P-61C-1 flight model changed. was there ever any announcement?

Like the title states, when was this flight model changed? it was pretty recent it seems. I’ve noticed it climbs slower now, is faster, has higher ceiling and doesnt overheat.

If there is an announcement of the changes can someone link to it here?

Uh…think they did awhile back in one of the bug/balancing reports

can you find and link to it please? I think it might be in the last few months.

I’m not gonna look though months of bug reports just to find it, would take days.