A new configuration pushed is a fairly substantial change to the way the DMR ID is handled by the Pi-Star Config page.
In short – the reasoning behind this is that the way DMR IDs are handled by the networks needs to be understood to get the best out of them.
This network uses either your bare CCS7/DMR ID (7 digits) *OR* an extended ID, your 7 digit ID, with a 2 digit suffix (between 01 and 99).
Specifically BM does *NOT* accept 8 digit IDs. These have worked in the past, but BM sees 8 digits as a base ID, technically speaking BM DMR IDs are 24 bits, when expressed as an unsigned integer (programming term for a positive only number) this provides a range of IDs from 0 (0000000) to 16777215.
Information here is a little sketchy, but it seems that DMR Plus supports CCS7 / DMR ID (7 digits) on all of their masters, and 8 digit (extended) DMR IDs on at least some of their masters (your 7 digit CCS7 ID, plus 1 digit, 1-9).
I believe that they support 7 or 9 digits in a similar way to BM. (I’m going to reach out to the admins there today to make sure).
So why the change – well it’s been on the cards for a while to better support extended IDs when using DMRGateway, AND specifically 8 digit IDs to NOT work on BrandMeister when using hotspot security, so this change helps enforce the use of 7 or 9 digit IDs but not 8 digits on BM.