Hi, I am going to update Adobe Indesign cc 2015 to newer version and I am worried I may not be able to open the files I created IN CC 2015 from the new version. Can you assist which later version of Indesign can work with files created in cc2015?
You will be able to open your 2015 files in 2017 without any issues.
But, before you upgrade, you might want to read the first half of this post, to see how to keep 2015 installed as your install 2017. Not because of file compatibility issues, but because some people have have had issues with 2017 running smoothly. If you have issues with 2017, you can easily return to 2015. If you don't, you can uninstall 2015 whenever you like.