Overview

• Macworld’s analysis of Apple’s internal code uncovered identifier t8152, consistent with Ultra-class chips and linked to the codename “Hidra.”
• Reporters interpret the entries as tying the unreleased M4 Ultra to a forthcoming Mac Pro, shedding light on why the tower’s update has been delayed.
• Industry watchers caution that Apple often leaves traces of unshipped hardware in its code, so these references do not guarantee a commercial release.
• Observed design challenges include the M4 Max’s missing UltraFusion interconnect, which may force a costly monolithic die approach for an Ultra variant.
• With no official confirmation from Apple and M5-series identifiers already surfacing elsewhere, the M4 Ultra Mac Pro’s production and launch timeline remain uncertain.