Changelog

This page contains the changelog for Principia.

For versions prior to the source code release, please see Old Changelog.

202X.XX.XX (future release)

• Increase maximum Max value of Condenser to 32
• Increase maximum Weight multiplier to 2.5
• Fix Sqrt gate outputting NaN from out-of-bounds values
• Fix Linear decay output value not being clamped
• Fix plastic density being incorrectly applied on Android
• Update dependency library versions

*(reminder: version code needs to be bumped twice for next release due to 2024.07.12-fdroid)

2024.07.12

News article - Release

• Fix VSync being disabled on Android (oh no)
• Fix not being able to play levels from the browser on Android
• Fix GLEW crashing the game when running the game with SDL2's Wayland video driver
• Fix orphaned prompts crashing the game when trying to close them
• Fix building Principia on Alpine-based Linux distributions

2024.06.28

News article - Release

• Merge sound data directories across platforms (makes sounds stereo on Android and fixes some missing sound files)
• Fix crash when attempting to save the state of a level with a LuaScript in it
• Revert to old colour picker on desktop (makes it easier to select Pixel alpha)
• Allow changing the community site domain at runtime
• Fix issue when playing from different community hosts during same gameplay session
• Fix some (not all) issues when window is resized
• Fix building with GCC 14
• Various code cleanups
• Lua:
  • Add entity:set_fixed_rotation
  • Add entity:is_fixed_rotation
  • Add entity:apply_force
• Desktop:
  • Allow storing user data portably on all desktop platforms (not just Windows)
  • Show an error message when a segfault crash happens
  • Allow toggling fullscreen with F11
• Windows:
  • Fix installer installing duplicate data-shared folder
  • Fix segfault on very old unsupported OpenGL versions (it gives a more friendly error instead)
• Linux:
  • Don't use Debian's broken SDL2 library for AppImage
  • Allow enabling OpenGL ES at compiletime (USE_GLES)
• Android:
  • Update SDL2 to latest 2.30.3
  • Switch to CMake
  • Fix crash when opening puzzle levels
  • Drop support for Android KitKat (5.0 Lollipop is now minimum)
• macOS:
  • Experimental port to macOS now available

2024.02.29

News article - Release

• Give the Full health command pad a unique texture
• Revamp networking protocol
• Higher quality sandbox menu icons
• Misc. code cleanups and unused code removal
• Android:
  • Now available on F-Droid!
  • Fix x86_64 builds crashing
  • An x86_64 native library is now also provided
• Linux:
  • AppImage builds
  • Fix touchscreen input to work like on Windows (hopefully?)
  • Fix Quickadd dialog messing up on some DEs
• Haiku:
  • Initial port merged and is available to compile in the source tree

2023.12.26 (1.5.2 Beta 2023-12-26)

News article

• Sticky note limit has been raised to 32
• Limit of fluid particles has been increased
• Less risk of the game crashing when changing strength of connections
• Switch to CMake for the build system
• Lua:
  • string and table classes are enabled by default, alongside listening on input
  • bit32 is now available
  • Fix error(nil) crashing the game
  • Block unsafe Lua functions
  • Add entity:is_hidden
  • Add world:set_gravity
  • Add entity:set_angle
• Desktop:
  • Upgrade to GTK3
• Windows:
  • Builds are now linked against UCRT
  • Add portable build (saves user data next to executable, a helper script for running community levels is provided)

2023.03.10 (1.5.2 Beta 2023-03-10)

News article

• Add ability to toggle GUI with F2
• Use in-game ui::message instead of system toasts on Android (fixes failing game:message)
• Fix various bugs and freezes on Windows (Ball pipeline not working, Level chunk freeze...)
• Add ability to toggle object lock on N
• Removed object and item help texts, it will now open the Wiki instead

2022.12.31 (1.5.2 Beta 2022-12-31)

News article

• First open source release!
  • Removed DEMO mode, LITE mode and license verification, now completely free and open source.
• New default community site! (principia-web)
  • Communicates with the community site over HTTPS now
  • The game can now play levels from any domain (e.g. the official community site archive)
• Linux support!
• Previously unused objects now available in the sandbox menu (Angular Damper, Gear, Magnet, Electromagnet and Separator)
  • These objects are partially unfinished and may have bugs or cause crashes. Be careful with them.
• Separator colour can now be configured through config menu
• Items no longer need to be unlocked through the adventure mode
• Object and item help text updates
• 64-bit builds available
• Desktop:
  • Window can now be resized
• Windows:
  • Installer improvements
• Android:
  • Dialog UI update (Holo -> Material)
  • Removed Facebook analytics (yuck)
  • App data now stored in scoped app storage (new API/Google Play requirement)
  • Fixed SFX Emitter dialog