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.html
Hunter
- Tranquilizing Shot no longer incorrectly restricts use of other Hunter abilities in specific situations.
User Interface
- Combat Log
+ Only the last 300 combat log entries are now stored.
+ Filter settings are now properly saved.
+ [...]