You’re asking about the OS for Organelle 1, right? (based on your question from yesterday on another thread)
If so, the current Organelle 1 OS is version 4.0: https://cgdiskimages.nyc3.digitaloceanspaces.com/OG1-v4.0.img.zip
Follow update instructions here in Section 7.1 of the Organelle 1 Manual.