Blizzard has just launched the 4.0.1 Public Test Realms! This patch will introduce the new streaming client, class & talent changes, stat changes and much more. What this patch doesn’t contain is all the Cataclysm zone changes and Archaeology.
You can read the patch notes after the break!

Blizzard said:

World of Warcraft PTR Patch 4.0.1

The latest patch notes can always be found at http://www.worldofwarcraft.com/patchnotes/
The latest test realm patch notes can always be found at http://www.worldofwarcraft.com/patchnotes/test-realm-patchnotes.html

General

• Copied Test Realm characters are not copied with their achievement history in order to better facilitate the character copy process.

Classes: General

• Many class talents, spells, and abilities have been overhauled, added, or removed.
• All spell and ability tooltips will now display damage averages rather than minimum and maximum damage potential. This feature is on by default but can be changed via the Display settings under User Interface options.
• Ammo has been removed from the game.
• The character levels at which classes gain new spells and abilities have changed.
• Many item and class stats have been changed or removed.
• Rage has been normalized.
• Spells and abilities no longer have multiple ranks and now scale with character level.
• Talent trees have been altered. All player talent specializations have been reset, allowing for free re-specialization.
  • Each specialization has been reduced to a 31-point talent tree.
  • Players will now get a total of 41 talent points to spend.
  • Players will be asked to choose a specialization at level 10. Doing so will result in the unlocking of a spell or ability unique to that specialization, as well as one or more passive bonuses.
  • Once a talent specialization has been chosen, players may only place points in the primary tree until at least 31 points have been spent there.
  • The initial announcement regarding these talent tree changes can be found on our Cataclysm forum: http://forums.worldofwarcraft.com/thread.html?topicId=25626290449&sid=1

Death Knights

• A dedicated tanking tree (Blood) has been implemented.
• The effects of Blood Presence and Frost Presence have been exchanged.
• The way in which runes recharge has changed.

Druids

• A new Eclipse mechanic has been added for druids.

Hunters

• Five pets can now be stored with the hunter at all times. Any one of these five pets can be summoned via the Call Pet ability.
• Focus has replaced mana as a new resource.
• Hunters now start with a pet at level 1.
• The Stable will now store 20 pets. If a pet is moved into the Stable, its talents are wiped.

Mages

• There is now a new spell fly-out UI feature for mage portals. Clicking on the Teleport or Portal buttons will expand the list of choices available.

Paladins

• Paladins now have a new resource bar.

Warlocks

• There is now a new spell fly-out UI feature for warlock pets. Clicking on this single button will open up the list of available pets to summon.
• Soul Shards have been removed from the game as items. Instead, they now exist as a resource system necessary for using, or altering the mechanics of certain spells.

Items

• Resilience no longer reduces the chance a player will be critically hit by an opponent.
• Durability: cloth, leather, and mail now have as many points of durability as plate, making the repair cost on death much closer to equal for all classes.

Professions

• The glyph system has been updated to now feature three different types of glyphs. Many class glyphs have been added, altered, or moved to different glyph types.

User Interface

• Spell Alerts have been added to notify players when procs on select spells and abilities occur. A visual notification will display around the character and the activated ability will be highlighted on the action bar.
• The Arena Teams pane has been improved.
• The Character pane has been redesigned. Character stats can now be shown or hidden via the Show All Details/Hide All Details button on the bottom left. When shown, all character stats will be visible in a window to the right of the pane. Stat sections can be reorganized by clicking and dragging them up or down the pane.
• The Professions panes now have more filtering and search functionality, as well as buttons to easily link recipes in the chat frame.
• A Professions screen has been added to the Spellbook to better display the details of a character’s primary and secondary professions.
• Many of the yellow System Messages that would display in the chat frame when leveling up have been removed.
• New text animations now alert players as they level up, also providing information on when new talents, spells and abilities are available.
• Professions and Class Trainers windows have been altered to more clearly display available and upcoming purchases.
• New Raid frames are now. They can also be used in place of the standard 5-player party interface via the User Interface options.
• The Spellbook interface has been improved for greater ease-of-use and visual appeal.

