milvus-sdk-java/CHANGELOG.md

Changelog

milvus-sdk-java 2.6.5 (2025-09-30)

Feature

• Support Struct type field
• Support Timestamptz type field
• Support Goemetry type field
• Add MilvusClientV2.updateReplicateConfiguration() for new CDC server

Improvement

• Add parameter "databaseName" for the following requests: GetCollectionStatsReq, GetLoadStateReq, HasCollectionReq, ListCollectionsReq, ReleaseCollectionReq, RenameCollectionReq, DropIndexReq, ListIndexesReq, CreatePartitionReq, DropPartitionReq, GetPartitinStatsReq, HasPartitionReq, ListPartitionsReq, LoadPartitionsReq, ReleasePartitionsReq, CompactReq, FlushReq, GetPErsistentSegmentInfoReq, GetQuerySegmentInfoReq,
• Increase ClientPool default value of maxTotal from 50 to 1000, maxTotalPerKey from 10 to 50, maxIdlePerKey from 5 to 10

Bug

• Fix a bug of delete() that databaseName of DeleteReq doesn't work

milvus-sdk-java 2.5.14 (2025-09-30)

Improvement

• Add parameter "databaseName" for the following requests: GetCollectionStatsReq, GetLoadStateReq, HasCollectionReq, ListCollectionsReq, ReleaseCollectionReq, RenameCollectionReq, DropIndexReq, ListIndexesReq, CreatePartitionReq, DropPartitionReq, GetPartitinStatsReq, HasPartitionReq, ListPartitionsReq, LoadPartitionsReq, ReleasePartitionsReq, CompactReq, FlushReq, GetPErsistentSegmentInfoReq, GetQuerySegmentInfoReq,
• Increase ClientPool default value of maxTotal from 50 to 1000, maxTotalPerKey from 10 to 50, maxIdlePerKey from 5 to 10

Bug

• Fix a bug of delete() that databaseName of DeleteReq doesn't work

milvus-sdk-java 2.6.4 (2025-09-17)

Feature

• Support MINHASH_LSH/IVF_RABITQ index type
• Support MHJACCARD metric type
• Support passing request-id and unixmsec to server for MilvusClientV2
• Support batchDescribeCollection() interface for MilvusClientV2
• Support FunctionScore, multi-reranker for search/hybridSearch of MilvusClientV2
• MilvusClientPool supports different ConnectConfig for different key

Improvement

• Return shards number of each collection for MilvusClientV2.listCollections()

Bug

• Fix a defect of MilvusClientV2.query() that always requires an empty filter expression
• Fix a bug of QueryIterator that offset value cannot exceed 16384

milvus-sdk-java 2.5.13 (2025-09-17)

Feature

• Support passing request-id and unixmsec to server for MilvusClientV2
• MilvusClientPool supports different ConnectConfig for different key

Bug

• Fix a defect of MilvusClientV2.query() that always requires an empty filter expression
• Fix a bug of QueryIterator that offset value cannot exceed 16384

milvus-sdk-java 2.6.3 (2025-08-20)

Improvement

• Support stageManager & stageFileManager

milvus-sdk-java 2.6.2 (2025-08-14)

Improvement

• Alias interface support database
• Allows upsert when autoid=true for MilvusClientV1
• Support more Rerank types for hybridSearch(), including decay and model rerank
• Support ignoring growing segments for MilvusClientV2.query()
• Use cached collection schema for query by ids to avoid calling describe_collection()
• Add objectUrls parameter for bulkimport interfaces

• Add a method to return the current used database name for MilvusClientV2

  Bug

• Fix a bug of Function.multiAnalyzerParams

• Fix a bug of FunctionType.TEXTEMBEDDING

milvus-sdk-java 2.5.12 (2025-08-14)

Improvement

• Alias interface support database
• Allows upsert when autoid=true for MilvusClientV1
• Support ignoring growing segments for MilvusClientV2.query()
• Use cached collection schema for query by ids to avoid calling describe_collection()
• Add objectUrls parameter for bulkimport interfaces

• Add a method to return the current used database name for MilvusClientV2

  Bug

• Fix a bug of Function.multiAnalyzerParams

milvus-sdk-java 2.6.1 (2025-07-15)

Feature

• Support uploading file to Zilliz Cloud Stage for BulkWriter

Bug

• Fix a bug of SearchResultsWrapper.getRowRecords() that returns wrong data for output fields
• Fix a null pointer bug of CreateCollectionReq.indexParam()
• Fix a no such key bug of BulkWriter
• Fix potential bugs of ConsistencyLevel when dml/dql requests across databases
• Fix potential bugs of collection schema cache when dml requests across databases

Improvement

• Deprecate topK for search/hybridSearch/iterator, replaced with limit
• Deprecate expr of AnnSearchReq, replaced with filter
• Add database parameter for HybridSearchParam/QueryParam/SearchParam in V1
• Add database parameter for LoadCollectionReq/RefreshLoadReq in V2
• Avoid exception when search result is empty
• BulkWriter supports Int8Vector

milvus-sdk-java 2.5.11 (2025-07-15)

