What is the difference between magento1 and magento2

magento

Magento 1                                     Magento 2 No Front-end Library                  Ships with LESS No Support for HTML5/CSS3     Native Support HTML5/CSS3 Weak Content Staging                Advanced Content Staging External PayPal                            In-Site PayPal Experience Full Page Cache (EE)                    FPC (EE)/Varnish Severe DB Locking Issues          

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