versioning.setRelease(recessive.getVersioning().getRelease());
            }

            Collection<String> versions =
                    new LinkedHashSet<>(recessive.getVersioning().getVersions());
            versions.addAll(versioning.getVersions());
            versioning.setVersions(new ArrayList<>(versions));
        }

        // just carry-on as-is
        if (!recessive.getPlugins().isEmpty()) {

Releasing
=========

1. Update `CHANGELOG.md`.

2. Set versions:

    ```
    export RELEASE_VERSION=X.Y.Z
    export NEXT_VERSION=X.Y.Z-SNAPSHOT
    ```

3. Update versions, tag the release, and prepare for the next release.

    ```
    sed -i "" \
      "s/version = \".*\"/version = \"$RELEASE_VERSION\"/g" \
      build.gradle.kts
    sed -i "" \

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.apache.maven.its</groupId>
  <artifactId>b</artifactId>
  <version>0.1</version>
  <versioning>
    <versions>
      <version>0.1</version>
    </versions>
    <lastUpdated>20091023222817</lastUpdated>
  </versioning>

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.apache</groupId>
  <artifactId>apache</artifactId>
  <versioning>
    <latest>1</latest>
    <release>1</release>
    <versions>
      <version>1</version>
    </versions>
    <lastUpdated>20150428055824</lastUpdated>
  </versioning>

<?xml version="1.0" encoding="UTF-8"?><metadata>
  <groupId>org.apache.maven.its.mng3906</groupId>
  <artifactId>d</artifactId>
  <version>0.1</version>
  <versioning>
    <release>0.1</release>
    <versions>
      <version>0.1</version>
    </versions>
    <lastUpdated>20081214111146</lastUpdated>
  </versioning>

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-jar-plugin</artifactId>
  <version>0.1</version>
  <versioning>
    <latest>0.1</latest>
    <release>0.1</release>
    <versions>
      <version>0.1</version>
    </versions>
    <lastUpdated>20091023232454</lastUpdated>
  </versioning>

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-surefire-plugin</artifactId>
  <version>0.1</version>
  <versioning>
    <latest>0.1</latest>
    <release>0.1</release>
    <versions>
      <version>0.1</version>
    </versions>
    <lastUpdated>20091023225125</lastUpdated>
  </versioning>

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.apache.maven.its.plugins</groupId>
  <artifactId>maven-it-plugin</artifactId>
  <version>0.1</version>
  <versioning>
    <latest>0.1</latest>
    <release>0.1</release>
    <versions>
      <version>0.1</version>
    </versions>
    <lastUpdated>20091023233513</lastUpdated>
  </versioning>

  <groupId>ut.simple</groupId>
  <artifactId>parent</artifactId>
  <versioning>
    <latest>1.0</latest>
    <release>1.0</release>
    <versions>
      <version>1.0</version>
    </versions>
    <lastUpdated>20111123122038</lastUpdated>
  </versioning>

                    Arguments.of("4.0", "incomplete version (major.minor only)"),
                    Arguments.of("invalid", "non-numeric version"),
                    Arguments.of("4.0.0-SNAPSHOT", "snapshot version"),
                    Arguments.of("4.0.0.1", "four-part version"),
                    Arguments.of("v4.0.0", "version with prefix"),
                    Arguments.of("4.0.0-alpha", "pre-release version"));
        }
    }