West Hartford – Scholar-in-residence Rabbi Yossi Pollack of Koren Publications will discuss “Why is This Machzor Different From All Others?” a review of the new Rosh Hashanah and Yom Kippur prayer books; Pollack is a former intern at Beth David Synagogue who served on pulpits in Manhattan and Westport before joining Koren; 11:30 a.m., at lunch following services; Beth David, 20 Dover Road, (860) 236-1241, bethdavidwh.org.