I recently switched to beta v1.1 on steam and what an amazing difference. No more stuttering, it's perfectly smooth and mouse movement is no longer locked to a 30 fps tick upscaled, it's now based on your framerate, so playin that game locked at 144 fps is smooth as silk.

Patch notes:

PATCH NOTES FOR 1.1b1

--- SNEAK PEEK, PATCH IS STILL NOT RELEASED ! ---

ENGINE
Imrpovement Input is now tied to frame rate instead of the internal tickrate. Game play should be much smoother
Improvement Backend changes to text/font handling to allow additional locales
Improvement Hundreds of various improvements and bugfixes to the engine side
Improvement Initial implementation on Save game logic that allows future game upgrades without lost progress

GAME CODE
Improvement Various objects include additional interpolation to increase smoothness
Improvement Rain code refactored to improve performance
Improvement Few additional textures added to "triggerable gradient" list for mapping purposes
Improvement Tighten the feel for Bowling Bomb "Homing" activation
Improvement Slight tweaks to Cultist AI
Performance Fixes issues where heavy sound calls would tank the frame rate, especially z3a4 battle
Performance Optimized frequent movement calls by enemies to reduce load
Performance Optimized physics code on moveable props
Performance Optimized some particle effects to reduce overdraw
Bugfix Workaround for invalid RETURN from nextsectorneighborz to avoid console spam
Bugfix Fixes an edge case which lead to the fans not preventing player fall damage sometimes
Bugfix Fixes an error that could lead to false positives in line-of-sight checks from enemies
Bugfix Tweaks to reduce odd baton switching when pressing 1 and firing certain weapons
Bugfix Fixes an edge case that could lead to the baton doing less damage than intended for one hit
Bugfix Fixes an edge case that would lead to gibs not being generated from specific map effects
Bugfix Fixes a math error that could mess up aiming the loverboy from certain angles
Bugfix Mech fights will no longer cause issues with jumping
Bugfix Fixes an issue where secret level would not appear in results
Bugfix Fixes an issue where some enemy types would not count for bowling Strikes.
Bugfix Fixes an issue where explosions on flying enemies might not count for achievements
Bugfix Achievement for T-Shirt would not trigger
Bugfix Adds more checks for "fryall" event to account for additional enemy types

ART
Improvement Shelly overpaint
Improvement Centipede overpaint
Improvement Wendigo overpaint
Improvement Brute overpaint
Bugfix Sky texture seams fixed when playing at high FOV

MAPS
Improvement z1,2,3 - Skybox textures have been adjusted
Tweak z3a1- Platform trigger optimized to account for sequence breaking
Bugfix z3a4 - Bathroom secret optimized, secret should trigger more reliably
Bugfix z6a2 - locker blocking has been adjusted
Bugfix z3a1 - Specific movement could cause a softlock in map scripting
Bugfix z6a1 - fixed 2 blocking underwater sprites
Bugfix z7a2 - Tweaks to outer ring ceiling to prevent squishing
Bugfix z2a1 - Fixes small texture misalignment in a tank

looks like steam got updated but when will gog get that sweet shit as well?

That is incorrect. On the duke4 discord channel, someone asked about that and this is how it usually works:

"Voidpoint provides the update files to GOG, but they don't control when they go live as that's entirely in GOG's hands. It typically only takes a day or two before it it's pushed (sometimes less, sometimes more, but in any case that is out of voidpoint's control)."

I recommend getting onto Discord and then going to duke4's discord channel:

https://discord.gg/FQkMQ7r

Voidpoint devs hang out there.

That's the point. They've not provided the current BETA for GOG customers even though GOG Galaxy supports BETA channels. They've also not provided achievements for GOG customers because they don't care to ad achievements here. This has been confirmed by one of the devs some time ago.

The game is now one year old and there has only been one patch released during the past 365 days that hasn't fixed many of the big issues the game had and still has. People like me haven't even been able to really play the game because of how poorly it runs. The BETA update seems to improve things but nobody knows when this update will not be BETA anymore. It has been in BETA for months now and the devs won't give you any kind of information besides the usual "It will be available SOON™" crap.

Won't be long now.

Just in case I informed the GOG support. Hopefully this will speed up the upgrade process a little.

This really sucks. The delayed update of many games on GOG is the biggest disadvantage of the platform for me....

Guess I'll have to play something else then this weekend. I wonder if Voidpoint has even send the updated files to GOG yet. Wouldn't be surprised if that is not the case.

Thanks for the update. Also, how did you make your text orange?

Should've doesn't mean they actually got it and the game not being updated by now makes me believe more that they've recieved nothing yet.

Can't you use the automated system that many other developers use? In this way the waiting time would become practically zero for those who use Galaxy.

You're asking too much here. Voidpoint is already having a hard time posting some news about this new update or even the changelog for it (both hasn't happend til today).