In addition to the third edition of EUA's Autonomy Scorecard, which was published in March 2023, a series of country profiles were released between Autumn 2023 and Spring 2024. The comprehensive analysis of all indicators in these systems revealed that in some cases there was a need for a different categorisation of specific situations. While the Scorecard's European comparative perspective requires simplifying complex and diverse higher education systems, the release of the country profiles led to some adjustments in four countries--Lithuania, Portugal, Spain, and Türkiye-- which allowed to better reflect upon their respective circumstances. This Addendum outlines the changes made and highlights all affected areas, including timelines, ranking tables, graphs, and maps. As a result, some scores in these systems differ from those presented in the report initially published in March 2023. The country profiles and the updated version of the comparative report released in Spring 2024 now reflect the adjustments made.