Feature

• Support uploading file to Zilliz Cloud Stage for BulkWriter

Bug

• Fix a bug of SearchResultsWrapper.getRowRecords() that returns wrong data for output fields
• Fix a bug of flush that timestamp is not correctly passed
• Fix a null pointer bug of CreateCollectionReq.indexParam()
• Fix a no such key bug of BulkWriter
• Fix potential bugs of ConsistencyLevel when dml/dql requests across databases
• Fix potential bugs of collection schema cache when dml requests across databases

Improvement

• Deprecate topK of search/hybridSearch/iterator, replaced with limit
• Deprecate expr of AnnSearchReq, replaced with filter
• Add database parameter for HybridSearchParam/QueryParam/SearchParam in V1
• Add database parameter for LoadCollectionReq/RefreshLoadReq in V2
• Avoid exception when search result is empty
• Support jsonPath index
• Support run analyzer by collection and Field

milvus-sdk-java 2.6.0 (2025-06-13)

Feature

• Support jsonPath index
• Support addCollectionField()
• Support FunctionType.RERANK
• Support run analyzer by collection and Field
• Support Int8Vector

Bug

• Fix a bug of flush that timestamp is not correctly passed

milvus-sdk-java 2.5.10 (2025-06-05)

Feature

• Support dropCollectionFieldProperties interface
• Support multi-language analyzer

Bug

• Reformat SearchResult/IDScore print content to show primary key
• Fix a bug of listIndexes()

milvus-sdk-java 2.5.9 (2025-05-09)

Feature

• Support runAnalyzer() interface

Bug

• Fix a bug that index property was not correctly passed
• Fix an exception to LocalBulkWriter in Java 24 env

Improvement

• Add dbName for DescribeIndexReq
• Bump protobuf/protoc version from 3.24.0 to 3.25.5
• Bump Gson version from 2.10.0 to 2.13.1
• describeCollection returns collection createUtcTime
• Add a static method CreateSchema() to replace non-static method createSchema() in MilvusClientV2

milvus-sdk-java 2.5.8 (2025-04-25)

Feature

• Support getPersistentSegmentInfo/getQuerySegmentInfo interfaces for V2
• Support transferNode interface for V2
• Support checkHealth interface for V2

milvus-sdk-java 2.5.7 (2025-04-09)

Bug

• Fix a compatible bug with milvus v2.5.8 that QueryResp.QueryResult doesn't return primary key
• Fix a bug of nullable Array field that null value should be returned instead of an empty list

Improvement

• Add proxy setting for connection to milvus
• Support offset parameter for hybridSearch() interface
• Add options parameter for bulkImport() interface

milvus-sdk-java 2.5.6 (2025-03-20)

Improvement

• Optimize MilvusClientV2 search/query to support databaseName
• Add SearchIteratorV2 to get better performance and recall compare to old SearchIterator
• Add sync parameter for loadCollection/loadPartitions/createIndex

milvus-sdk-java 2.5.5 (2025-03-07)

Feature

• Support HNSW_PQ/HNSW_SQ/HNSW_PRQ
• Support describeReplicas() interface
• BulkWriter supports nullable/default_value

Improvement

• Add shardsNum for describeCollection
• LoadPartitions support replicas
• Optimize BulkWriter to reduce memory usage

milvus-sdk-java 2.5.4 (2025-01-09)

Improvement

• HybridSearch supports full text search

milvus-sdk-java 2.5.3 (2024-12-31)

Feature

• Support alterCollectionField interface for V2
• Support refreshLoad/getPartitionStats interfaces for V2
• Support dropIndexProperties/dropDatabaseProperties/dropCollectionProperties for V2
• Support resource group interfaces for V2

Improvement

• Return recall rate in search result for V2
• QueryIterator/SearchIterator support retry

milvus-sdk-java 2.5.2 (2024-12-11)

Improvement

• Split milvus Java SDK to two packages to reduce dependency complexity

Bug

• Fix a bug of listPrivilegeGroups

milvus-sdk-java 2.5.1 (2024-12-04)

Improvement

• Support upsert items with auto-id primary key

Bug

• Critical: Fix a bug that dynamic values are skipped with enableDynamicField is true

milvus-sdk-java 2.5.0 (2024-11-26)

Feature

• BulkWriter supports JSON/CSV format
• Add new RBAC interfaces grantPrivilegeV2/revokePrivilegeV2
• Support doc-in-doc-out function(embedded BM25 in server-side)
• Support varchar analyzer (tokenizer in server-side)
• Support nullable and default value
• Support expression template

Improvement

• QueryIterator/SearchIterator supports mvcc
• ClientPool throws exception if fail to create/get clients

milvus-sdk-java 2.4.11 (2025-04-09)

Bug

• Fix a bug that consistency level is missed for createCollection()
• Return shards_num for describeCollection()

milvus-sdk-java 2.4.10 (2024-12-31)

