iPad Pro 12.9 6th gen compatibility with iPadOS 18

I have iPad Pro 129 6th generation Is my iPad able to use the iPad OS 18 system? Was alerted someone on Etsy while I was. Maybe it was me. Have no idea if I have that system. Should I change my email password coz signed in with Google.

[Re-Titled by Moderator]

Original Title: I have ipad pro 12.9 6th generation. Is my ipad able to use the ipad OS 18? Was alerted someone on Etsy on device with this system. Should I change password for my email?