@wilkinsona I am sorry to report this through a GH issue but I didn't know how else to reach out. Sorry.

I noticed that in recent months it has been a bit difficult to predict when certain releases will be cut because the calendar is often rather empty.

I am primarily tracking Spring Boot. I understand the calendar fetches release and milestone data from your GH projects. Given that many milestones at https://github.com/spring-projects/spring-boot/milestones have no due date, it makes sense that there are no Boot items in the calendar.

Is this just a temporary situation? Or was it a conscious decision that many projects don't announce milestone due dates anymore?