CentOS 8 removed, CentOS 9 added yet CentOS 7 remains?

Question

In lightsail We note that CentOS 9 steam has been added to LightSail on the sly with the complete removal of CentOS 8. However, CentOS 7 remains?

What is the status with relation to CentOS 8 in lightsail?
 
We as a company need to reassurance as given the above move by AWS with no mention anywhere on the LightSail news blog has got us spooked even more so.

Answer

Indeed, the documentation here lists CentOS9 and erases CentOS8.  
This leads me to believe that CentOS8 itself may not be able to create a new one with lightsail.  
Well, I would not be surprised if CentOS8 itself is no longer available as it is nearing EOL. (Although I wonder why CentOS7 is still around...)  
https://lightsail.aws.amazon.com/ls/docs/en_us/articles/compare-options-choose-lightsail-instance-image

CentOS 8 removed, CentOS 9 added yet CentOS 7 remains?

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