We currently do not observe the property aspects of the yovel year because, as I understand it, it's not practical until the ingathering of the exiles. (We don't own all the affected land now so ...
When is Yovel? Is it in the 49th year of the shmita cycle, or the 50th? And if it is in the 50th, when is the next shmita, in the 56th or 57th year? What is the practice in modern day Israel?