| Package | Description | 
|---|---|
| com.hazelcast.cluster | This package contains the cluster functionality. | 
| com.hazelcast.nio | This package contains classes related to New IO | 
| com.hazelcast.version | This package contains classes to support the versioning API. | 
| Modifier and Type | Method and Description | 
|---|---|
| Version | Cluster. getClusterVersion()The cluster version indicates the operating version of the cluster. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | Cluster. changeClusterVersion(Version version)Changes the cluster version transactionally. | 
| void | Cluster. changeClusterVersion(Version version,
                    TransactionOptions options)Changes the cluster version transactionally, with the transaction options provided. | 
| Modifier and Type | Method and Description | 
|---|---|
| Version | VersionAware. getVersion() | 
| Version | WanProtocolVersionAware. getWanProtocolVersion()Returns the WAN protocol version. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | VersionAware. setVersion(Version version)If the serializer supports versioning it may set the version to use for
 the serialization on this object. | 
| void | WanProtocolVersionAware. setWanProtocolVersion(Version version)Sets the WAN protocol version. | 
| Modifier and Type | Field and Description | 
|---|---|
| static Version | Version. UNKNOWNVersion 0.0 is UNKNOWN constant
 
 UNKNOWN is only equal to itself.
  is(Less|Greater)Thanmethod with an UNKNOWN operand returns false.is(Less|Greater)OrEqualwith an UNKNOWN operand returns false, unless both operands are UNKNOWN.UNKNOWN.isUnknown(Less|Greater)(Than|OrEqual)returns true.otherVersion.isUnknown(Less|Greater)(Than|OrEqual)with an UNKNOWN argument returns false. | 
| Modifier and Type | Method and Description | 
|---|---|
| Version | MemberVersion. asVersion() | 
| static Version | Version. of(int major,
  int minor) | 
| static Version | Version. of(String version)Parse the given string to a  Version. | 
| Modifier and Type | Method and Description | 
|---|---|
| int | Version. compareTo(Version o) | 
| boolean | Version. isBetween(Version from,
         Version to)Checks if the version is between specified version (both ends inclusive) | 
| boolean | Version. isEqualTo(Version version) | 
| boolean | Version. isGreaterOrEqual(Version version) | 
| boolean | Version. isGreaterThan(Version version) | 
| boolean | Version. isLessOrEqual(Version version) | 
| boolean | Version. isLessThan(Version version) | 
| boolean | Version. isUnknownOrGreaterOrEqual(Version version) | 
| boolean | Version. isUnknownOrGreaterThan(Version version) | 
| boolean | Version. isUnknownOrLessOrEqual(Version version) | 
| boolean | Version. isUnknownOrLessThan(Version version) | 
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