Thanks Colin,
I've found a way with a bit of programming skill to effectively get around the long manual labour of doing a line by line comparison. Getting the data into a comparable format still took about an hour.
I have begun to do some checking of the corrections I listed in other threads.
STAMER baronets - title has had B 1983 status removed after discovery of two possible heirs (Julian & Robin). Whilst Debrett's database gives no dates of birth, Kershaw is presumably confident they were born after their parents marriage.
HANSON baronets [1918] - my find of an heir born 2011 seems to be confirmed, even though I expressed some scepticism about my find after checks in social media.
I think all the other corrections that were pointed out have been made.
Amongst the Baronets (and not Peers)The following titles moved from B 1982 to A 1982 as their youngest heir turns 40 this year: Blunden, Booth, Grotrian, Macready, Orr-Ewing 1886, Salt 1869, Shuckburgh, Williams 1866, Young 1945
The following titles have acquired a Kershaw status when they previously had none. This is usually due to the second youngest heir having been born in 1982, and so there will only be one heir born after 1982 now, which automatically will acquire B status.
Beckett (B 1987), Forbes Adam (B 1989), Jaffray (B 1990), Markham (B 2003), Milburn (B 2011), Munro 1634 (B 1990 (to dorm)), Tyrwhitt (B 2019), White 1904 (B 2021)
Amongst the Baronets who are also peersThe following titles moved from B 1982 to A 1982 as their youngest heir turns 40 this year: Kearley (Viscount Devonport)
The following titles have acquired a Kershaw status when they previously had none: Browne (Lord Kilmaine, B 1987 (to dorm)), Cocks (Lord Somers, B 1995 (to dorm)), Forbes (Earl of Granard, B 1989 (to dorm)), Palmer (Lord Palmer, B 2019), Parnell (Lord Congleton, B 1990)
A further title changed status due to the birth of a new young heir and I didn't note in my annual summary of births, though the birth was posted to the group: Henniker-Major (Lord Henniker) changed from B 1986 to B 2021.
I will investigate all the above titles to see if any heirs have escaped notice.