For additional notes on Lua and XML changes please visit the UI & Macros Forum: http://forums.worldofwarcraft.com/board.html?forumId=11114&sid=1

Hey there, it’s your local silverly reporter with another batch of very interesting stuff – Archaeology! The brand new shiny secondary profession was added to beta build 12942 (the latest one, if you are reading this fairly recently after it is posted), and I’ve had the chance to go test it out. Let me tell you, it’s absolutely amazing! I may be a little biased, because it’s new and different from all the other professions, but I honestly thing it’s a very interesting thing in and of itself.

But I do tend to ramble – let me show you a few things about it!

First, let’s start with a blue post from He-Who-Crawls-with-the-Ghosts
Ghostcrawler said:
Archaeology just went in this build for the first time and we don’t yet have any of the support around it to teach players what to do. It has been informative to watch players learn to swim by drowning, but we thought it was time to offer a little more direction.

Digsites

Once you train archaeology, you can see digsites on your map (not your minimap – your map). There are always 4 digsites per continent. These will not change until you dig one out. Most of the time, you’re probably only going to be concerned with the 4 sites on your current continent, but at higher character and archaeology skill levels, there will be 16 sites active at one time (4 each in Eastern Kingdoms, Kalimdor, Outland and Northrend.)

You will only find sites in zones of your level or lower. A level 25 player will have all 4 sites per continent in level 25 zones. (This means Outland and Northrend will have no sites at this time.) A level 80 player will have all 4 sites in any zone. A low level Kalimdor player might have sites in Ashenvale and Stonetalon, while a level 82 might have Uldum, Ashenvale, Stonetalon and Silithus.

Sites are race specific. You can usually guess the race by the location. Kalimdor tends to have a lot of night elf ruins. Eastern Kingdoms tends to have a lot of dwarf ruins.

Some races are only available on some continents (such as orc and draenei on Outland). You need to have a minimum character level and a minimum archaeology level to use these. Currently you can see them if you are a certain character level but can’t gather from them until your archaeology skill is higher. For Outland, the skill is 300. While somewhat consistent with other gathering skills, we think this is confusing and we will change it so that you don’t even see the digsites until your archaeology skill is sufficiently high. Tol’vir artifacts are the most rewarding, but also require near max archaeology skill to recover.

Some players are reporting some issues with digsites not showing up correctly. We’ll look into these bugs.

Unlike other gathering skills, digsites are player-specific. Other players will be searching in different locations. There is no competition for digsites.

Fragments

Each digsite can be searched 3 times before it despawns and a new site spawns. If there is a digsite somewhere too far away from you or otherwise inconvenient, just ignore it and hit the closer ones. You won’t run out.

To search a digsite, use the Survey ability. The survey tool will spawn and point in the approximate direction of the artifact. Red means you’re far away. Yellow means you’re close. Green means you may be within 40 yards or so. When you discover your find, you’ll get fragments specific to a particular race.

There are two main strategies to surveying. You can attempt to triangulate by moving around the outer edge of a digsite. (Like quest blobs, the digsites are not necessarily circular.) Other players just keep surveying, heading in the direction the tool points until they strike paydirt.

Remember, the thing you uncover is yours. There is no competition with other players and nobody can gank your node.

Artifacts

Whenever you get a new fragment for a race, you’ll start a research project. You can only work on one artifact per race at a time. When you have enough fragments, click Solve to complete that artifact. You won’t waste excess fragments — they will just start the next project. You can be working on one project for each race at a time.

Most artifacts are common. These give you a little bit of lore or flavor text and an item you can sell for a small profit (presumably to a museum!) The profit increases as the value of the artifact increases. You can estimate this by the number of fragments needed to finish the artifact. You will only find cheaper artifacts at low level, but you can find cheap and valuable artifacts at higher level (the reason for this is we want players to be able to find all the artifacts if they want to). You won’t find a second copy of a common object until you have found all the artifacts of that race. If you get stuck at a certain skill level of archaeology or character level, you may find an artifact more than once until you reach the next tier.

