Issues

• Warp Timer favors the first stuck thread

  Bug

  TurboWarp/scratch-vm#379 · Filter by author nimeratus opened on Oct 5, 2026

• Move pick random optimizations from jsgen to irgen

  performance
  Feature

  TurboWarp/scratch-vm#377 · Filter by author GarboMuffin opened on Oct 3, 2026

• Optimize set pen color

  performance
  Feature

  TurboWarp/scratch-vm#376 · Filter by author GarboMuffin opened on Oct 3, 2026

• Comparing boolean to NaN can be wrong

  Bug

  TurboWarp/scratch-vm#375 · Filter by author GarboMuffin opened on Oct 3, 2026

• Division by a constant negative number can be significantly slower in Chrome

  performance
  Feature

  TurboWarp/scratch-vm#365 · Filter by author GarboMuffin opened on Oct 2, 2026

• Pick random with Infinity as the bounds is not typed as NaN

  Bug

  TurboWarp/scratch-vm#362 · Filter by author GarboMuffin opened on Oct 1, 2026
  1

• Comparisons against Infinity can fail against string "infinity"

  Bug

  TurboWarp/scratch-vm#360 · Filter by author GarboMuffin opened on Oct 1, 2026

• Custom block arguments are not analyzed for side effects

  Bug

  TurboWarp/scratch-vm#357 · Filter by author GarboMuffin opened on Oct 1, 2026

• Compiler fails for a procedures_call block with a "mutation" input instead of a mutation

  Feature

  TurboWarp/scratch-vm#354 · Filter by author TheCommCraft opened on Aug 26, 2026
  2

• Inline numeric fast paths for dynamic comparisons

  TurboWarp/scratch-vm#352 · Filter by author LuYifei2011 opened on Aug 17, 2026

• In compile mode, the behavior of 'broadcast and wait' is inconsistent with 'switch backdrop and wait'

  bug
  TurboWarp/scratch-vm#337 · Filter by author Wxxbjs opened on Apr 26, 2026
  1

• Registering multiple extensions in one file generates flood of extensions after saving and loading again.

  bug
  TurboWarp/scratch-vm#348 · Filter by author Civ3ro opened on Dec 9, 2025
  10

• Serialize Infinity, -Infinity, -0 correctly

  Feature

  TurboWarp/scratch-vm#318 · Filter by author GarboMuffin opened on Nov 16, 2025

• using a (item () of ()) list block in other blocks that expect number values; the code can be optimized

  performance
  Feature

  TurboWarp/scratch-vm#310 · Filter by author 52525rr opened on Oct 22, 2025

• Scratch.external.evalAndReturn enhancements

  Feature

  TurboWarp/scratch-vm#309 · Filter by author GarboMuffin opened on Oct 19, 2025
  1

• Expand the test suite with more real-world-ish projects

  Feature

  TurboWarp/scratch-vm#304 · Filter by author GarboMuffin opened on Oct 9, 2025
  3

• The repeat block can probably be faster

  performance
  Feature

  TurboWarp/scratch-vm#291 · Filter by author GarboMuffin opened on Sep 28, 2025
  1

• Compiler's string -> number conversion has unfortunate side effects with variable monitor rounding

  Bug

  TurboWarp/scratch-vm#287 · Filter by author GarboMuffin opened on Sep 27, 2025

• Runtime script errors should be sent to the GUI

  Feature

  TurboWarp/scratch-vm#278 · Filter by author GarboMuffin opened on Sep 22, 2025

• Optimize More Opcode Types

  performance
  Feature

  TurboWarp/scratch-vm#274 · Filter by author Geotale opened on Sep 20, 2025
  1

• Weird performance results in Faster SHA-256 (611788242)

  performance
  Feature

  TurboWarp/scratch-vm#267 · Filter by author GarboMuffin opened on Sep 20, 2025

• Support passing function directly for dynamic menus

  enhancement
  Feature

  TurboWarp/scratch-vm#266 · Filter by author GarboMuffin opened on Sep 19, 2025

• Stage width/height is set after monitors loaded, supposedly breaks them

  bug
  Bug

  TurboWarp/scratch-vm#261 · Filter by author GarboMuffin opened on Jun 26, 2025
  2

• Update webpack

  Feature

  TurboWarp/scratch-vm#260 · Filter by author SithLor opened on Jun 2, 2025
  2

• getBoundsForBubble causing huge slowdown when a text bubble is already on screen

  performance
  Bug

  TurboWarp/scratch-vm#255 · Filter by author Tacodiva opened on May 5, 2025