Changelog

Version: 1.6.9
Date: 2026-06-25
  Bugfixes:
    - Removed leftover Muluna discovery prerequisite from mining-productivity-1.
    - Fixed a Foliax/Muluna space-science bootstrap cycle by keeping space science, thruster fuel, thruster oxidizer, and fluid barreling free of dependency planet discovery prerequisites.
    - Cleaned Frozeta/Foliax/Secretas discovery techs against vanilla and Muluna bootstrap support prerequisites while preserving the authored Pyraxis survey/discovery order.
  Bugfixes:
    - Rebuilt the final dependency-tech contract pass so IPO stops broad-rewriting normal planet-mod science requirements while still adding survey and planet-discovery gates.
    - Fixed post-1.6.8 regressions around Secretas/Frozeta steam recycling, Tellus transport belt capacity, Project Diesel Dragon, Project SeaDragon, Foliax promethium/productivity links, Muluna rocket-part productivity, Flamethrower, Agriculture, Mining Productivity 1, Recycling, and the Muluna thruster-fuel bootstrap.
    - Kept Shattered Planet Approach and the real Shattered Planet as separate Terminus nodes.
  Changes:
    - Dependency tech cleanup is now more targeted: it removes impossible cross-system/self-locking prerequisites but preserves local science packs unless a real bootstrap loop exists.

Version: 1.6.8
Date: 2026-06-24
  Bugfixes:
    - Fixed Skewer Shattered Planet starmap handling so the Space Age approach waypoint and the real Skewer planet stay as two visible Terminus nodes instead of being stacked on top of each other.
    - Restored Shattered Planet Approach as the explicit Terminus waypoint before the real Skewer Shattered Planet destination; IPO no longer relabels the approach as the planet.
    - Removed legacy Shattered Planet approach prototypes whose internal name does not contain `approach` but whose localisation still marks them as approach waypoints, preventing duplicate Shattered Planet/approach nodes when IPO is loaded by itself.
    - Forced the real Shattered Planet endpoint to display as Shattered Planet instead of Shattered Planet approach when the dependency reuses the approach localisation on the real location prototype.
    - Fixed direct Solara discovery cycles where local support techs such as Igrys Glassworking could become prerequisites of their own planet discovery.
    - Fixed a Space Science / Muluna / Gleba / Tellus bootstrap technology cycle.
    - Biochamber late Rubia prerequisite cleanup now runs directly inside the final core utility validation contract.
    - Reworked the final dependency-technology cleanup so non-IPO planet-mod technologies are not left gated by unrelated IPO chapter science packs after science compression runs.
    - Restored system-survey prerequisites for installed planet discovery technologies across Solara, Myridian, Viridion, Pyraxis, and Terminus worlds.
    - Fixed Wyrm Specimen / Hydraulic Science ordering so Wyrm Specimen no longer requires the science pack it helps craft, while Hydraulic Science consumers can depend on the science-pack unlock.
    - Cleaned reported locks for Muluna Telescope/Crusher, Pelagos rocket-start and cargo-crate techs, Moshine Maglev, Panglia Focused Gun Turret/Cloning Vat, Vesta discovery, Rubia/Crucible support techs, Maraxis support techs, Secretas belt-capacity support, Shattered Planet isotope support, quality, foundations, utility damage/productivity technologies, and Mech Armor.
    - Fixed the release-validation safety cleanup so it no longer removes legitimate local planet-discovery prerequisites after the final dependency contract pass.
    - Added Muluna's discovery technology to the Solara survey gate contract.
    - Added an audit-file repair pass for false-positive OK entries: Muluna Telescope over-gates, Panglia Crusher's wrong Muluna prerequisite, Foliax Exodus missing Foliax, Ribbonia thrower chain, Maraxis discovery/research-vessel/sonar, Shattered Planet discovery/isotope working, Vesta biorecycling spillover, and Crucible/Rubia productivity links.
    - Added a last-mile system-survey prerequisite pass immediately before release validation so Tellus, Pelagos, Vesta, Shchierbin, Corrundum, Terra Palus, Cubium, Cerys, and other installed planet discoveries keep their authored IPO survey gates.
    - Added release validation for required system-survey gates on installed planet discovery technologies.
    - Fixed final survey-gate validation so it repairs missing survey prerequisites before checking them, preventing Tellus/Pelagos/Vesta-style gates from failing load after late cleanup.
  Changes:
    - Added a startup setting to keep Epic and Legendary quality on the vanilla-style progression path by default; disabling it allows the harder IPO chapter-gated quality path.
    - Added Shattered Planet approach prototype candidates to the Terminus route/layout contract for packs that expose only the approach endpoint.

