Comment by SirGiggles

Then look back to 2.2.6, it supported up to 6.10. A far cry from only supporting only up to 6.6 so I'm not seeing where they were going with with their initial statement until they define what they mean by stable.

https://github.com/openzfs/zfs/releases/tag/zfs-2.2.6

Edit: changed sentence to make more sense

Edit 2: And if we are to interpret stable as in Linux LTS, then that would be 6.12 which is supported by 2.2.7 as you said