It’s all the same option. It activates years 1-6 to the best of it’s ability, but admits the years 4-6 are not yet fully released

FYI, Microsoft Activation Scripts has a method to activate extended security updates on Windows 10 machines. This should give you at least another year of updates.

E: It appears that this gives an extra 3 years of updates. I’ll be trying it out tonight on my last W10 machine.

Edit2: If you go this route (as I just did), please also see the FAQ entry here. There is currently a glitch with commercial ESU keys (which this exploit uses) and Windows Update will continue to claim that your device will no longer receive security updates. This is also effecting W10 LTSC systems. However, you can verify that the license key is active through Command Prompt and instructions are given in the FAQ.