In this session, a review of the past three years of the deepwater technology development program, spanning the spectrum of more than 30 projects in the areas of reservoir, D&C, subsea, flow assurance, floating systems, and metocean, will be highlighted. DeepStar will share some of the impactful collaborative efforts completed within Phase XII committees leading to gap identification, industry standards, and technology integration and deployment. In recent years, one of the themes of DeepStar's focus has been the areas of long distance subsea tieback, flow assurance, HP/HT conditions and equipment. In this session, selected papers will highlight the developments related to understanding of fluid properties at HP and high salinity conditions, understanding of D&C capabilities for HP/HT, standardization of materials selection basis of design, efforts related to equipment testing criteria, and verification of industry HP/HT design methodologies. Further, some specific examples of selected equipment qualification efforts for 20 ksi will be highlighted. Methodologies for system integrity assurance for innovative deepwater systems will be outlined in the context of new technology deployment for deepwater and harsh marine conditions.