Version: 1.6.7
Date: 2026-06-14
  Bugfixes:
    - Fixed Muluna Telescope being compressed behind Pyraxis science.
    - Fixed Pelagos Project Diesel Dragon / rocket-start support being compressed behind Myridian science.
    - Fixed Moshine Maglev Trains and Panglia Focused Gun Turret support still requiring Myridian science.
    - Hardened Vesta discovery/support cleanup against Rubia, Aquilo, Paracelsin, Crucible, Viridion, and Cryogenic gates.
    - Fixed Corrundum and Shchierbin discovery/support technologies still requiring Myridian science.
    - Reconnected Wyrm Specimen research to the Hydraulic Science Pack / Pelagos branch.
    - Reconnected Planet Crucible Emulsion Processing to Planet Crucible discovery.
    - Fixed Toolbelt Equipment and Mech Armor being compressed behind Myridian science.
    - Hardened Tellus science-pack support technologies against Myridian science locks.
    - Added additional Shattered Planet prototype-name candidates, including the bare `shattered_planet` endpoint used by some Skewer packages.
  Changes:
    - Expanded final cleanup from exact technology-name lists to local planet/support tokens for Muluna, Moshine, Panglia, Pelagos, Vesta, Corrundum, Shchierbin, Tellus, Toolbelt, and Mech Armor support.

Version: 1.6.6
Date: 2026-06-14
  Changes:
    - Switched the Pyraxis Castra dependency from the original Castra package to the semi-maintained Castra Prime fork (verified against castra-prime 0.8.2).
    - Updated user-facing Pyraxis documentation text to refer to Castra Prime while keeping internal route/location identifiers pointed at the Castra planet prototype.
  Compatibility:
    - Replaced the hard dependency `castra >= 0.5.4` with `castra-prime >= 0.8.2`.

Version: 1.6.5
Date: 2026-06-14
  Bugfixes:
    - Fixed Pelagos rocket-start support technologies still being allowed to require Myridian science.
    - Fixed Panglia Cloning Vat support still being allowed to require Myridian science.
    - Fixed Rabbasca local support technologies retaining Pelagos/Myridian-later prerequisites during final-fixes cleanup.
    - Added defensive final validation cleanup so Rabbasca/Igrys/Moshine/Panglia support technologies are corrected before validation fails.
    - Hardened Vesta discovery/support cleanup so Vesta cannot remain behind Rubia, Paracelsin, Planet Crucible, Viridion science, or Cryogenic science.
    - Added defensive final validation cleanup for Vesta/Pelagos/Panglia support technologies before validation fails.
    - Moved Prosephina before Lemures in the Terminus discovery contract and local route chain.
    - Fixed the Prosephina -> Muluna Telescope -> Interstellar Science Pack -> Prosephina technology cycle.
  Changes:
    - Added effect/recipe-based cleanup for support technologies whose technology names do not directly include the target planet name.
    - Kept 1.6.4 Myridian/Aquilo bootstrap fix unchanged.

Version: 1.6.4
Date: 2026-06-14
  Bugfixes:
    - Fixed Aquilo being locked behind itself through Myridian science requiring cryogenic science or Aquilo outputs.
    - Removed the Aquilo/cryogenic ingredient slot from the Myridian system science recipe integration.
    - Added release validation so ipo-myridian-science-pack cannot require Aquilo, cryogenic, or lithium bootstrap ingredients again.
  Changes:
    - Kept 1.6.3 route, starmap, and research-tree deadlock fixes unchanged.

