As far as I am aware, this list below are the changes that I am aware of in GM and this mentioned summit isn’t going to be one of the ones to be deleted.
Carn Liath GM/ES-020 is replaced by Creag an Dail Bheag (new GM/ES Marilyn).
Beinn Dearg GM/SS-067 is replaced by Creag na h-Eararuidh (new GM/SS Marilyn).
GM/WS-053 - summit relocation from Maoile Lunndaidh to Creag Toll a’Choin. No deletion or addition required as col between both these summits are within activation zone. I think there similar SOTA summits in GM where the summit location has changed, but SOTA reference number can stay the same due to old and new summit locations being within activation zone of each other.
Creag an Amalaidh - new Marilyn in GM/NS.
Cruim Leacainn GM/WS-344 - no longer a Marilyn.
Troweir Hill GM/SS-257
Sithean Mor - New Marilyn in GM/WS,
Kirriereoch Hill - New Marilyn in GM/SS.
Stob na Boine Druim-fhinn G/SS-089
Beinn Dearg - new Marilyn in GM/NS
White Hill is now twinned with Hightown Hill GM/SS-273 and according to Hill-Bagging White Hill is now the Marilyn and Hightown Hill GM/SS-273 is the twin Hightown Hill (hill-bagging.co.uk) White Hill (hill-bagging.co.uk). I think from this Hightown Hill GM/SS-273 would need to be deleted and White Hill becomes a new SOTA summit in GM/SS.
I also know that although this isn’t affected as such in terms of a SOTA point of view, but Cnoc Coinnich GM/SS-046 has increased in height and become a Corbett, see GM Marilyn is now a Corbett - Summit Info - SOTA Reflector. I am sure that heights have changed for plenty of other GM SOTA summits also due to more accurate surveying in recent years.
I am sure that the GM - Association Manager Andy MM0FMF will point out any changes that I’m not aware of when he announces the changes officially.
Jimmy M0HGY