Yes, the Zollikon Seminars, also known as the "Zollikon Seminars: Protocols - Conversations - Letters," took place in 1959 between Martin Heidegger and the psychiatrist Medard Boss. These seminars occurred after what is often referred to as Heidegger's "turn" or his "later period."
Heidegger's philosophical development is often divided into early, middle, and later periods. The "turn" refers to a shift in his thinking that occurred around the mid-1930s, marked by his engagement with themes such as language, poetry, and the history of being. In his later period, Heidegger became more focused on questions of language, art, and the nature of being itself.
Therefore, yes, the Heidegger in the Zollikon Seminars can be considered as the later Heidegger, post the turn in his thinking.