Version: 1.6.3
Date: 2026-06-14
  Bugfixes:
    - Fixed Moshine being indirectly blocked by Coal Liquefaction requiring Myridian science.
    - Fixed Cerys being blocked by Myridian Frontier Survey instead of staying on the Fulgora/Cerys branch.
    - Fixed Vesta being blocked behind Rubia, Paracelsin, and Planet Crucible.
    - Fixed Rubia and Planet Crucible requiring Viridion science before Viridion science could be produced.
    - Fixed the release-validation guard so Planet Crucible may correctly stay after Rubia without being treated as an impossible Crucible prerequisite.
    - Fixed Lemures, Dea Dia, and Prosephina mutual discovery loops.
    - Fixed Aquilo/Pelagos bootstrap helpers such as asteroid reprocessing, captivity, fish breeding, and Pelagos exit support being pulled behind Myridian science.
    - Fixed Shattered Planet disappearing when the dependency's only endpoint was the Shattered Planet Approach marker.
    - Protected Moshine maglev, Panglia focused gun turrets, transport belt capacity, lightning collector, personal roboport MK2, energy shield MK2, advanced asteroid processing, module 3, coal liquefaction, captivity, and fish breeding from unnecessary Myridian or later chapter science gates.

Version: 1.6.2
Date: 2026-06-14
  Bugfixes:
    - Fixed Solara-local worlds and support technologies such as Moshine and Panglia being compressed behind Myridian science.
    - Protected Biolab, Cliff Explosives, Artillery, Tesla Turret, Rocket Turret, and related first-three-planet utility/combat technologies from Myridian or later chapter science gates.
    - Added validation so Solara-local technologies cannot be pushed behind Tellus, Pelagos, Aquilo, Myridian, or later chapter science again.
    - Reduced visual crossing between Frozeta, Castra, and the Pyraxis System label in remote view.
  Changes:
    - Folded the Pyraxis hazard-cluster layout polish into the 1.6.2 release line.
    - Polished the Pyraxis hazard cluster so Secretas, Frozeta, Foliax, Tiber, Tenebris, and Castra wrap around the Pyraxis System as a cleaner orbital crescent.
    - Kept all Pyraxis routes, unlocks, science requirements, and dependencies unchanged.

Version: 1.6.1
Date: 2026-06-14
  Bugfixes:
    - Protected core utility technologies such as Stack/Bulk Inserter from late IPO chapter science compression.
    - Removed Tellus, Pelagos, Aquilo, cryogenic, and later chapter science requirements from standard first-three-planet utility unlocks whose recipes still use ordinary materials.
    - Added release validation so these core utility unlocks cannot be pushed behind Myridian, Viridion, Pyraxis, Terminus, or late planet science loops again.
  Changes:
    - Kept chapter science integration and route/starmap geometry unchanged from 1.6.0.

Version: 1.6.0
Date: 2026-06-12
  Major Features:
    - Added the System Science Integration pass so IPO system science packs now pull in real chapter-world outputs when those planet packs are present.
    - Added chapter reward technologies for Solara, Myridian, Viridion, Pyraxis, and Terminus so each system science pack now gates a visible mastery reward.
    - Upgraded the IPO Campaign Board into an objective board that shows required anchor worlds, support worlds, system science status, chapter reward status, and the next unlock target.
  Changes:
    - System science recipes still keep their chapter milestone role, but now add safe world-specific ingredients from the matching chapter instead of being only vanilla science-pack bundles.
    - Added guarded ingredient discovery for supported planet science packs and signature materials, with fallbacks so missing optional outputs do not break data loading.
    - Added a 1.6.0 progression audit guard for chapter reward technologies and their chapter science requirements.
    - Updated the Mod Portal description to clarify that IPO is a curated non-K2SO Space Age planet-pack campaign organiser, distinct from heavier K2SO mega-pack bridges.
  Bugfixes:
    - Added duplicate protection for dynamically-added system science recipe ingredients.
    - Kept survey technology costs stable while changing only the crafted system-pack recipes and new reward technologies.

