v3.13.0 (2026-05-24)

• reduce canvas blurriness in some scenarios
• added compatibility for using effects with the restored polygon mode in the Box2D extension
• fixed very slow compilation in projects with a large number of custom blocks

v3.12.0 (2026-03-29)

• fixed TTS extension and some others in Electron apps

v3.11.0 (2026-01-17)

• made packaged projects about 50KB smaller

v3.10.0 (2026-01-01)

• fixed various compiler bugs
• improved frame pacing on windows
• fixed YouTube error 153 in Electron apps

v3.9.0 (2025-10-19)

• new compiler is a bit smarter
• implement the runtime portion of Scratch.external (our external dependency management system for extensions)

v3.8.0 (2025-10-03)

• new compiler https://docs.turbowarp.org/new-compiler
• handle missing assets non-catastrophically - this fixes errors that mention something about fetching from assets.scratch.mit.edu failed

v3.7.0 (2025-08-28)

• improved performance of stamps w/ animated text extension

v3.6.0 (2025-06-12)

• reduced packaged project size by ~400KB
• fixed some large projects not working in some browsers ("Invalid array length")
• fixed performance issues in Animated Text extension when there are a lot of clones being created and deleted
• adds API used by Simple 3D extension to fix performance issues while the mouse is moved while being pressed

v3.5.0 (2025-05-29)

• not much

v3.4.2 (2025-03-12)

• fix text bubble font
• fix compiler bug caused by incorrect variable type assumptions after running block in compatibility layer
• fix interpreter bug caused by recursive procedures and "stop this script" blocks