February 23, 2026: The purpose of this updated Special Notice is to release the Industry Day Presentation Slide Deck (Attachment 1) and post the Responses to Questions received at Industry Day (Attachment 2). December 19, 2025: Original Posting: The Defense Advanced Research Projects Agency (DARPA) Tactical Technology Office (TTO) is sponsoring an Industry Day to provide information to potential proposers on the objectives of the Cyber Physical System Executing in Real Time (CyPhER) Forge program in advance of a planned Program Solicitation (PS). This event provides a valuable forum for attendees to gain insights into the CyPhER Forge objectives, network with colleagues, and to engage with subject matter experts.