Version: 1.5.0
Date: 2026-06-07
  Major Features:
    - Released the Pyraxis Expansion Pass, expanding the Pyraxis hazard branch with Castra, Tenebris, and Tiber support.
    - Added curated compatibility for Castra, Tenebris Prime, and Factorio Tiberium as Pyraxis hazard-branch worlds.
  Changes:
    - Reworked Pyraxis routing so the slipstream has a single local entry connection.
    - Arranged the Pyraxis hazard worlds into a wrapped local cluster around the Pyraxis System.
    - Added asteroid spawn definitions to IPO-authored slipstream and interstellar routes where needed.
    - Reworked Pyraxis progression to keep Frozeta as the local gateway while Castra anchors the Tenebris and Tiber branch.
  Bugfixes:
    - Protected Frozeta, Secretas, Foliax, Castra, Tenebris, and Tiber discovery technologies from late science-compression loops.
    - Protected Aquilo from being pulled behind Tiber, Castra, or Tenebris progression.
    - Pruned stale direct Pyraxis route pairs so old saves cannot keep bypass routes into the new branch.

Version: 1.4.5
Date: 2026-06-03
  Changes:
    - Moved the Myridian cold-frontier order to Tellus -> Pelagos -> Aquilo, matching the default Tellus/Pelagos startup settings that make those worlds prerequisites for Aquilo.
    - Kept Pelagos as the branch point for Vesta and the Terra Palus -> Shchierbin -> Corrundum -> Cubium detour.
    - Shortened and pulled in the Corrundum -> Cubium detour so Cubium no longer sits over the Myridian Slipstream marker.
  Bugfixes:
    - Protected Tellus, Pelagos, and Aquilo discovery technologies from late-world Rubia/Crucible/cryogenic-style science loops.
    - Protected the early cold gateway technologies from IPO science compression.
    - Pruned stale Aquilo-first route names and route pairs so old saves cannot keep Myridian Slipstream -> Aquilo or Aquilo -> Tellus bypasses.

Version: 1.4.4
Date: 2026-06-02
  Bugfixes:
    - Fixed Aquilo discovery being pulled behind impossible Rubia/Crucible late-world science loops from optional planet science packs.
    - Protected Aquilo discovery from IPO science compression so Aquilo remains the first Myridian entry target.
    - Added a release validation guard for the Aquilo entry contract.
  Changes:
    - No starmap route geometry changes.

Version: 1.4.3
Date: 2026-05-31
  Locale:
    - Added Russian locale coverage contributed by the community for IPO technologies, science packs, space locations, tips-and-tricks pages, settings, and the Campaign Board UI.
    - Added Russian locale coverage for the Crucible approach helper labels.

Version: 1.4.2
Date: 2026-05-26
  Changes:
    - Moved the first outer-board entry from Fulgora -> Viridion Slipstream to Fulgora -> Solara Slipstream so Solara is the first intended post-Fulgora interstellar stop.
    - Preserved the downstream slipstream backbone as Solara -> Myridian -> Viridion -> Pyraxis -> Terminus.
    - Added asteroid spawn definitions to IPO-authored slipstream and interstellar routes by cloning appropriate Space Age route profiles, so the routes are no longer empty transit lanes.
  Bugfixes:
    - Pruned stale Fulgora -> Viridion bypass routes so old saves cannot skip Solara after migration refresh.

Version: 1.4.1
Date: 2026-05-26
  Bugfixes:
    - Updated the Forgeworks Core dependency baseline to forgeworks-core >= 0.2.4.
    - Corrected Shattered Planet icon namespace handling so IPO references skewer_shattered_planet directly instead of the separate asset-pack namespace.
  Changes:
    - Polished Terminus/Shattered Planet lane cleanup so Shattered Planet Approach no longer overlaps Terminus Slipstream and duplicate dependency aliases stack into one visible endpoint.
    - Kept the 1.4.0 Campaign Board feature set unchanged.
    - Kept the accepted 1.2.0 public starmap frozen: no route rewrites, no hub movement, and no new route geometry.

Version: 1.4.0
Date: 2026-05-24
  Major Features:
    - Added the Interstellar Campaign Board as an in-game top-left mod GUI button.
    - The board summarizes chapter progress, current survey target, chapter science status, major worlds, and Terminus Endgame Bridge status.
  Changes:
    - Kept the accepted 1.2.0 public starmap frozen: no route rewrites, no hub movement, and no new route geometry.
    - Updated release notes, portal text, README, roadmap, and support docs around the Campaign Board milestone.
  Bugfixes:
    - Added a safe 1.4.0 migration refresh and stale campaign-board GUI cleanup.

