Chapter 11. Bitcoin upgrades
This chapter covers
- Understanding hard forks and soft forks
- Upgrading Bitcoin safely
- Understanding that users make the rules
To understand this chapter, you should be comfortable with concepts like the blockchain (chapter 6), proof of work (chapter 7), and the peer-to-peer network (chapter 8). If you had difficulties with those chapters, I suggest you revisit them before continuing with this chapter. Of course, you can also just try to read on anyway.
Bitcoin’s consensus rules can change in two ways: via either a soft fork or via a hard fork. These two types of changes are fundamentally different. In “Bitcoin forks,” you’ll learn about the differences between hard and soft forks and about what happens when different ...