Required
Open project Fabric API
Matched file: [1.21.4] Fabric API 0.119.4+1.21.4
Ready to install?
Flashback 0.39.9
Check the game version, loader and dependencies below, then grab this exact release.
Modrinth release
Flashback-0.39.9-for-MC1.21.4.jar
0.39.9
- Game
- 1.21.4
- Loader
- Fabric
- Published
- 13 Sept 2026
- Channel
- release
- File size
- 201 MB
SHA-11173c11d0ad6eaeb436b0e6b718bed5dce1b8342
Where this file goes
Client, server, or both?
Client Required
Dedicated server Do not install
This file is marked client-only.
Dependencies for this release