Attached are the Summer 18 release notes, upgrade instructions (from Spring 18) and the updated user manuals.
Please note that the upgrade instructions are specifically for upgrading from Spring 18 to Summer 18. Summer 18 is version v1.250.3 or later.
If you have a version that is older than Spring 18, please follow this article to upgrade to Spring 18 before upgrading to Summer 18.
If you are not sure which version you currently have, please follow the steps below to find out:
1. Go to Salesforce Set up, search for "Installed Packages".
2. You will see the version number under "Version Name". If you have version v. 1.239.4 or later, you can follow the attached instructions to upgrade to Summer 18.