What is the difference between build and release?

Build — is the compilation of the project's source code into an executable application, ready for testing or deployment. The result of a build is most often an executable file, archive, or package.

Release — is a version of the product that has passed testing and is prepared for release to end users or customers. A release includes one or more builds, documentation, configuration data, and other artifacts necessary for successful deployment and use.

Criterion	Build	Release
Purpose	Testing, internal verification	Release for users/customers
Status	May be unstable, not fully tested	Stable, has passed all testing stages
Contents	Executable code and main dependencies	Executable code, documentation, configuration, etc.
Lifecycle	Often created during development	Created after development and testing are complete
Availability	Usually only for development/QA team	For end users or customers
Versioning	Uses build numbers (e.g., date-time, increment)	Uses semantic versioning (Major.Minor.Patch) or other schemes