The Division beta was supposed to start yesterday but due to some unforeseen issues has been slightly delayed and will instead be arriving for the PC on February 19th, one day after the Xbox One version.
Given that the open beta client is rather large in size Ubisoft has opened up The Division to pre-loads today so if you plan to give it a shot during the weekend I'd recommend you download it now before the Uplay servers get absolutely slammed. And if you're interested here's the full list of changes and feature updates that happened between the closed and open beta:
New Mission Available to play, Subway Morgue:
Encounter a new faction: The Cleaners
Explore a Mass Grave while trying to restore power to the city.
Rescue the missing Engineer, Paul Rhodes
Unlock an additional Wing in the Base of Operations:
The first upgrade to the Tech Wing is now available
A new Skill can now be unlocked: The Deployable Turret
Numerous Dark Zone updates and improvements:
New High End weapons available in the Dark Zone
Refresh rate on Dark Zone chests has been greatly reduced
Non-player enemies in the Dark Zone have been significantly increased in number
Non-player enemies in the Dark Zone have been buffed slightly
The Manhunt Timer now pauses instead of refreshing while in combat as a level 5 Rogue
The Reward for surviving as a Rogue Agent has been increased to 1.5x the kill bounty
The Health Bar for Agents in the Dark Zone now only turns red when they actually become Rogue
A new warning icon has been added to indicate an Agent who has shot another player but has not done enough damage to go Rogue
Dark Zone experience leveling curve has been adjusted slightly
Disabled the option to transfer Dark Zone brackets as a Rogue (This prevents players using Bracket Transfer as a means to escape after becoming Rogue)
Removed some ropes that allowed players to reach areas that gave them an unfair advantage
Other changes:
New Ubisoft Club Action available for participating in the Open Beta unlocking an exclusive reward in-game
New and improved Tutorial Video
Tutorial video is now available to view from the Character Select Screen
Fixed two bugs that allowed players to become invisible to other players
Fixed an exploit with Ballistic Shield Skill that allowed players to become invincible
Cheat Detection and Prevention additions and updates
Fixed mismatch of stats that occurred occasionally between Vendor Inventory and Player Inventory when item purchased
Adjusted player movement speed while running with a grenade in hand
Fixed a bug that sometimes caused other player's name and health bar to not be visible in the Dark Zone
Fixed some Weapon Mods that resulted in incorrect stat values when equipped
Fixed some weapons that didn't appear as Contaminated when obtained in the Dark Zone
Fixed a bug with the Reward Claims Vendor that caused stacks of consumables to be decreased under specific circumstances
Fixed a bug with stats display not updating when browsing Vendor Inventories
Fixed a bug that caused continuous vibration under very specific conditions
Fixed a very rare bug that prevented players from being able to fire or switch their weapons
Added mission Dialogue lines in Missing Persons: Heather Lau Side Mission
Several environment fixes to prevent falling through world issues in specific places
Multiple stability fixes (23 unique crashes fixed)
Server optimizations and improvements (players will receive less connection errors now)
Multiple localization fixes and improvements
Additional polish & bug fixes too numerous to mention!
The Division open beta will last from February 19th to February 21st followed shortly by its official March 8th release date. In other words you don't have much time to give it a try but a few days are better than none as far as I'm concerned.