This report is the second update to the DIAMOND project’s strategy for communication, dissemination, and exploitation (CDE) activities to relevant audiences, submitted one year prior to the project’s conclusion. As in the initial CDE plan described in deliverable D7.2 (and its update in D7.3), this report first defines the scope of CDE in the context of DIAMOND and sets the overall targets of the project, which aims to follow a tailored approach to develop inclusive messages and convey them to specific audiences through efficient communication means. The report also sets quantifiable indicators for specific activities that will be tracked throughout the duration of the project, such as publishing at least 10 articles and press releases throughout the project. Next, the report iterates the identification of the project’s target audiences, which include modellers, researchers, policymakers, and industries, as well as NGOs and civil society organisations. A multi-pronged selection of promotional channels/platforms is suggested, to more effectively target these varied populations. The promotional channels to reach project audiences include the project’s website, social media (e.g., X, LinkedIn, and Instagram), the IAM PARIS platform, synergies with other relevant projects, open-access papers, and more. A visual identity and a logo for the project have been developed and has been used throughout the project, including in the design of the project website and promotional materials such as infographics, presentations, and videos. The plan concludes by reporting progress towards the CDE indicators, as of September 2025, and outlines the forthcoming actions aimed at enhancing dissemination and stakeholder engagement.