I was reading the upgrade guide - but had the idea to try the upgrade via Magento connect. but is there any chance to update via admin panel
1 Answer
No, you cannot update to Magento2 using admin interface or magento connect.
Magento 2 has backward incompatible changes to code and database, so magento team developed data migration tools that allow migrate data form 1.x to 2.x version, but it have commandline interface.