Download Latest Version September 23, 2025 source code.tar.gz (481.2 MB)
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README.md 2025-09-23 3.7 kB
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Note - releases no longer include binaries in the release notes. Download the latest version here: https://docs.flatredball.com/flatredball

Breaking Changes

No breaking changes 🥳

Biggest Changes

FRB Editor's embedded .achx editor has gotten a huge boost! Lots of properties that were read-only for previewing are now fully editable including: * Creating new Animations * Creating new frames * Modifying the coordinates of existing frames * Snapping * Drag+move of frames * Editing frame time, individual and in bulk * Improved display of frame information in tree view

23_06 23 45

FRB Editor

  • Fixed IGumScreenOwner not being assigned (thanks @mfigueirido )
  • Faster wildcard scanning speed on project startup (thanks @mfigueirido )
  • Fixed Gum codegen bug on project switching
  • Added support for Gum container blend
  • Removed code that was overwriting the variable texture offsets when rendering maps, used to eliminate seams and adjacent pixel bleeding
  • Fixed possible crash with duplicate csproj items
  • Removed unnecessary .csproj saving when updating .xnb links - speeding up startup and content pipeline builds
  • Fixed incorrect ToLower calls on xnb reference adding to csproj, reducing csproj churn
  • Improved treeview behavior when clicking, moving the mouse slightly, then ending up on the same node
  • Platformers can now use AxisAlignedRectangle subcollision
  • Fixed Sprites with tunneled Current Chain Name not allowing setting this value from animations chains defined in the original entity
  • Fixed "Finishined" typo in project compilation (thanks @AristurtleDev )
  • Variants are now code generated in "file" alphabetical order
  • File builds are no longer performed in parallel since that can cause soffice.exe to fail
  • Added more informative exception when generating Gum projects that are missing default state
  • Editor now properly generates code for Gum XUnits and YUnits, avoiding obsolete types
  • Added support for editing Spine .atlas files in the new AnimationEditor

Edit Mode

  • Sprites that are attached to parents but use relative positions from animations can no longer be moved. This removes confusing behavior where a Sprite is moved but then it snaps back to its original position when the app runs.
  • Fixed copy+paste not correctly assigning Z value

FRB Engine and Code-related

  • Added AudioManager.IsSoundEffectInstancePlaying
  • Xbox360Gamepad AnalogOnThreshold is now a property which can be set (thanks @mfigueirido )
  • ToastManager no longer tries to create toast if no visuals exist, fixing crashes when copying objects in edit mode
  • Updated to support ListBox IsEnabled=false from GumForms by adding IsEnabledRecursively
  • FRB MonoGame .NET 6 engines are now nullable enabled
  • Added offset parameters to TileNodeNetwork CreateFrom(LayeredTileMap...) (thanks @mfigueirido )
  • Added new unit test project
  • Improved Polygon vs Polygon and Polygon vs AARect collision by using SAT. This handles lots of edge cases that would fail previously, and likely is faster too (thanks @bransay )
  • Improvement in collision across lots of methods by making Segment.DistanceTo no longer create segments (thanks @mfigueirido )
  • Improved velocity assignment when bouncing with acceleration and drag
  • FlatRedBall no uses private assets, so MonoGame can be independently updated per game

New Project Templates

  • Added new .NET 9+ project template

Full Changelog: https://github.com/vchelaru/FlatRedBall/compare/Release_June_11_2025...Release_September_23_2025

Source: README.md, updated 2025-09-23