FTDNA has just changed the haplogroups of a whole passel of men without blinking an eye. The change involves all of the men whose haplogroups have been tested in the Ulster Heritage Group Mag Uidhir I and Mag Uidhir II. It generally changed many more men than that because R1b1b2a1b5 is one of the most common haplogroups on the west coast of Scotland, the western Isles and Northern Ireland.
It changed for all of those mentioned above from R1b1b2a1b5 to R1b1a2a1a1b4, which you will all agree is one heck of a change. Jim McKown and I have a letter c suffix following the 4. This haplogroup change may be another lab goof or a posting goof, because the underlying SNP results did not change a whit. It may be because their chief scientist at the Houston lab has left on vacation, that the people at the con have made a mistake. Whatever, I have contacted FTDNA and should receive an reply
next week. One other possibility is that FTDNA is initiating the change to the most recent NIST standards. When FTDNA replies, I will print the answer here.