A complex project that had hundreds of risks is almost done.

When closing risks as part of the closing process, it is important to update the lessons learned document. This document captures the knowledge and experience gained during the project and can be valuable for future projects.

 Lessons learned is a document that captures the knowledge gained from the project and can help improve the performance of future projects. It is one of the outputs of the project closure process and should include information on the project risks, issues, and responses. Lessons learned can help identify the best practices and lessons to be applied or avoided in similar projects. Updating the lessons learned document is an important part of closing the risks as it can provide valuable insights for risk management. References: PMI, Project Risk Management, 2nd edition, 2019, p. 97-981