This article analyses the implications of recent policy changes for the portrayal of minority nationalities in the latest China's history textbooks published around 2017. We argue that ideological responses to the fierce ethnic clashes of the late 2000s and the leadership transition since 2012 have generated increasingly contradictory official discourses on the relationship between Chinese identity and cultural diversity, which are manifested in the textbooks. On the one hand, policies and textbooks still appear to endorse a multi-"minzu," inclusive understanding of nationhood and Chinese history. On the other hand, an increasing emphasis on nationalist discourses celebrating the Han culture and achievements reinforces assimilationist narratives based on a monolithic and homogenising vision of Chinese nationhood. We argue that such tensions reflect conflicts over contradictory understandings of Chineseness that have intensified since 2008--2009, and that the increasing marginalisation in textbooks of non-Han groups may contribute to further exacerbating problems in the handling of inter-"minzu" relations.