The WOW 4.0.1 patch is now available for download. The patch, which will basically be the transition between the current World of Warcraft and the new WOW Cataclysm, features a ton of updates and changes.

The 4.0.1 patch includes the following general updates to WOW:

- Auction house addons will need to be updated
- Flexible raid locks are now live.
- The Return to Graveyard button can now be used.
- There is now a guild limit of 1,000 members.
- The glyph system has underwent major changes.
- Reforging has now been added.
- The streaming launcher will now be active.
- Many other changes to Guilds that Officers should become familiar with.
- Currency for gear has undergone significant conversion.
- Mana regeneration is quite a bit different.

There are a ton of other changes, that you just need to see for yourself. The overall feedback from WOW gamers seems to be positive towards the 4.0.1 patch. This will transition World of Warcraft towards the December release of Cataclysm, which should be available for $34.99 prior to the Holiday Season.