Some artifacts are rare. These always make a blue or purple item. Many of these have no in-game power and are toys or for flavor. Some of them are actual weapons and armor. The latter items are all bound to account. They aren’t heirlooms in that they don’t scale, but you can pass them around. So if you are level 80 and you find a level 60 axe, you can always have another character use it when they are level 60. You will never get a rare artifact more than once.

The future

We designed archaeology to be easily expandable, so we plan to add much more content in future patches, including new races to research (though to be fair, there’s a sizable amount of content already). We also have a feature that is not available on beta yet, that allows you to use your archaeology skill for a slight (think Fish Feast-level) bonus in the Cataclysm dungeons.
And now my own words on all this, accompanied by screenshots.

When you first train Archaeology, you may be a little lost about what to do. I sure was. The trainer doesn’t brief you, and there is nowhere in the UI that you can find guidelines. I suspect this will be changed later on, but as of today, it took me quite some time to figure the stuff out. And here is what the stuff is all about.

You are given a spell you are going to be using a lot – Survey. You will need to look at your world map and search for the archaeology-specific digging shovel icon. Those indicate digging sites. Once you get to the digging site, you will want to start using that Survey spell you just got. Every time you cast it, you will place a surveying equipment on the ground. It consists of a telescope-like looking part, that indicates the direction of the closest set of fragments; and a light that is either red, yellow, or green – this indicates how close you are to the fragments, green being very close. You keep using those Surveys, and eventually you will be able to pinpoint the location of the fragments set. When you perform the final Survey, the one that is within only a few yards of the fragments, an object will spawn (different for each one of the races), and you will be able to loot 2-4 Fragments of that specific race. The first fragments you loot will determine which artifact you will be searching for. Once you’ve collected enough fragments to assemble an artifact, you can click the “Solve” button in your archaeology window and get your reward. “Solving” a common artifact awards the artifact itself as a gray item in your bags, that you can vendor – but it will also give you quite a few skillpoints towards your profession. You can find all of the artifacts we know of presently here

Different digsites award different fragments. Surveying around ancient bones usually gives Fossil Archaeology Fragments, night elven ruins yield Night Elven Archaeology Fragments, and so on. There are total of 10 “races” – I put that in quotation marks, because Fossils are not exactly a race. I am still discovering all this, but I suspect the Forsaken and maybe the Worgen won’t have their own fragments. Possibly neither will the gnomes and the goblins, but I am only speculating here.

Just in time for gamescom, we’ve dug up the necromancer, a master of dark arts who wields the power of death… and life! This sinister Guild Wars 2 profession can summon undead minions, suck the life force from enemies, and cheat death with the eerie Death Shroud ability! Unearth the uncanny necromancer and his strange abilities here!

Chieftain of the Tauren in Thunder Bluff, and a Shaman by profession. Father of Baine Bloodhoof. Cairne and his people were saved from the Centaur by Thrall and his warriors. He then repaid their aid by joining The Horde. He is considered one of the most dangerous creatures alive. Currently leads his people from Thunder Bluff, although he yearns for the day he can step down and retire to the wilds.

Appears in Warcraft III: Reign of Chaos
Appears in Warcraft III: The Frozen Throne
Appears in World of Warcraft

Player-run guilds emphasizing the gold-farming profession have become popular in some games. At least one guild, in World of Warcraft, has chosen to name themselves “Gold Farmers”, specifically to mock such operations. Another mock guild was set up on several European servers called “we farm gold u buy” [sic], a clear dig at the usually poor typing and grammar that Chinese gold farmers often have.

Much derision was poured on websites that advertise and sell in-game items and property when many of them closed briefly and could not carry out transactions over the Chinese New Year. Players took this to be incontestable truth as to the identity of those involved in the farming and selling of virtual items.