magento2.3 – Magento – 2.3.0 Possible problems?

Magento launched the Magento-2.3.0 version on November 28, 2018.

This version includes:

  1. Easily manage inventory in multiple locations, accelerate compliance and improve payment performance with inventory from multiple sources
  2. Create superior mobile shopping experiences and lower the total cost of ownership with Progressive Web Apps
  3. Create new pages and update content ten times faster, without IT support, using Page Builder, available exclusively for Magento Commerce *
  4. Develop custom front-end experiences and increase the performance of integrations and extensions with enhanced APIs

The Magento recommends updating our Magento software to the latest version as soon as possible.

What are the possible problems with this Magento-2.3.0 version?