I will be applying to philosophy phd programs after completing my BA in philosophy and while completing a one year masters program (immediately after college) in philosophy. I impressed a certain professor in my third year of college during which I took two classes with her. If I want a recommendation from her is it important that I take another class during my senior year of college so that her opinion of me will be current? My last class with her was in spring of my third year, and I will apply at the end of Fall of my masters program (equivalent to 5th year of college). If I don't take another class with her, there will be applying after three consecutive semesters of not having her.
I understand that the fact that I will have learned more material means that a letter based on later coursework might be stronger. But I'm mainly curious if admissions committees would partially discount a letter because they thought it to be based on 'outdated' (in my case, by a year or two) information.