Version 6 (Published: Dec 2016)
contains a number of Time Series Updates, particularly for Counties and Prefectures.
for layers not updated, see Version 5
CHGIS V6 [China Historical Geographic Information System]
(c) 2016 CHGIS, Fairbank Center for Chinese Studies (Harvard University) and Center for Historical Geographical Studies (Fudan University)
Citation: "CHGIS, Version: 6. (c) Fairbank Center for Chinese Studies of Harvard University and the Center for Historical Geographical Studies at Fudan University, 2016."
License: free for academic research, no commercial use, resale, or redistribution permitted.
Distribution URL: https://dataverse.harvard.edu/dataverse/chgis_v6