deleting the only character on a server
  
• Loot bags dropped from players and zombies have been increased in size, making them easier to see
  
• Battle Royale: Trees, bushes, and plants can now be interacted with in Battle Royale
  
• Battle Royale: There is now a "Play Battle Royale" button in server select screen
  

Servers will be coming down at 1:00AM Pacific and will remain down for approximately 90 minutes.
 
Patch Notes:

• Fixed an issue with loot which was preventing re-spawning of some items.
  
• Battle Royale: Fixed some issues which were causing problems when a match would complete
  
• Additional general server stability adjustments
  

The servers will be coming down at 3:45 PST for approximately 2 hours.

• Revised loot spawn rules
  
• Your nameplate will not display while prone.
  
• Fixed Metal Doors to open/close/lock/unlock properly.
  
• Punji stick traps, dew collectors, and rabbit traps will now slowly decay over time. They can be repaired with a hammer.
  
• Punji sticks have lower health and should be a little easier to remove.
  
• Spool of twine now has a unique icon.
  
• The arrow recipe now produces one arrow instead of two.
  
• Increased placed barricade resistance to damage.
  
• Slightly raised the chance to harvest usable cloth from dead zombies.
  
• Metal pipes, metal sheets, and hunting rifles can be melted down in furnaces for metal bars.
  
• There were two Calamity (EU) servers. One has been renamed to Collapse (EU). Please check the green character indicator on the far left of server select to see if which server your character is on.
  
• The ground tamper item has been disabled and the recipe to make it is no longer discoverable
  
• Improved Vehicle Survivability
  
• Rotten food has been removed from the fridge spawners
  

The update includes the following fixes:
•Fixed issue with loot rules which were preventing spawning items inside containers
•Metal Gate should now work properly
•Floating Arrows should no longer cause damage or obstruct vehicles.
•Structures are now more resistant to damage
•Zombies should no longer slide or attack while knocked down
•Dragging a stack of items that was too large to fit in your inventory would not move any of the stack. It now tops off as much as it can fit
•Fixed issue where the inventory wouldn't accept the maximum it could hold when picking up items from proximity/containers.
•The dew collector should work now, seriously
•Adjusted many items so that they will stack in the inventory properly
•Added a recipe for a Metal Door that is more durable than a wooden door
•Additional server list sorting options are now available
•The inventory option "Delete" has been removed
•“Drop”, “Unload” and “Place” inventory options have been removed from proximity items
•Rebalanced melee damage, including fists
•Enabled melee headshot damage for NPC's and players Have feedback on the new melee changes? Post them in Jimmy's thread here
•Fixed issue with the Runamok Toxic Cavern container not working
•Stagnant water can now be purified in barbecue.
•Bear meat can now be cooked on a barbecue.
•Rabbit stew can now be cooked. It now requires cooked rabbit meat instead of raw rabbit meat.
•Hammers, wrenches, and combat knives can now be melted down into bars inside of a furnace.
•Some larger items like the machete and AR15 now yield more metal bars when melted in a furnace.
•Animal traps now take damage.
•The animal trap recipe now require four nails.
•Fixed picking overlapping blackberry bushes where players sometimes had crouch to pick them successfully
•Fixed event tickets so that tickets found in the world are granted and the name and count show up properly

This game update will take place at 6:30pm PST and have an approximately 90 minute downtime.

• Changes to loot and item spawn/respawn
  
• Hunger and thirst vitals have been decelerated. You don't get hungry and Thirsty as fast now!
  
• Dew collectors and rabbit traps should function on live properly now
  
• Battle Royale: Some loot items we're blocked from being collected. This has been corrected.
  
• Battle Royale: Some messages were being spammed excessively. This has been corrected.
  
• Battle Royale: The contents of airdrops have been fixed and now have the appropriate BR style loot
  
• Battle Royale: Fixed an issue with the mysterious "crafting ingredient" bag appearing when a player dies
  
• Adjusted some foraging rules
  
• The houses in Lone Pine Development have had their placements corrected
  
• Fixed some areas where players were getting stuck (hardware store, shelves, etc)
  

We are taking the servers offline for approximately 2 hours to improve server stability. We also have a live update coming later in the day and we will have a full list of updates and improvements.

The remaining live servers are now coming offline for updates and stability improvements. Estimated time to come back up will be 4:30PM PST or before. We will notify you the moment they come back online.

Source