After his release, he, together with Yuli Kim and Peter Yakir, co-authored an appeal warning against Re-Stalinization. He also assisted Natalya Gorbanevskaya in editing the "Chronicle of Current Events", most notably for issue No. 3 dedicated to the 1968 Red Square demonstration against the Soviet invasion of Czechoslovakia. Through fellow dissident Pyotr Grigorenko, Gabay also became involved in the struggle for the Crimean Tatar autonomy and helped edit its samizdat publications.