The Individual Brain Charting (IBC) project has announced its fifth and most extensive data update, significantly expanding the library of high-resolution functional MRI (fMRI) resources. Published in Scientific Data, this release introduces 18 new cognitive tasks performed by 11 volunteers who were repeatedly scanned under strictly controlled conditions. Each participant accumulated nearly 40 hours of imaging data, creating an exceptionally detailed portrait of individual brain function. Launched in 2014, the IBC project aims to map how individual brains respond to a wide spectrum of cognitive activities. Unlike traditional studies that compare different groups of people performing different tasks, the IBC protocol focuses on the same participants completing numerous tasks. This methodology preserves unique individual details that are often lost in aggregate data. The tasks cover diverse domains including mathematics, spatial navigation, emotion recognition, reward processing, and working memory. Ana Fernanda Ponce, a researcher at Paris-Saclay University and the study's first author, highlighted the project's unique value. She noted that having the same individuals perform many tasks under identical conditions allows scientists to observe how distinct cognitive processes integrate within a single brain. The current dataset now encompasses 67 distinct tasks, 530 contrasts between task conditions, and 188 specific cognitive concepts. This comprehensive collection provides a robust foundation for fine-grained brain mapping and computational modeling. The data serves as a critical resource for validating new models of cognitive mapping and AI-driven simulations of neural activity. By tracking individual variability across such a broad range of contexts, researchers can better understand the interactions between different cognitive functions and assess the accuracy of brain models. All data from the IBC project are openly accessible through the EBRAINS Knowledge Graph. The collection complies with FAIR (Findable, Accessible, Interoperable, and Reusable) principles and GDPR regulations, ensuring secure and ethical data sharing. A significant challenge for the project was maintaining participant engagement over multiple years of intensive scanning. Ponce expressed deep gratitude for the volunteers' sustained commitment, noting their high level of motivation was essential to the project's success. As the IBC continues to grow, it stands as one of the most detailed brain-mapping datasets available, offering unprecedented opportunities to explore the complexities of human cognition and individual neural organization. The project's ongoing work is expected to further refine our understanding of brain function and support advancements in neuroscience and artificial intelligence.