I ask the question because when I installed PPro, my installed version of Photoshop Elements stopped working and Adobe just told me I had to buy a new version. I can't afford to be without a working editing suite and I am nervous about screw-ups. I need to know that if all else fails I can still use my existing PPro CS5.
Welcome to Adobe forum.
If you will upgrade to Creative Cloud then also your CS5 PrePro will work.
We dont support CS5 ro CS5.5 version software anymore for technical issues.
So I have Adobe's absolute assurance that this is the case? I am anticipating complications as I migrate to CC and under no circumstances can I afford to be without a working edit package. I must be able to default back to PPro CS5 while I resolve any complications that do occur.