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Prebid Server Release Versioning

Prebid Server uses regular versioning MAJOR.MINOR.PATCH-SNAPSHOT where:

MAJOR version - increment when we make incompatible API changes.
MINOR version - increment when we add functionality in backward compatible manner.
PATCH version - incremented when we make backward-compatible bug fixes.
SNAPSHOT qualifier - considers "as-yet-unreleased" version.

Showcases

When Prebid Server involves breaking changes MAJOR version must be incremented. For example, current project version is 1.17.3. So, next project version in this case will be 2.0.0.
When Prebid Server involves new features with backward compatibility MINOR version must be incremented. For example, current project version is 1.17.3. So, next project version in this case will be 1.18.0.
When Prebid Server involves bug fixes PATCH version must be incremented. For example, current project version in POM file is 1.18.0-SNAPSHOT and previous release version was 1.17.3. So, next release version in this case will be 1.17.4 and development version must be back to 1.18.0-SNAPSHOT.

To set a project version and create a tag in remote repository maven release plugin can be used. For example:

mvn release:clean release:prepare -DreleaseVersion=1.17.0 -DdevelopmentVersion=1.18.0-SNAPSHOT

To validate modifications above command can be appended with -DdryRun=true flag. This will prevent any changes.