- Errata
- December 2019 update for .NET Core 3.1
- Upgrading to Piranha CMS 8.1
- Fourth Edition's support for .NET 5.0
- Appendix, Answers to the Test Your Knowledge Questions
- Color images of the screenshots/diagrams used in this book
All of the code examples are 100% compatible with either .NET Core 3.0 or .NET Core 3.1.