diff --git a/upgrades/7.6/data.json b/upgrades/8.0.1-8.0.2/data.json
similarity index 100%
rename from upgrades/7.6/data.json
rename to upgrades/8.0.1-8.0.2/data.json
diff --git a/upgrades/8.0.1-8.0.2/scripts/AfterUpgrade.php b/upgrades/8.0.1-8.0.2/scripts/AfterUpgrade.php
new file mode 100644
index 0000000000..f266fc5cd9
--- /dev/null
+++ b/upgrades/8.0.1-8.0.2/scripts/AfterUpgrade.php
@@ -0,0 +1,119 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2022 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+use Espo\Core\Container;
+use Espo\Core\Templates\Entities\Event;
+use Espo\Entities\Role;
+use Espo\ORM\EntityManager;
+use Espo\ORM\Query\Part\Expression;
+use Espo\ORM\Query\UpdateBuilder;
+use Espo\Core\Templates\Entities\Company;
+use Espo\Core\Templates\Entities\Person;
+use Espo\Core\Templates\Entities\Base;
+use Espo\Core\Templates\Entities\BasePlus;
+use Espo\Core\Utils\Metadata;
+
+class AfterUpgrade
+{
+    public function run(Container $container): void
+    {
+        $this->updateRoles(
+            $container->getByClass(EntityManager::class)
+        );
+
+        $this->updateMetadata(
+            $container->getByClass(Metadata::class)
+        );
+    }
+
+    private function updateRoles(EntityManager $entityManager): void
+    {
+        $query = UpdateBuilder::create()
+            ->in(Role::ENTITY_TYPE)
+            ->set(['messagePermission' => Expression::column('assignmentPermission')])
+            ->build();
+
+        $entityManager->getQueryExecutor()->execute($query);
+    }
+
+    private function updateMetadata(Metadata $metadata): void
+    {
+        $defs = $metadata->get(['scopes']);
+
+        foreach ($defs as $entityType => $item) {
+            $isCustom = $item['isCustom'] ?? false;
+            $type = $item['type'] ?? false;
+
+            if (!$isCustom) {
+                continue;
+            }
+
+            if ($type === Event::TEMPLATE_TYPE) {
+                $metadata->set('entityDefs', $entityType, [
+                    'fields' => [
+                        'dateEnd' => [
+                            'suppressValidationList' => ['required'],
+                        ],
+                    ]
+                ]);
+
+                $metadata->save();
+
+                continue;
+            }
+
+            if (
+                !in_array($type, [
+                    BasePlus::TEMPLATE_TYPE,
+                    Base::TEMPLATE_TYPE,
+                    Company::TEMPLATE_TYPE,
+                    Person::TEMPLATE_TYPE
+                ])
+            ) {
+                continue;
+            }
+
+            $recordDefs = $metadata->getCustom('recordDefs', $entityType) ?? (object) [];
+            $scopes = $metadata->getCustom('scopes', $entityType) ?? (object) [];
+
+            $recordDefs->duplicateWhereBuilderClassName = "Espo\\Classes\\DuplicateWhereBuilders\\General";
+
+            if (!isset($scopes->duplicateCheckFieldList)) {
+                $scopes->duplicateCheckFieldList = [];
+
+                if ($type === Company::TEMPLATE_TYPE || $type === Person::TEMPLATE_TYPE) {
+                    $scopes->duplicateCheckFieldList = ['name', 'emailAddress'];
+                }
+            }
+
+            $metadata->saveCustom('recordDefs', $entityType, $recordDefs);
+            $metadata->saveCustom('scopes', $entityType, $scopes);
+        }
+    }
+}
diff --git a/upgrades/8.0/data.json b/upgrades/8.0/data.json
new file mode 100644
index 0000000000..60ec91eb56
--- /dev/null
+++ b/upgrades/8.0/data.json
@@ -0,0 +1,10 @@
+{
+    "manifest": {
+        "delete": [
+            "client/lib/original/espo.js",
+            "client/lib/espo.min.js",
+            "client/lib/espo.min.js.map",
+            "client/cfg/pre-load.json"
+        ]
+    }
+}
diff --git a/upgrades/7.6/scripts/AfterUpgrade.php b/upgrades/8.0/scripts/AfterUpgrade.php
similarity index 100%
rename from upgrades/7.6/scripts/AfterUpgrade.php
rename to upgrades/8.0/scripts/AfterUpgrade.php
diff --git a/upgrades/7.6/scripts/BeforeUpgrade.php b/upgrades/8.0/scripts/BeforeUpgrade.php
similarity index 100%
rename from upgrades/7.6/scripts/BeforeUpgrade.php
rename to upgrades/8.0/scripts/BeforeUpgrade.php