A level grades.
I don't believe the students are 6% better or more intelligent, especially with the limitations of teaching during lock down, so it significantly devalues the grades.
In my opinion the grade boundaries should be flexible so, for example, the top 10% of students get an A star, the next 15% get an A, the next 15% get a B (or whatever percentages seem appropriate). That would take into account the effects of lock down, possible variations in the difficulty of the exam papers and so on.