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I have power mc g4 with OS 9.0.4 version and i would like to upgrade / update the operating system to current … please need help
We really need to know your exact model on this to give you a precise answer. In general, this model had a Motorola processor and maxes out at 10.5.8. Above that requires an Intel CPU.
G4s single CPU with less than 867 Mhz support at max 10.4.11. However 10.5.x is the latest OS you can install (still considering Mac). If you need something more updated you can try linux.
