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Zen 2 is the codename for a successor of AMD's Zen and Zen+ microarchitectures due to be fabricated on the 7nm node from TSMC with product sampling planned for late 2018, followed by a wide release early 2019. Zen 2 is expected to bring an increase in instructions per clock over Zen, but not nearly as large as the jump from Excavator to Zen. At the 2018 CES, AMD confirmed that Zen 2 design was complete; however, its release was not announced for 2018, leading analysts to predict a 2019 release date. Zen 2 is planned to include hardware mitigations to the Spectre security vulnerability.