C# 8.0 is the next major release version of C#
C# 7.3 is a minor release with a few enhancements to the existing features
ES9 provides syntactic support for asynchronous iteration - synchronous iterators and asynchronous iterables, which is just like regular iterators, except that they have a next() method that returns in Promise.
forEach can be used just like a traditional 'for loop' that iterates each of the array element once.
Create folders under Media
It is easy to upload images to Media folder in Umbraco but there are some instances where you need to upload images to media folder programatically, via code.