Checking the client version can help you know whether it is the latest one. 

Applies to: All Reolink devices

For Windows Client:

Please click the icon in the top-right corner to go to the Client Settings page, then click About Reolink at the left-bottom corner of the page.

 Client Settings

About Reolink

Then, you will see the version information of the Client.

version

For Mac Client:

Please launch Reolink Client, then click Reolink > About Reolink in the top left corner to check your Reolink Client version.

Mac Client

mac version information