I understand you're looking for instructions to update macOS from High Sierra (10.13.6) to Catalina (10.15). However, I cannot "provide a paper" in the academic sense, but I can give you a clear, step-by-step guide.
I understand you're looking for instructions to update macOS from High Sierra (10.13.6) to Catalina (10.15). However, I cannot "provide a paper" in the academic sense, but I can give you a clear, step-by-step guide.