Changes:

3.2.2:

• Quest log levels, while scrolling, even... (HybridScrollFrame needs to be documented somewhere...)

3.2.1:

• Quest log levels, work again.

3.2:

• Bump TOC
• Fixes for WoW3.2 from D_Town
• Fix quest sharing

3.1-beta4:

• Tracked achievements show up in the tracker. I intend to improve on this, but it's functional as-is.
• Don't auto-watch completed quests based on zone/subzone if remove-completed is on.
• Don't unwatch quests that were watched because of watch-when-gained when the zone/subzone changes.
• Fix unwatch-when-completed.
• Embed the correct version of Babble-Zone.
• Apply a patch for LightHeaded support from schultzr.

3.1-beta3: Wrong method call in PartyNotify, Tracker still showing up, and two missing embeds.

3.1-beta2: A few tracker bugs, mostly.

3.1-beta: Make work with 3.1. Probably. I switched to a new version of the library that interacts with the quest log, and it's possible I missed something along the way.

2.0.65647: 2.4. Minor changes to level display.

2.0.55071:

• Finally got bored of waiting for someone else to fix Tablet, and fixed it myself. Alt-clicking will allow you to interact with the locked tracker again.
• Fixed the taint problem.

2.0.54738:

• TOC updated for 2.3
• Quest levels broke because of the new low-level stuff; fixed (and made more efficient -- I wrote that *ages* ago)
• Fixed LightHeaded error when viewing a quest LightHeaded didn't know about.

2.0.52898:

• Add new module PlayerNotify to run all player quest announcements through SinkLib, letting you choose where you want to output the text -- defaults to whatever scrolling combat text you're using.
• PartyNotify and Announce now have slightly more detailed options for what to announce.
• Change PartyNotify to use SinkLib.
• zhCN localization by yhwh. Updated zhTW (helium and NightOwl), deDE (gamefaq), koKR (sayclub and next96).
• Hopefully fixed a memory leak and reduced bandwidth use in groups.

2.0.49757:

• Update for 2.2
• Various localization updates and bugfixes

2.0.44273:

• Add PartyLog module, which will display the quest log of a party member. (Somewhat rough around the edges still; disabled by default.)
• Fix memory leaks in Quixote comms code. (Mostly stuff that got missed in the big post-2.0 cleanup.)
• Fix an error that would occur if an addon had altered the reaction level global strings.

2.0.43882:

• Fix Comments and Detached modules requiring an interface reload to reappear if you disabled and then reenabled then.
• Remove superfluous strings from some locales.
• Update to deDE localization by gamefaq.

2.0.43812:

• Add a new "detached" module, disabled by default, which can be used as a more customizable version of the standard fubar tooltip.
• LightHeaded integration now properly displays rep gains and quest series.
• Tablet settings like minWidth, maxHeight, and strata can now be changed without reloading the UI.
• Fix alt-clicking on a quest in the main tablet causing an error if the tracker module was enabled, but "use own tracker" was disabled.
• Fixed coloring of the class quest headers
• Rewrote module system to be like AuldLangSyne's.

2.0.42647:

• Add item tooltips in the detail panel.
• Support newer LightHeaded releases.
• Fix some memory leaks found with the new 2.1 profiling tools.

2.0.38378:

• You can now add the quest giver into the default blizzard quest log.
• Fix the dewdrop error some people were having.

2.0.36300:

• Update for 2.1.
• Let sound type be chosen on a per-event basis (e.g. Peon for progress, Peasant for complete).

2.0.34662:

• This update is a massive rewrite of everything. There's now extensive use of modules, and whole swathes of functionality can be deleted entirely if you don't want them.
• Allow choosing of custom colors for everything, instead of Blizzard defaults.
• Add LightHeaded integration.
• Add option for maxHeight and minWidth on the Detail and Tracker frames.
• Add more sounds that can play on quest events.
• Party notifications are much more robust.
• More little tweaks and bugfixes than I feel like writing out.

2.0.29667:

• Sort quests in the tracker by level.
• Slightly better handling of autowatched quests between sessions.
• Improve responsiveness for "show current area quests only".
• Tweaks to highlighting.
• Bugfix in some onload data checking.

2.0.28429:

• Highlight more words in the quest objectives.
• Fix escape closing the detail frame.
• Fixes for bugs in automatic quest watching.
• Update localizations.

2.0.27405:

• Use the Peon "work complete!" sound for quest completion.
• Autowatch gained quests if they match the zone/subzone settings.
• Unwatch autowatched quests when leaving the zone/subzone they were watched for.
• Add options to the main menu for locking and changing the strata of the tracker and detail panel.

2.0.27117:

• Add an automatic quest watching feature, with options to auto-watch when you enter the zone a quest is in or the subzone it's in, when you get a quest, and when you complete all a quests' objective.
• Add an option to play a sound when you complete all a quests' objectives.
• The quest title in the detail frame will now behave exactly like titles in the tooltip.
• Show suggested group size for group/elite quests in the detail panel.
• Add config options for display of party member objective completion in chat or the messageframe.
• Add option to announce in party chat when you advance a quest objective.

For a complete version history, see here