Is out.

Is it avialable for GOG as well? If so how do I opt-in?

Does this patch fix the issue of the game wasting resources and potentially causing systems to overheat?

(That issue is currently a dealbreaker for me; while there are a few design decisions I disagree with, those aren't showstoppers, whereas this bug is.)

It might be Unity thing, though.

Sorry, no optimisations in this patch.
There are some aggressive culling things I can do to fix that, so will be doing that in a future patch. Just waiting on support from GoG so I can upload a patch.
I think Gamecom may be slowing thing down but I'm keen to get the patch to gog asap.

Before someone else has to bother looking it up, here's what the patch changes:

Audio

Added per-trap sound effects.
Trimmed start of several attack, enemy and spell sounds so that they are a little more snappy.


Controls

Invert mouse now only inverts up/down.
Remove keypress delay between from mid-combat rounds.
Fix automove on cursors (arrows) to work like AWSD automove.
Keyboard autorepeat now only kicks in when in a scrolling list or entering a name.
Keyboard autorepeat is now a shorter initial delay, since its not used for movement.
Add New Party Order (N) key.
Allow KeypadEnter to work like Return key.


Gameplay

Spinners work more like the original. Guarantee to spin you (random can't == 0), spin on turn as well as Move.
Implement the thief dagger and Luck Shield hide in shadows bonuses.
Added Heal Entire Party option to the Temple.
Added Recharge Entire Party option to Roscoes.
Summoned monsters/NPCs no longer soak up combat XP.
Stop onyx keys from dropping in mangars tower.
Treasure now has 25% chance to NOT be in a chest.
Reworked the calculation for starting distances of random monsters.
Fixed monster spells that didn't have a range set.
Fixed problem with script reward items - were getting set to 255 instead of the -1 (which causes random 1..default). Fixes "unlimited" charge items being rather limited.
Archery now uses the hunter crit.
Heal Harp now lets you specify who gets healed.
Dragonshield now usable in combat.
Added aggro to target dummy so it always gets attacked first.
Remove map rotation disorientation at night in the city. Maps only get disoriented in dungeons.
Increase identify trap chance of rogues.
Rogue identify skill now works of intellect rather than dexterity.
Weapon toHit bonus now correctly adds bonus to damage also.
Monster spells should never show up, no matter what level you are at...
Enabled mithril arrows.


Graphics

Fix night and day issue with shadows appearing on buildings from sun below ground.
Fix spell icon positioning in large-view modes.
Change to 2 letter classes in large-view modes.
Fix some day/night shadow artifacts during day->night transition.


Journal

Now records teleports onto the journal and the minimap.
Walls are only discovered in darkness if you run into them.


Misc

Fix typo (Throught) in Longinous text.
Fixed some typos in spell descriptions for ARFI, AIAR, and SHSP.
Fixed missing period at the end of roscoe's energization message.
Fixed target dummy spell description (removed mention of Special Slot since it doesn't exist in remaster).
Fix gender issues in "missed" message.
Made some spell descriptions gender neutral since we don't know if the caster is a male or female.


UI

Added disorentation icon, to let you know that you don't know your direction (for when the minimap starts to not be North = up; in dungeons).
Right click on message scroll now acts as a BACK BUTTON.
Item comparison tooltip now includes unarmed combat - useful for Monks.
Show message when characters jump out of the way of traps.
Item tooltip now shows arrow damage also.
Added some tool tips for races, in character creation.
Added some tool tips for class, in chracter creation.

Some really nice changes in there, looking forward to it.

That's some good stuff in there, neat. Thanks for the post.