src/vs/workbench/contrib/extensions/browser/extensionsWorkbenchService.ts/Extension/hasChangelog
class Extension:	hasChangelog(): boolean {
		if (this.local && this.local.changelogUrl) {
			return true;
		}

		if (this.gallery && this.gallery.assets.changelog) {
			return true;
		}

		return this.type === ExtensionType.System;
	}