> ## Documentation Index > Fetch the complete documentation index at: https://cantonfoundation-update-ref-tables.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # PackageReferenceOuterClass.PriorTopologySerial > The serial of last ``VettedPackages`` topology transaction on a given participant and synchronizer. Protobuf type com.daml.ledger.api.v2.PriorTopologySerial ## PackageReferenceOuterClass.PriorTopologySerial Upstream docs: [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html) **Signature** ```text theme={"theme":{"light":"github-light","dark":"github-dark"}} public static final class PackageReferenceOuterClass.PriorTopologySerial extends com.google.protobuf.GeneratedMessageV3 implements PackageReferenceOuterClass.PriorTopologySerialOrBuilder ``` **Members** | Docs | Member | Introduced | Deprecated | Removed | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------ | ---------- | ---------- | ------- | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#NO_PRIOR_FIELD_NUMBER) | `NO_PRIOR_FIELD_NUMBER` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#PRIOR_FIELD_NUMBER) | `PRIOR_FIELD_NUMBER` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#equals%28java.lang.Object%29) | `equals(Object)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getDefaultInstance%28%29) | `getDefaultInstance()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getDefaultInstanceForType%28%29) | `getDefaultInstanceForType()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getDescriptor%28%29) | `getDescriptor()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getNoPrior%28%29) | `getNoPrior()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getNoPriorOrBuilder%28%29) | `getNoPriorOrBuilder()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getParserForType%28%29) | `getParserForType()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getPrior%28%29) | `getPrior()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getSerialCase%28%29) | `getSerialCase()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#getSerializedSize%28%29) | `getSerializedSize()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#hasNoPrior%28%29) | `hasNoPrior()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#hasPrior%28%29) | `hasPrior()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#hashCode%28%29) | `hashCode()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#internalGetFieldAccessorTable%28%29) | `internalGetFieldAccessorTable()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#isInitialized%28%29) | `isInitialized()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#newBuilder%28%29) | `newBuilder()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#newBuilder%28com.daml.ledger.api.v2.PackageReferenceOuterClass.PriorTopologySerial%29) | `newBuilder(PackageReferenceOuterClass.PriorTopologySerial)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#newBuilderForType%28%29) | `newBuilderForType()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#newBuilderForType%28com.google.protobuf.GeneratedMessageV3.BuilderParent%29) | `newBuilderForType(GeneratedMessageV3.BuilderParent)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#newInstance%28com.google.protobuf.GeneratedMessageV3.UnusedPrivateParameter%29) | `newInstance(GeneratedMessageV3.UnusedPrivateParameter)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseDelimitedFrom%28java.io.InputStream%29) | `parseDelimitedFrom(InputStream)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseDelimitedFrom%28java.io.InputStream,com.google.protobuf.ExtensionRegistryLite%29) | `parseDelimitedFrom(InputStream, ExtensionRegistryLite)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28java.nio.ByteBuffer%29) | `parseFrom(ByteBuffer)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28java.nio.ByteBuffer,com.google.protobuf.ExtensionRegistryLite%29) | `parseFrom(ByteBuffer, ExtensionRegistryLite)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28com.google.protobuf.ByteString%29) | `parseFrom(ByteString)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28com.google.protobuf.ByteString,com.google.protobuf.ExtensionRegistryLite%29) | `parseFrom(ByteString, ExtensionRegistryLite)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28com.google.protobuf.CodedInputStream%29) | `parseFrom(CodedInputStream)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28com.google.protobuf.CodedInputStream,com.google.protobuf.ExtensionRegistryLite%29) | `parseFrom(CodedInputStream, ExtensionRegistryLite)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28java.io.InputStream%29) | `parseFrom(InputStream)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28java.io.InputStream,com.google.protobuf.ExtensionRegistryLite%29) | `parseFrom(InputStream, ExtensionRegistryLite)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28byte%5B%5D%29) | `parseFrom(byte[])` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parseFrom%28byte%5B%5D,com.google.protobuf.ExtensionRegistryLite%29) | `parseFrom(byte[], ExtensionRegistryLite)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#parser%28%29) | `parser()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#toBuilder%28%29) | `toBuilder()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/PackageReferenceOuterClass.PriorTopologySerial.html#writeTo%28com.google.protobuf.CodedOutputStream%29) | `writeTo(CodedOutputStream)` | `3.5.6` | - | - |