no. they remain unchanged.
in fact, you can leave your lr 5 installed. it is compatible with lr cc.
If you launch the new Lightroom CC and then select your Lightroom catalog that you were using with Lightroom 5, You will get a message asking if it is OK to upgrade your Lightroom 5 catalog to be compatible with Lightroom CC. It renames the Lightroom 5 Catalog, to whatever your catalog WAS named as, and adds a —2.
I recommend making a back up copy of your Lightroom 5 catalog FIRST - using a back up program or at the very least, drag copying your whole Lightroom Catalog folder to a separate hard drive or location.
Then. go ahead and let Lightroom CC upgrade your catalog.
You can later rename the ....Lightroom 5 catalog—2.lrcat to whatever you want.
Here are the instructions from Adobe on how to do rename your catalog:
You can rename a catalog in the Explorer (Windows) or Finder (Mac OS). If you rename a catalog, make sure to also rename its corresponding Previews and Smart Previews files.
- Close Lightroom.
- Navigate to your catalog and its preview files in the Explorer (Windows) or Finder (Mac OS). They should be in the same folder.
- Rename all three files, making sure to keep the word Previews in the preview cache files. For example:
Old filename New filename Lightroom 5 Catalog.lrcat My trip catalog.lrcat Lightroom 5 Catalog Previews.lrdata My trip catalog Previews.lrdata Lightroom 5 Catalog Smart Previews.lrdata My trip catalog Smart Previews.lrdata
Note: Smart Preview cache files are available for Lightroom 5, not earlier versions.
After you rename your catalog, you could have to help Lightroom find it. See Lightroom can't find my catalog. How do I find it?