The Rebbe acknowledges the letter, explaining delays due to publishing efforts. He read the pidyon nefesh of the yeshiva at the Ohel on Yud-Tes Kislev and supports learning the Previous Rebbe’s teachings but refrains from setting a fixed schedule. He blesses the recipient on his granddaughter’s birth and requests a copy of a past letter.
https://www.torahrecordings.com/rebbe/004_igros_kodesh/teves/850