Hello, many aspose products have a .net 4.0/4.5 dll but not a .net 4.8 dll.
To get started, even with the same source code it’s vital to have a .net 4.8 dll build, and has many benefits, specially for email, imaging and…...specially for email, imaging and zip, can be useful for words/cells...will immediately fix them, and 4.7.2+ up to 4.8 will bring many improvements...