Is it cheating to give someone my old exam revision notes? Last year I completed an exam at University and a friend is doing the same exam/class this year. 
Would it be cheating  if I gave her my revision notes of the semester (written before I did the exam)? They don't have any exam-related answers, just summarized lecture notes. 
I read that it is cheating if a student has an unfair advantage over other students. 
I don't want to get her or myself in trouble.

Thank you.
No, it is not cheating.


It's also not cheating for them to go to the library and find a particularly well written textbook that no-one else had.
It's not cheating for them to hire a tutor.
It's not cheating to share your revision notes with other students before your exam.
It's not cheating to do a unit completely including exam, then repeat it in the next year to get a better mark (In fact, this is normal if you fail)


Most would say not even cheating (or facilitating) to tell them about the exam in your year.
E.g. along the lines of "I focused my study too much on the topology part of the unit, but there was only 1 topology question in the exam. But I don't know how it will be this year."

Some would even argue that its not cheating to share with a past student a copy of last years exam, with fully worked solutions. On the basis that the instructor is not going to use the same exam twice. This is a bit more dubious though.

At the end of the day, the purpose of the exam is to test how well they know the content.
So the context of an unfair advantage is one that lets them do well in the exam, without learning the content.
No one cares how they learned the content.
They might have gone to lectures, read the textbook, watched youtube lectures from other universities, read notes from a friend, or even have been working in the field for decades and just be attending the exam to get the paper to prove it.
No one is assessing an unfair advantage at learning as cheating.