The Chinese Academy of Sciences is no longer publishing its journal ranking. Credit: Cheng Xin/Getty The National Science Library of the Chinese Academy of Sciences (CAS) in Beijing has stopped publishing its influential journal ranking, taking many researchers by surprise. The ranking has had a central role in research evaluation in the country for more than 20 years and its cessation leaves universities and academics uncertain about what happens next. The CAS journal ranking, also called the CAS Journal Partition Table, was developed as a tool to help researchers assess journal quality. But over time, it began to influence hiring decisions, funding allocation and promotions. “The official retirement of the CAS Journal Partition Table is indeed a crucial watershed moment for China’s scientific evaluation system,” says Xinchen Gu, an ecologist at the South China University of Technology in Guangzhou. The ranking itself hasn’t disappeared, however.…