Update v4.2.4:
Balance

+25% volcanic world habitability for machine climate preference traits to match their minimum habitability value on Volcanic worlds.

Replaced Food output for some specimens with one quarter as Alloy output bonus for Infernals.

Slightly lower Unity and Research rewards for several events in the Red Giant and Cosmic Dawn Origins.

Bugfix

The Payback origin now get the correct starting buildings as Materialist and Spiritualist

The trait Propaganda Machines now shows the correct modifier

When transferring planets under colonization after a war is on, if the colonizing species isn't allowed to colonize the colony is destroyed (stops forever colonization where you keep sending the new colons to the slave pits)

Fixed leaders losing ascension related traits after species modification in some cases.

The tooltip for Permanent Employment Civic's Reassigners say they use "Food (or equivalent)", implying they use Alloys when you are Thermophile.

Ringworld construction and other binary/trinary restrictions correctly apply in binary or trinary hyperthermia systems.

Replaced minor additional food upkeep for hive mind unity boosting buildings with extra Alloy upkeep.

Fixed infernal Alloy upkeep for Voidling, purging, and non-sapient pops.

Voidworm Troika designs can be saved.

Voidworm Troikas are no longer created without upgrades when three large voidworms combine.

Fixed some issues with machine empires, catalytic processing and alloy producing jobs.

Fixed stuck in combat when the defender refuses to actually do combat.

Volcanic Districts now improve tech weights.

Preventing evasion to go negative from evasion against psionic modifier in combat calculation.

Fixing abduction code setting the species correctly when checking if species can live on planet.

Performance

Optimized string allocation in ship component modifier processing.

Stability

Fixed random CTD with invalid ships

Changed stack allocation to heap in particle varied values to avoid CTD:ing

Fixed CTD due to race condition between UI and AI accessing base growth cache.

OOS fix: Planet species caches are now stored in arrays instead of unordered sets or maps"

UI

Shows the 25% Minimum Habitability on Volcanic worlds for Mechanical and Machine pops

Update v4.2.3:
Improvement​

Thermophiles can pick the Ocean Paradise Origin

Thermophiles can pick the Aquatic Trait

Thermophiles can pick the Agrarian Trait

Thermophiles can pick the Agrarian Idyll Civic

Thermophiles can pick the Anglers Civic

Adds conditions to get alloys when you extort a Spiritualist Thermophile faction.

Pyromanic Instinct blocks "friendly" Civics and Origins

Rogue Servitor empires now receive an additional Alloys income when having an Infernal subspecies (instead of food)

Balance​

Reduced Infernal Livestock output from base 1.5 down to 1 Alloy

Adjusted cost of the "Distribute Living Metal" decision from 500LM to 700LM

Adjusted "Thermal Engineer" councilor (replaced "Research Cost (Engineering) -1%" with "Research Station Output +4%")

Adjusted "Pyromanic Priest" councilor (Job Consumer Goods upkeep from -3% to -2%)

Adjusted "Galvanic Symbiosis" planetary refund modifier from 1 to 0.75

Crisis Path: Adjusted Entropy Conduit ship stats (+2000 Hull +1000 Armor +2000 Shield)

Crisis Path: Adjusted "Entropy Harnessing" edict (Energy Credits from Technicians from -1 to -2.5, Entropy from Technicians from 0.5 to 0.4)

Crisis Path: Colonies buffed by Entropy Conduits now produce more unity

Crisis Path: Stars stellarformed by Entropy Conduits now gain additional deposits

Crisis Path: Machine Intelligence can now pick the ascension perk

Crisis Path: Cost of the "Life Seeding" decision changed from 1000 Energy to 2500 Entropy Crystals

Adjusted alloy upkeep of Spawning Drones from 2.5 to 2

Adjusted Infernal Livestock output from 1 to 0.75 alloys

Bugfix​

Fixed a typo in mercenary dividends relating to Galactic Risk Management

Fixed Regenerative Armor from Galvanic Synthesis civic not auto-upgrading in ship designer when better armor technologies are researched

Stop Quantum Catapult targeting graphics being shown in System view

Fixed Infernal upkeep not being affected by Clone Soldier and Necrophage origin species traits.

Subterranean Empires now have uncapped Mining Districts on Volcanic Worlds.

Fixed issues with psionic assimilation for gestalt empires and individualist machines.

Fixed Ruler clothing for Infernal portrait 5 (shoulder plate for the hedgehog)

Fixed the issue with Black Needle Base no longer being colonizable after assaulting it.

Fixed Augmentation Bazaars not having access to Loyalty Circuits in empire creation.

Fixed Broken Shackles starting with 2k more pops than they should

Migrating Forests modifiers and Special Projects are removed when the planet is terraformed to a Volcanic World.

Eager Explorers now require Scientific Method to unlock Thermotechnic Forums.

Stability from the Unbreakable Resolve trait gets properly applied even if the pop groups with Unbreakable Resolve were later additions to the planet in question

Pops under assimilation no longer have extra upkeep.

