### 3.1 Automatic removal of non current objects versions

A non-current object version is a version which is not the latest for a given object. It is possible to set up an automatic removal of non-current versions when a version becomes older than a given number of days.

e.g., To scan objects stored under `user-uploads/` prefix and remove versions older than one year.

```
{
    "Rules": [
        {

## mirror some content to bucket2 and capture versions tiered
./mc mirror internal myminio/bucket2/ --quiet >/dev/null
./mc ls -r myminio/bucket2/ >bucket2_ns.txt
./mc ls -r --versions myminio/bucket2/ >bucket2_ns_versions.txt

sleep 30

./mc ls -r --versions mytier/tiered/ >tiered_ns_versions.txt

kill $pid

					if err := selectFrom(idx); err != nil {
						return err
					}
				}
				versions = append(versions, xl2.versions)
			}

			if xl != nil && len(versions) > 0 {
				// Merge all versions. 'strict' doesn't matter since we only need one.
				xl.versions = mergeXLV2Versions(readQuorum, true, 0, versions...)
				if meta, err := xl.AppendTo(metaDataPoolGet()); err == nil {
					if best.reusable {

		return true
	}
	if !chkNumVersions(fivs.Versions) {
		t.Fatalf("Expected all versions to have the same NumVersions")
	}

	sort.Slice(versions, func(i, j int) bool {
		if versions[i].IsLatest {
			return true
		}
		if versions[j].IsLatest {
			return false
		}
		return versions[i].ModTime.After(versions[j].ModTime)
	})

	for i, fi := range fivs.Versions {
		if fi.VersionID != versions[i].VersionID {

		_, err = dst.unmarshalV(x.metaV, version.meta)
		if err != nil {
			return versions, err
		}
		fi, err := dst.ToFileInfo(volume, path, allParts)
		if err != nil {
			return versions, err
		}
		fi.NumVersions = len(x.versions)
		versions = append(versions, fi)
	}

	for i := range versions {
		versions[i].NumVersions = len(versions)
		if i > 0 {

    /**
     * Enumeration of model versions that can be validated.
     * These versions correspond to different levels of validation that can be applied
     * during model building, based on the POM schema version.
     * <p>
     * The validation levels are cumulative, with higher versions including all validations
     * from lower versions plus additional checks specific to that version.
     */
    enum Version {
        /**

     *         matched the requested range
     */
    @Nonnull
    default Optional<Version> getHighestVersion() {
        return getVersions().isEmpty()
                ? Optional.empty()
                : Optional.of(getVersions().get(getVersions().size() - 1));
    }

    /**
     * Gets the repository from which the specified version was resolved.
     *

./mc cp README.md myminio1/testbucket/dir/file
./mc cp README.md myminio1/testbucket/dir/file

sleep 1s

echo "=== myminio1"
./mc ls --versions myminio1/testbucket/dir/file

echo "=== myminio2"
./mc ls --versions myminio2/testbucket/dir/file

versionId="$(./mc ls --json --versions myminio1/testbucket/dir/ | tail -n1 | jq -r .versionId)"

export AWS_ACCESS_KEY_ID=minioadmin
export AWS_SECRET_ACCESS_KEY=minioadmin

        // SMB1 should not be SMB2
        assertFalse(DialectVersion.SMB1.isSMB2());

        // All other versions should be SMB2
        for (DialectVersion version : DialectVersion.values()) {
            if (version != DialectVersion.SMB1) {
                assertTrue(version.isSMB2(), "Version " + version + " should be SMB2");
            }
        }
    }

    @Test

      purge:
          # retainVersions: 0 # (default) delete all versions of the object. This option is the fastest.
          # retainVersions: 5 # keep the latest 5 versions of the object.
  
    - type: deleted # objects with delete marker as their latest version
      name: NAME # match object names that satisfy the wildcard expression.