I had to be clearly in my previous post.
Obsidian is using one option of Steam to let users to get "beta" patches, so now before releasing officially the patch they first test it in said Steam users (For avoiding the hotfix). Probably, that testing will end soon and then will be released for the distributors (Aka Gog).

Duh. I was asking why it hasn't been finalized yet.

They were gonna release it, but received another report about stacking HP buffs/debuffs or whatnot.
They are trying to see if they can reproduce the error to fix it.

Yet another duh answer: because it did not fix something it was meant to fix and/or it broke something it was not meant to break. (you know, I think that the duhs might be inherent in your questions.)

So in other words, you have no idea? Okay then. No need for anyone to get all fanboy over it.

Perhaps I'll spend some time reading the Obsidian boards later since no one here seems to know anything about it.

I think it might be nice if they produced smaller, more focused patches that solve major issues and can be tested quickly. We're still waiting on fixes for several broken abilities and talents and they're already talking about a major rebalancing. :|

Missed your post earlier. Thanks for the info. I thought that bug had been squashed in 1.03.

Edit: Actually I was thinking of the bug involving bonuses from items being applied multiple times. The HP stacking is something different I guess.

It looks like it comes in a lot of variants.

From item bonuses.
From class perks got through level ups.
From character racials.
From aura like abilities.
From enemy debuffs.

And of course, they apply to different kind of stats.

Ok people, the patch is here, now yes, that the bets for when Gog release their version begins!

This is the final verison of the patch:

Items, Spells, and Abilities

AoE indicators should now properly resize if the caster has a sub 10 Intellect score.
Fixed an issue with over-time aura spells not applying the correct value on the final tick.
Knock Down will now correctly be applied for the full duration of the effect.
Mantle of The Dying Boar will now trigger at 33% Endurance with the effect of 5 Endurance a tick.
Talisman of the Unconquerable will now give a 1.25 Focus multiplier instead of .25.
Blooded should trigger properly in all cases now.
Boar Animal Companion bonus damage should now work as intended.
Prone Reduction mod should now work correctly.

Quests and Companions

Fixed Aloth and Kana speaking when they weren't in the party in one of the last levels.
Sagani's fox-specific banters now require the appropriate items in the player inventory.
Falanroed's dialogue no longer displays a script node.
Durance will now properly discuss your dream with you if you've already discussed his staff.
Relaxed some constraints on Durance's quest conversation. This allows all characters, regardless of background or stats, to finish his quest.
Players can now loot the nest in Oldsong.
Fixed an invalid conditional check in one of Pallegina's conversations.
Heritage Hill tower will be fully revealed when exploring the map.
Fixed spawn issue in a scripted interaction near the end of the game.
Fixed an invalid creature spawn in the Ogre Lair in Od Nua.
Sagani no longer references the antagonist by name before you know it.
A container in the Catacombs of Od Nua will now remember if it was looted.
The "Master's Tools" quest will now work if you have the required items before starting the quest.
The "A Two Story Job" scripted interaction will not require a second grappling hook to climb down from the window if one was already used to climb up.

General Fixes

Fix for camera movement problems when the game is paused or in a cutscene.
Fix to retroactively restore party movement in saves that display movement speed problems.
Made some fixes to movement speed problems that were being reported (e.g. Boots of Speed).
Fixed stacking health problems with the gul's "Vomit Blood" ability. This fix should retroactively fix your saved games.
Optimized Save/Load game system for better performance.
Optimized how scene transitions are handled for better memory usage on 32-bit machines. This may allow players to transition to new areas without running out of memory.
Sound Sets from hired companions will now be properly restored when adding them to the party from the stronghold.
"All Stronghold Upgrades" achievement now checks 25 upgrades instead of 26. This will properly reward the achievement if you already have fully upgraded your stronghold.
The "Kill All Dragons" achievement will now properly fire if they are killed indirectly (like by a trap). This is a retroactive fix and will be rewarded if the dragons are already dead.
Fixed issue where store prices were getting exceptionally large after receiving a discount.
Fixed issues with gaining infinite XP from bad Stronghold data.
World time will not get very large in some cases after Save/Load.
Modelling offset with Durance's head has been adjusted.
Icon scale is now correct on Hearth Harvest and Reghar Konnek.
All shaders will now compile properly under DirectX 11.
Restored all the missing effects in the intro cutscene.
Removed Blunderbuss item from an early game loot table.
Changed the cursor type on the blood pool in the Temple of Skaen to conversation.
Fixed a few save game issues with dead summoned creatures.
Fixed issue where occasionally a crash would occur when initializing the Steam API.
Draggable windows are now handled properly when running at very high resolutions.
Swamp Lurker's animation won't spaz anymore when the game is paused.
Fixed an issue to prevent binding mouse buttons to window controls.
Game will now pause if you Alt-Tab during a cutscene in full screen mode.
Audio will now resume properly if the game loses focus.
Fixed an issue with infinite load screen if you transition while hovering over a container.
Characters will now wait for their idle animation before trying to reload which fixes an animation sync issue.
Damaged characters performing AoE attacks will not overload their AI state stacks anymore.

I hope the patch is compatible with saves from the previous version?

Of course! It even retroactively fixes certain things, just like the changelog says...

Wow... This was fast... I'm beginning to think that Gog has at least one employee working in the night now...