5.3.R10 modifies the way to handle projects in CiteSpace using the plain text file citespace.projects.txt in the .citespace folder under your user folder.
If you are using a previous version of CiteSpace, use Projects > Export Projects to save your existing projects. 5.3.R10 can understand the file format saved from the Export Projects.
The menu is slightly changed in 5.3.R10 as follows:
Projects > List Projects actually does two things: 1) save the existing projects and 2) display the content of the saved file. You can use any text editor to modify a project. You can even directly create a new project in the text file as long as you follow the template. If the project or data directories are not found, they will be created for you.
Here is a screenshot of the display:
Three commonly used project properties are highlighted in the Edit Properties to get your attention.
You can reload the saved projects with Projects > Import Projects to open the citespace.projects.txt file. Since by default the file is saved under the .citespace, it would be a good idea to keep a copy elsewhere in case you accidently delete the .citespace.