Dates are in DD/MM/YYYY notation:

5.1.4 - 21/5/2013
Made Discord Unit Frames compatible with WOW 5.3.

5.1.3 - 20/4/2013
Added the ability to hide DUF frames while in pet battles. See Misc. Options for the check box to enable this effect.

5.1.2 - 5/3/2013
Made Discord Unit Frames compatible with WOW 5.2, Thunder King.

5.1.1 - 12/2/2013

• Fixed the Copy (frame) function in the DUF configuration window. If you have previously attached unit frame elements to the DruidManaBar, DemonicPowerBar or XPBar and you copy the SELF frame you will get an error (selecting an effected element, the "Attach Frame" option will be blank). Changing the Attach Frame will resolve the error (X/Y settings will also need to be changed).
• Fixed the Role Icons not showing/hiding when checking the option in the DUF configuration window.
• Fixed Combo Points not showing unless you're a Rogue or Druid while the DUF configuration window is open.

5.1.0 - 8 Feb. 2013

• Boss frames added.
• Fixed some variable typo errors.
• Removed some entries in the Options "Attach Frame" dropdown that could be problematic (see the 5.1.1 changes for more information).

5.0.17 - 18/1/2013
Found and fixed the last of the taint errors. The taint and error logs are now clear for DUF issues .

5.0.16a 7/1/2013
Discord Library fix for potential call to protected function in combat

5.0.16 25/12/2012
Added the ability to save and recall root texture paths.

5.0.15 12/12/2001
Added Root Path for your custom textures and fonts (under Misc. Options) - Enter a default path to your custom textures and fonts (a trailing slash "\" is required).
Wherever you have entered a texture or font file name without a fully qualified path, the root path will be prefixed at runtime (if you enter a partially qualified or incorrect path for a texture file or the root path you will see a green blob).

Fixed in 5.0.14a
Fixed the new Custom Paths checkbox not initialsing properly in the DUF Options window.

5.0.14 4/12/2012

• The DUF Options window can now be closed using the escape key.
• Custom Paths for textures and fonts: (Under Misc. Options) This option allows you to place textures and fonts in a folder(s) other than the hard coded Interface\AddOns\DiscordUnitFrames\CustomTextures\ and Interface\AddOns\DiscordUnitFrames\CustomFonts\. You will have to add the full paths for ALL textures and fonts you use ie. Interface\AddOns\YourFolder\YourTexture. The file extension is not required. Valid file formats are .BLP and .TGA.
  
  This means that, with textures and fonts stored in your own folder you (or people who use a UI package you've uploaded using DUF) don't need to re-copy the artwork or fonts every time DUF is updated.
  
  NOTE: If you change names of, copy, move, add textures and let's not forget typos while in-game, you will have to completly exit WOW and re-start before the "new" textures will register (going back to the character select or account login screens is not good enough).
  
  A bright green blob where your amazing artwork is supposed to appear is a good clue your texture hasn't registered (did I mention typos ;)).

5.0.12 and 5.0.13 28/11/2012
Updated for Mists of Pandaria patch 5.1, Landfall.

With the advent of buffs longer than 60 minutes, the alternate mm:ss buff timer has been changed to h:mm:ss.

Fix for Discord Library.

5.0.11 6/11/2012

Some function calls that have been changed over time to "Protected in Combat" have been wrapped in safe call code.

5.0.10 23/10/2012
Finalised new code for removing the default Blizzard unit frames.

5.0.9 4/10/2012

• Implemented a new, safer mechanism for hiding the default Blizzard unit frames. At this stage, changing a default show/hide setting in DUF Options will require a /reload (or logout/logon) for the setting(s) to take effect.
  
• Added a fix for errors caused by creeping taint for Druids and Warlocks.

5.0.8 30/9/2012
Fixed Deathknight class icon being displayed on Monk units.

5.0.7 25/9/2012

• Fixed a regression where default party frames were showing in groups.
• Ongoing fixes for vehicle in combat actions.

5.0.6 23/9/2012

• Fixed a taint issue causing spurious combat and vehicle errors.
• Fixed an error with Shadow Orbs.

