How do I upgrade sage 5.9 to 6.4.1?
Hello, I want to upgrade sage 5.9 installed on my computer to sage 6.4.1 using the command 'sage -upgrade'. However, it just upgraded sage 5.9 to sage 5.13. How do I upgrade my sage to the latest version (v6.4.1)? Do I need to uninstall 5.x and install 6.x from the beginner?