photoshop cc compared to photoshop 2021

Photoshop CC (without a number) was released in 2013, and new releases with new features have come out each year since then. Is that what you are asking? Photoshop 2021 is the ninth version of CC.

If you have a valid subscription to Creative Cloud, and if your computer meets the system requirements, you can upgrade to the newest version or the one previous at no extra cost.

~ Jane