Planets with event purges should no longer continue purging after having been recolonized.

Fixed the tooltip for Syncretic Evolution mentioning the wrong number of pops.

Subterraneans can no longer build Industrial Mining Sites without any gameplay effect.

Volcanic World mineral extraction zones can now build Industrial Mining Sites for +2/+4/+6/+8 mineral districts unless they are already uncapped.

Added flag infernal_subspecies for Infernal subspecies (used for some civics/mods)

Fixed event "Star-Crossed Lovers" appearing for Scorched World Heralds

Fixed the "Arcology Project" decision not counting Volcanic World districts

Fixed Volcanic Worlds not having a click sound

Fixed "Spawning Pools" from "Permutation Pools" civic for Hive Mind using food as Infernals

Fixed "Seismic Carpetbombing" creating Volcanic craters on artificial planets

Fixed "Bombardment Stances" not killing the last pops of a planet

Fixed Infernal Livestock not counting for a Evolutionary Predator purge

Fixed Infernal Livestock counting as Specialists

Fixed the starbase building "Gravitational Centrifuge" (crisis path) not being buildable in crisis systems

Fixed Pre-FTL civilizations spawned by the Hyperthermia crisis not ascending into the space age

Pyromanic Instinct blocks other genocidal Civics

Tankbound now gains Overseers from rural districts (Geothermal, Melting) on Volcanic Worlds

AI Empires now build Thermotechnic Districts on Volcanic planets

Fixed the Military Academy adding research output and consumer goods upkeep to soldier and warrior drone jobs.

Military Academy bonus workforce is now empire-wide

Hard Reset is no longer a valid origin for AI empires (that's like the entire narrative!)

Fixed some edgecases when playing Hard Reset where you could end up with pops who had the old negative traits and never lost them.

Fixed the number of pops affected by the Zoonotic Plague, Enigmatic Fortress, and Numistic Order deals

Terraforming your Homeworld will no longer cause the Terraforming event talking about making a second homeworld to fire.

Re-enabled Devastation from Cosmic Storms at 0.01 per month.

Infernal AI empires colonize properly (even if they don't have any food)

Overclocking setting of the galactic crucible now also persists after loading a save game

You can no longer queue construction of districts while the Arcology Project is underway.

Cybernetic Imperial authorities now give additional noble jobs.

Purging infernal pops gives alloys

Fixed Fallen Empires being able to build "Starfire Cannons"

Fixed Volcanic Forges not being destroyed after terraforming a planet into a Hive/Machine World or Ecumenopolis

Crisis Path: Fixed Conduits damaging own colonies when playing as non-Infernal empire

Crisis Path: Fixed mining & research stations not working correctly when Conduits stellarform a star

FE outposts now rebuild in systems where they have unconquered planets.

Artillery combat computers will now prefer median range instead of max range, allowing Titans to use most of their weapons instead of only their Titan Weapon

Fixed erroneous tooltip for the Cave Dweller concept

Removed the surface quarry and the voltaic production yard from urban zones

the Justicial Complex FE building can now be built on Penal Colonies

Megastructures show correct value in upgrade tool tip for effects applied with the upgrade

Stars stellarformed by an entropy conduit no longer reroll the deposits of the star

Certain special deposits, such as those from the Life-Seeded origin, are now correctly kept upon terraforming into hive or machine worlds.

Fixed being able to issue some fleet orders to unreachable systems if the fleet has a jump drive.

Fixed missing newline for "not in range of Jump Drive" message in the tooltip for the build orbital station command.

Fixed efficiency being able to go negative, causing jobs to run in reverse. As bad as those slave riots or fire cult ruined planets are, Metallurgists shouldn’t disassemble alloys back into their original components.

Performance​

Reduced memory allocations in topbar UI updates

Stability​

Fixed Mac CTD happening in late game when calculating fleet auras

Fixed object lifetime issue from scope used by on_resolution_failed leading to undefined behavior.

Fixed crash in strike craft being damaged by non existing/dead fleet.

Fix an OOS on reconnect where Starbases where blocking fleets path on the server but not on the client

Removed dependency on SetThreadDescription to enable the game to run on ex Windows 10 LTSB 2016.

Fixed CTD that could happen when a special project was completed while no longer valid

Made Stellaris respond to OS events during loading gui types to avoid "freezing" the system at 5% loading for an unknown amount of time (only dx11 backend).

Fixed some more occurrences where file read/write is being blocked by system and stellaris handling it by crashing.

Modding​

Added a new flag to the Entropy Conduit target script to exclude special stars

Update v4.2.2:
Stability

Fixed failure to read from shader cache resulting in crash.

Fixed CTD that could happen when a science ship researched a special project

Fixed object lifetime issue from scope used by on_resolution_failed leading to undefined behavior.

Fixed crash in strike craft being damaged by non existing/dead fleet.

Replaced abuse of stack memory with heap allocated in the Localization system to avoid random crashing on some computers.