The new update comes with a long list of changes and enhancements, such as decoding for AV1, Matrix-inspired music visualization, visual subtitle enhancements, GUI enhancements for managing notches on iOS devices, and more.
This software is still in alpha version, and the developers of the application Kodi warn that you will most likely encounter errors. Before it is finally available to the general public, it will have to go through the alpha, beta phases and submit candidate release versions to resolve bugs.
If you use its extensions Kodi, you might also run into problems as support for Python 2 ends with this release. Extensions must be written in Python 3 to work properly. According to the announcement of the new version, when developers update their add-ons in Python 3, they will be reactivated in Kodi 19. Available additives are reported to be increasing every week, but not all are ready yet.