Magento 1.9 upgrade to Magento 2 via admin panel or Magento Connect

There are people wondering if it is possible to upgraded to Magento 2 from Magento 1 via admin panel or Magento Connect? The answer is definite: No, it is not possible to update to Magento 2 via admin interface or Connect.

Get FREE Migration Add-on of Improved Import and Export extension for Magento 2

Connect database of your Magento 1 to Magento 2. Select the entities you want to migrate. Start migration.

• The add-on comes with the following features:
• Selective migration of entities.
• Support of all entities: products, orders, customers, etc.
• Direct SQL connection.
• No store downtime.

The add-on is installed atop of Improved Import and Export extension for Magento 2.

The core reason is crucial difference in code and database between Magento 2 and 1. Therefore, there are data migration tools designed for moving data from 1.x to 2.x. For further information, check this post: Migration to Magento 2.

More tips from Magento 2 Cookbook

Source (Magento Stackexchange Question) (KAndy)