Visa requirements
 

It is my understanding that Chinese Visa has been extended to 10 years, I got a visa for China 4 years ago, so am I good to go? I went to Beijing and now will be traveling to Shanghai, is there anything I need to do to assure entry ? Thank you.

You should check the expiration date on your visa. It will tell you exactly how long it is valid.

10-year visas are only offered to US and Canadian citizens. We have no idea what visa you have, just read that it says on your visa.

You are restricted to the stipulations of the visa you received so if you got say a six month visa then that’s it. As CCT said check your expiration date.