Caution: Do not uninstall your product prior to or after upgrading unless you intend to remove the product from your system. Beginning with Observer Platform 17.0, each Observer Platform product creates a security certificate that uniquely identifies it when it is installed. If you uninstall your product prior to upgrading, you will lose the trust relationship established by the security certificate and must re-authenticate. Uninstalling and reinstalling creates a new certificate. The new certificate will be automatically rejected by other Observer Platform products that had had a pre-existing association with the asset ID of the reinstalled software. For more details about the certificates, see Understanding the certificate trust model.