If I uninstall an older version of SoftChalk Create (Desktop version), will I lose my Library items?

No. You will be able to use your same library items in the current version SoftChalk Create (Desktop Version) that you used in an older version.

If you are moving your content to SoftChalk Cloud, you may want to save your Library items to your SoftChalk Cloud account BEFORE you uninstall your desktop version.

For instructions on saving your Library items to your SoftChalk Cloud account see the Publish a Library Item to the SoftChalk Cloud section of the SoftChalk Create Guide.