API Design

Breaking Change

/ˈbreɪkɪŋ tʃeɪndʒ/

Definition

An API change that is incompatible with existing clients, requiring them to update their integration.

Example in context

"Renaming a response field from 'user_id' to 'userId' is a breaking change — increment the major version."

Practice this term

Master Breaking Change in context by working through exercises in the API Design module. You'll see the term used in real engineering scenarios with multiple-choice, fill-in-the-blank, and matching drills.

Frequently Asked Questions

What does "Breaking Change" mean?

An API change that is incompatible with existing clients, requiring them to update their integration.

How do you pronounce "Breaking Change"?

"Breaking Change" is pronounced /ˈbreɪkɪŋ tʃeɪndʒ/.

Can you use "Breaking Change" in a sentence?

"Renaming a response field from 'user_id' to 'userId' is a breaking change — increment the major version."