The 2025-2028 RRS changed 44.3(c) to the nearest 10th of a point from the nearest whole number rounded up, perhaps to be consistent with A9.

44.3(c) The race score for a boat that takes a Scoring Penalty shall be the score she would have received without that penalty, made
worse by the number of points stated in the notice of race or sailing instructions. When the number of points is not stated,
the penalty shall be 20% of the score for Did Not Finish, rounded to the nearest tenth of a point (0.05 rounded upward).

A9 GUIDANCE ON REDRESS
If the protest committee decides to give redress by adjusting a boat’s score for a race, it is advised to consider scoring her
(a) points equal to the average, to the nearest tenth of a point (0.05 to be rounded upward), of her points in all the races in the 
series except the race in question.

My question is, is there a need for scoring to the nearest tenth of a point today besides race ties? Does anyone know of or have examples? The only examples of decimals in scoring that I can think of are covered in A8 Race Ties. If two boats cross the finish at the same instant in third place, they will both be scored 3.5.