5.0.5 18/9/2012

• Added Shadow Orbs
• Added support for sizing as well as spacing for Orbs, Embers/Shards and Runes
• Adjusted texcoords used for Burning Embers and their location relative to Shards (they should now align)
• Fixed a frame name that was causing taint issues
• Updated FizzleUI.lua with my latest settings for class bars

5.0.4 2/9/2012
Fixed mouseover errors being thrown when mousing over non-player text boxes.

5.0.3 1/9/2012
Fixed party frames not displaying in groups.

5.0.2 30/8/2012

• Fixed party frames displaying properly in raids when the option "Hide Party Frames In Raids" is set.
• Fixed an error when trying to update mana bar options.

5.0.1 29/8/2012
Class bars. Death Knight rune bar, Paladin holy power bar, Warlock shard/ember/demonic power bar have been added.

/DUF Options Window. There has been a change when selecting the SELF tab. Two new tabs have been added to the left hand list, Class Properties and Default Properties. These will show/hide the setttings for the Class bars mentioned below as well as the Druid mana bar, Monk harmony bar and Temporary Enchants.

PvP Countdown Timer. I Removed the text from the PvPForever text variable so that when in a PvP zone the timer text will be blank. You can change this variable to anything you like in the LOCALIZATION.LUA file in the DiscordUnitFrames folder.

Warlock Demonic Fury Bar is now a standard Status bar.

Warlock Demonic Fury Bar and Druid Mana Bar Textboxes. These have been added and are specific to their parent status bar ie. they will hide/show along with the parent but the textboxes themselves can be placed anywhere without constraint (See the DUF Options window under Class Properties".

New Text Variables have been added to go along with the new textboxes. These are:

Demonic Fury Current - $dc - Current level of Demonic Fury
Demonic Fury Max. - $dm - Maximun level of Demonic Fury
Demonic Fury %. - $de - Current level of Demonic Fury displayed as a percentage
Real Mana (Druid) - $rm - Current level of a Druids actual mana when shapeshifted
Real Mana Max. (Druid) - $rx - Maximum level of a Druids actual mana when shapeshifted
Real Mana % (Druid) - $rp - Current level of a Druids actual mana displayed as a percentage

4.1.13 13/8/2012

• New text variable $ur. Displays the unit role (tank/healer/damage).
• New Unit Role icon. Displays an icon for the unit role (tank/healer/damage).

Added MazzleUI.lua and FizzleUI.lua to the DiscordUnitFramesOptions folder. These are configurations for a Mazzle style layout set for use at 1920x1200 resolution.

MazzleUI is pretty much the original Mazzle layout without any adjustments for updated or additional frames (Temp. Enchants, Druid Mana bar, Role Icons, 3D portraits etc.). FizzleUI is for my modified Mazzle layout (as seen in the screenshot to the right) that doesn't use the background artwork and viewporting of Mazz. It also utalises the DUF 3D portraits.

To use, copy/paste the contents of one or both into your Wow/WTF/Account/[YOUR_ACCOUNT]/SavedVariables/DiscordUnitFrames.lua file after the line "DUF_Settings = {" (save a backup copy before making any changes) while logged out of the game. Log on type /duf, press the "Misc. Options" button (bottom left), select MazzleUI or FizzleUI from the "Load Profile" drop list and press the "Load" button (you may also need to adjust the "Updates per Second" to 15-30 for best performance in larger raids).

4.1.12 27/7/2012

• Fix for a bug in the flagged for PvP countdown timer.
• Fix for the health and mana bars not displaying in the "default" settup which should help players that are not going to create their own configuration.
• Fix for a bug preventing the Druid mana bar from displaying.

4.1.11 2/7/2012 Two new variables have been added for use in text boxes:

• $pf - PvP Time Left - Time left until the PvP flag is removed (Player only).
• $rn - Realm Name - The realm a unit belongs to for X-realm groups.

