Two Photoshop

[star098stone]

Hello, I got two Photoshop. Please tell me why need two Photoshop? What is the difference? Which is better to use?

Thanks

[Chuck Uebele · Accepted solution]

If version 21 works well for you, you can uninstall version 20. It's good to leave the older version installed until you know you are not going to have problems with the new version 

[star098stone]

Ok, thank you