Version: 1.3.0
Date: 2026-05-24
  Major Features:
    - Added the Terminus Endgame Bridge as the first public 1.3.x progression feature.
    - The bridge sits after Survey: Terminus Deep Space and acts as a readable final gate for omega, Nexus, singularity, transceiver, wormhole, stargate, void, and other finale-style technologies when those technologies are present.
  Changes:
    - Kept the accepted 1.2.0 public starmap frozen: no trunk rewrite, no hub relocation, and no route redesign.
    - Preserved chapter-aware science compression and Terminus science-card cleanup.
    - Cleaned the shipped changelog to the actual public Mod Portal release entries only: 1.3.0, 1.2.0, 1.1.2, 1.1.1, 1.1.0, 0.47.1, 0.47.0, and 0.46.7.
  Bugfixes:
    - Added a safe 1.3.0 migration refresh for technologies, recipes, and technology effects.

Version: 1.2.0
Date: 2026-05-24
  Major Features:
    - Released the Science Compression Polish line for the authored multi-system campaign spine.
    - Added chapter-aware compression for large late-research science-pack walls into IPO system science packs.
    - Locked the accepted smooth starmap baseline: Lignumis -> Nauvis -> Fulgora -> Viridion Slipstream, with Solara, Myridian, Pyraxis, and Terminus arranged as readable authored chapter systems.
  Changes:
    - Removed Calidus Slip Stream from the public route contract.
    - Kept Cerys as Fulgora -> Cerys only.
    - Kept Aquilo inside the Myridian route chain.
    - Kept Planet Crucible behind the Foliax -> Crucible Orbit/Approach -> Planet Crucible gate.
    - Cleaned the Solara local route chain and Myridian detour so the public starmap reads as smooth, non-overlapping lanes.

Version: 1.1.2
Date: 2026-05-19
  Changes:
    - Continued the Razi-style hard-sync rewrite work before the 1.2.0 release candidate line.
    - Kept the five chapter systems, survey technologies, chapter science packs, and supported planet roster on the same canonical progression surface.
    - Prepared the package for the later starmap readability and science-compression polishing work.

Version: 1.1.1
Date: 2026-05-19
  Bugfixes:
    - Maintenance release for the 1.1.x hard-sync rewrite line.
    - Refreshed technology, recipe, and starmap effects for safer upgrades from the 1.1.0 baseline.
  Changes:
    - Kept the canonical chapter systems, survey technologies, and chapter science packs aligned with the public supported-pack surface.

Version: 1.1.0
Date: 2026-05-19
  Major Features:
    - Released the Razi-style hard-sync rewrite foundation for IPO progression.
    - Consolidated authored chapter systems, survey technologies, chapter science packs, and route ownership into a canonical progression layer.
  Changes:
    - Reframed Solara, Myridian, Viridion, Pyraxis, and Terminus as the public five-chapter campaign spine.
    - Prepared the mod for the later 1.2.0 starmap readability and science-compression polish release.

Version: 0.47.1
Date: 2026-04-29
  Changes:
    - Added Muluna bootstrap compatibility and early recovery-path guidance so Muluna reads as an expeditionary bootstrap stop rather than a blind one-way landing.
    - Kept the curated hard-dependency planet pack and authored five-chapter starmap framework.
    - Preserved the 0.47.0 starmap readability pass and public supported-pack framing.

Version: 0.47.0
Date: 2026-04-29
  Major Features:
    - Released the starmap readability pass for the public rewrite line.
  Changes:
    - Kept the curated dependency baseline from the 0.46.x release branch.
    - Preserved the authored five-chapter system layout and cleaned Pyraxis lane.
    - Added cleaner Myridian and Terminus world spreads and reduced slipstream label pressure around busy chapter entrances.

Version: 0.46.7
Date: 2026-04-22
  Changes:
    - Final cleanup build on top of the authored-system rewrite line.
    - Removed stale Hyarion references from the shipped Pyraxis lane.
    - Aligned public package text with the actual supported dependency set.
    - Kept the Razi-inspired chapter-system layout, chapter science packs, final starmap polish, and refreshed public release thumbnail.