Are you still wondering about the following questions?

• To Which Version of AOS should I upgrade to from my current version?
• Will it be 1-Click Upgrade or not?
• What are the EOL versions for AOS, Nutanix Files or Prism Central?
• What is my software compatibility?

Answer to above queries and many other queries is one single Link i.e. Upgrade Paths

Here are some snapshots from Tools: