Hi Dave.
It's not clear. Especially when you factor in other text from the same Redshift FAQ page you pasted from:
But I just purchased Redshift! Don't worry, your recent purchase included one year of maintenance. You will have access to all the latest builds of Redshift until the one-year anniversary of your purchase. At that time, you will have the option of converting to subscription to gain all subscriber benefits or extend your Annual Maintenance Agreement to a maximum expiration date of August 31, 2024.
Reading the paragraph above from the Redshift FAQ page, it clearly says in the last sentence that I will be able to extend my Annual Maintenance Agreement to a maximum expiration date of August 31, 2024
Taking the second bullet point from the text you pasted, also from the Redshift FAQ page, it clearly says I'll be able to renew my Annual Maintenance Agreement up to August 31, 2023.
The second paragraph you pasted from the Redshift FAQ page says: You can purchase an additional maintenance agreement within three months of your expiration. In other words, if your current term expires in August 1, 2022, you cannot renew prior to May 1, 2022.
The true meaning of this paragraph is not clear. And the true meaning I discovered today, which contradicts other text on the Redshift FAQ page (pointed out above), is that I am not allowed to renew my Redshift licence until August 31, 2024, while other users are. And this is not because of any choice I made, but because I first bought my licence in December.
So in effect, I am not allowed eight months of upgrades. Dave, nothing on the Redshift FAQ page clearly says that.
Matt