From Sefer Ha-Hayim:
R. Yehuda Henkin wrote a lengthy analysis of seating practices at weddings in the first volume of Bnei Banim (no. 35; dated 2 Adar 5737 [1977]). In it, he concluded that... In the most recent volume of Bnei Banim... R. Henkin partially retracts his earlier ruling... (full text here)