Semantic Versioning is a universal three-component versioning specification (MAJOR.MINOR.PATCH) that communicates breaking API changes and compatibility.
Semantic Versioning (SemVer 2.0.0) is a standardized versioning convention for software libraries, packages (npm, Cargo, PyPI), and APIs. Given a version number MAJOR.MINOR.PATCH, increment:
| Prefix | Behavior | Example Range |
|---|---|---|
^ (Caret) |
Compatible with version (same Major) | ^1.2.3 := >=1.2.3 <2.0.0 |
~ (Tilde) |
Reasonably close (same Minor) | ~1.2.3 := >=1.2.3 <1.3.0 |
= or exact |
Strictly pinned exact version | 1.2.3 := 1.2.3 exactly |
>, <= |
Mathematical comparison intervals | >=2.0.0 <3.1.0 |
Free, browser-based utilities to test, generate, and inspect Semantic Versioning 2.0.0 (SemVer) payloads directly.
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