The download page lists Seafile Client 9.0.15 and Seadrive Client 3.0.16, but the respective changelogs only contain information about Seafile Client 9.0.14 and Seadrive Client 3.0.15.
Could you please update the changelogs?
Thanks for reporting the issue.
The changelog was written to the document for version 12. Now the changelog has been copied to version 13 document.