The ERCOFTAC Knowledge Base WIKI has for many years served the CFD community as a repository of structured knowledge and advice, designed to underpin quality and trust in the industrial and academic application of CFD. Each of the cases is underpinned with high quality experimental data. In the past, the KB WIKI included some openly available and free content, plus some premium content available to ERCOFTAC members only. From now onwards, all of the KB WIKI content is openly available to all individuals and organisations, whether or not they are members of ERCOFTAC. We believe that this will significantly increase the usage of the high quality material, and will encourage further contributions. The KB WIKI will continue to be edited by senior academic ERCOFTAC representatives, to ensure quality and relevance.