Hey UK_John,
It sounds like you've reached the end of the current content. 2.2.1 is a minor fix from 2.1.1. Chapter 3 will be released in a few months.
Thank you for your support.
Ah, not an update but a fix. Thanks. So any idea of next update then? After finishing Petal Among Thorns, it's frustrating not to complete the follow-up story!