Share Release Notes and Post-Install Instructions

Share details about what’s new and changed in an unlocked package with your users. You can specify a release notes URL to display on the package detail page in the user’s org. And you can share instructions about using your package by specifying a post install URL. The release notes and post install URLs display on the Installed Packages page in Setup, after a successful package installation. For users who install packages using an installation URL, the package installer page displays a link to release notes. And users are redirected to your post install URL following a successful package installation or upgrade.

"packageDirectories": [
      {
         "path": "expenser-schema",
         "default": true,
         "package": "Expense Schema",
         "versionName": ""ver 0.3.2"",
         "versionNumber": "0.3.2.NEXT",
         "postInstallUrl": "https://expenser.com/post-install-instructions.html",
         "releaseNotesUrl": "https://expenser.com/winter-2020-release-notes.html"
        },
        ],
       {
         "namespace": "",
         "sfdcLoginUrl": "https://login.salesforce.com",
         "sourceApiVersion": "47.0",
         "packageAliases": {
             "Expenser Schema": "0HoB00000004CzHKAU",
             "Expenser Schema@0.1.0-1": "04tB0000000719qIAA"
      }
}

You can also use the --post-install-url and the --release-notes-url Salesforce CLI parameters with the sf package version create command. The CLI parameters override the URLs specified in the sfdx-project.json file.