4.1.10 25/6/2012 Fixed the Druid Mana bar not displaying properly when exiting the options window. Fixed non Player and Target frames disapearing when changing some options. Fixed several other options bugs

4.1.9 27/5/2012 Fixed a bug with several textbox variable functions displaying incorrect values or not dispalying any value. These were probably not often used or considered variables like Health/Mana Regen per Second/Tick also Unit's Target's Health/Mana, Max Health/Mana, Health/Mana Percent and Level

4.1.8 13/5/2012 Added basic 3D portrait capability. You can display full length or face only 3D portraits (2D is still supported). Build in racial jiggle, sigh, crouch etc. animations are included with added death and ghost animations.

This is not intended to replace a full featured 3D model addon and should not impact performance if you continue to use your favourite.

4.1.7 20/4/2012 Temporary Enchants now hook the Blizzard Temporay Enchant buttons and removed the Hide Blizzard Temporary Enchant checkbox option.

Fixed a bug being thrown when using the middle mouse button on the element Nudge buttons in the options window. Nudge buttons now nudge 1 on left click, 10 on right click and slide on clicking and holding down the middle mouse button.

4.1.6 2/4/2012 Fixed errors being thrown when dragging some unlocked elements and also mousing over Temp. Enchants while the options window was open (this only happened with non dual wielding specs.).

4.1.5 28/2/2012 Fixed an error being thrown when mousing over the temorary enchant buttons, the weapon tooltip will now be displayed. Clicking these buttons will hide/unhide the default Blizzard temorary enchant buttons so that these buffs can be removed.

4.1.4 18/1/2012 - Fixed a bug where player debuffs were showing their corresponding buff tooltip.

4.1.3 12/1/2012 - Fixed an error being generated if you didn't want to use the DUF specific mm:ss display on buff/debuff/temp. enchant duration timers (thanks Kapone for the "heads up").
It will now show the standard "x d", "x h", "x m", "x s" format returned by the default Blizzard duration function.

4.1.2 8/1/2012 - Hunter Update. From the Blizzard patch notes: "The Happiness/Pet Loyalty System has been removed. Hunters will no longer have to manage Happiness for their? pets, [and the previous damage bonus for pets being happy will now be baseline for all tamed pets.]"

In line with this I've removed the pet happiness icon. The framework is still there so if there is a call for it, it is possible to add a static perma-happy icon back in but DUF was registering for happiness update events which (from my testing) were being generated every tick reguardless of changes to the happiness level (which only occured over the first second when summoning a pet or dismounting). Hunters should see a slight performance improvement in larger raids.

4.1.1 5/1/2012 - *** Performance Update *** I've tuned some of the code for better performance that will be most noticable in larger raids. I've been testing in 40 person AV battlegrounds with DUF running at 25 updates per second with good results (I also run IceHud at 25 updates/sec.(with DogTags) and sRaidFrames with Frequent Updates turned ON as well as various other addons that may or may not effect frame rates).

I've aslo added the option to only repaint the duration timers once every second ie. when they change rather than every time DUF updates (see Misc. Options).

4.1.0 31/12/2011 - Added Druid mana bar (player only). A bar to display a Druids mana level while in bear/cat form. I've not added a text option for this bar but will consider it.

4.0.4 25/12/2011 - Fixed Temporary Enchants.
There is now an option under the Temp. Enchants "Special" button to "Hide the Blizzard Temp. Enchant frame". NOTE: Cancellation of Temp. Enchants is now Protected and (as far as I can tell) can only be accomplished via the default Blizzard TE bar.

4.0.3 18/12/2011 - Fixed (well, improved) the frame rate problem when the options frame is open. Fixed a couple of errors being generated when configuring some options.

4.0.2 16/12/2011 - Fixed a bug not opening the colour picker in the options window. Added Worgen and Goblin race icons

4.0.1a 14/12/2011 - Fixed and error being generated because I couldn't figure out how to set the default unit when the options frame is first opened. The error would be generated if any other button was pressed before selecting a particular unit.

4.0.1 14/12/2011 - Updated Discord Unit Frames for compatibility with versions 4.x of World of Warcraft.