Also, they broke their promise from last year, saying that they'd grandfather-in all early adopters, as long as they don't cancel:

If such change to Individual plans is to occur, we plan to grandfather-in all early adopters (meaning all current and future paid customers, up until this change) allowing them to keep their existing subscription price as long as they don’t cancel it.

https://blog.kagi.com/status-update-first-three-months#futur...

Now they changed it to only the current billing period.