no curvature tool,no update

[karensss1961]

there is no curvature pen  tool in photoshop,i know its only in the 2018 update but there is no new update to be found in the adobe cc,and i'm on 2017,and there isnt an update on my mac to be done either,i am using Yosemite 10.10.5 is this the problem? thank you

[Jeff Arola]

The very newest photoshop cc 2018 requires at least mac OS X 10.11 El Capitain, so your using mac OS X 10.10, which photoshop cc 2018 will not run on.

https://helpx.adobe.com/photoshop/system-requirements.html

Are you able to upgrade your mac to El Capitan or High Sierra?

macOS - How to Upgrade - Apple