Feature

• Support alterCollectionField interface for V2
• Support refreshLoad/getPartitionStats interfaces for V2
• Support dropIndexProperties/dropDatabaseProperties/dropCollectionProperties for V2
• Support resource group interfaces for V2

• milvus-sdk-java 2.4.9 (2024-11-26)

Feature

• BulkWriter supports JSON format
• Add new RBAC interfaces grantPrivilegeV2/revokePrivilegeV2

Improvement

• ClientPool throws exception if fail to create/get clients

milvus-sdk-java 2.4.8 (2024-10-31)

Improvement

• Fix a conflict bug with Gson v2.11.0
• Support group by for hybrid search

Bug

• Fix a dimension check error for binary vector
• Fix a null pointer bug for query iterator

milvus-sdk-java 2.4.7 (2024-10-25)

Improvement

• Support setting properties for V2 CreateCollectionReq
• Support Session consistency level for V1 and V2
• Return entities ids for V2 InsertResp

Bug

• Fix a RpcDeadline bug for V2

Feature

• Support flush() interface for V2
• Support compact()/getCompactionState() interfaces for V2

milvus-sdk-java 2.4.6 (2024-10-18)

Improvement

• Refine BulkWriter/BulkImport interfaces
• Remove Jackson dependency

Bug

• Fix "one second timeout issue" of pre-connection

milvus-sdk-java 2.4.5 (2024-10-11)

Feature

• Support partial load
• Support clustering key

Bug

• Fix a bug for MilvusClientV2 that index parameters were not passed to server correctly

milvus-sdk-java 2.4.4 (2024-09-19)

Improvement

• Upgrade the bulkWriter cloud API call from v1 to v2
• Improve usability of AlterCollectionReq & CreateCollectionReq
• Check connection when MilvusClientV2 is initialized
• Support customized SSLContext for MilvusClientV2
• Reduce time-consuming log of search/insert/upsert for MilvusClientV1

Bug

• Fix a bug or QueryIterator with special expression

milvus-sdk-java 2.4.3 (2024-08-09)

Feature

• Implement database related interfaces including createDatabase/dropDatabase/alterDatabase for MilvusClientV2
• Implement getServerVersion interface for MilvusClientV2
• Provide client/connection pool for V1 and V2

Improvement

• Implement retry machinery for MilvusClientV2

Bug

• Fix thread-safe bug of insert/upsert interfaces for MilvusClientV2
• Fix a bug of describeCollection that collection properties not returned for MilvusClientV2

milvus-sdk-java 2.4.2 (2024-07-11)

Feature

• Support AlterDatabase/DescribeDatabase for V1
• Cache collection schema in client side for insert/upsert interfaces
• Support AlterCollection/AlterIndex for MilvusClientV2
• Support propagate traceid from client
• BulkWriter supports SparseVector/Float16Vector/BFloat16Vector
• Support SparseVector/Float16Vector/BFloat16Vector for MilvusClientV2
• Support GroupBy search for MilvusClientV2
• Support SearchIterator/QueryIterator for MilvusClientV2
• Optimize DescribeIndex interface of MilvusClientV2
• Optimize DescribeCollection interface of MilvusClientV2
• Support enableVirtualStyleEndpoint for BulkWriter

Bug

• Fix a bug of max_capacity range

Break changes

• Replace FastJSON by Gson according to issue #878. InsertParam.withRows()/UpsertParam.withRows()/InsertReq.data() are redefined.
• Rename "distance" to "score" for search result. SearchResp.distance() of V2 is renamed to be score().

milvus-sdk-java 2.4.1 (2024-05-11)

Bug

• Unable to connect Zilliz cloud new severless instances
• SearchIterator cannot work for Varchar type primary key
• Fix some minor bugs of SearchIterator

milvus-sdk-java 2.4.0 (2024-04-22)

Feature

• Support new index type INVERTED/GPU_CAGRA
• Support SparseFloatVector
• Support Float16Vector/BFloat16Vector
• Support SearchIterator/QueryIterator
• Support multiple vector fields in one collection
• Support hybrid-search on multiple vector fields

Improvement

• Upgrade dependencies to fix some CVEs
• Provide new methods withFloatVectors/withBinaryVectors/withFloat16Vectors/withBFloat16Vectors/withSparseFloatVectors for SearchParam to explicitly input different type vectors

milvus-sdk-java 2.3.11 (2024-10-11)

Bug

• Fix a bug for MilvusClientV2 that index parameters were not passed to server correctly

milvus-sdk-java 2.3.10 (2024-09-19)

Improvement

• Improve usability of CreateCollectionReq
• Check connection when MilvusClientV2 is initialized
• Reduce time-consuming log of search/insert/upsert for MilvusClientV1

Bug

• Fix a bug or QueryIterator with special expression

milvus-sdk-java 2.3.9 (2024-08-09)

Feature

• Implement database related interfaces including createDatabase/dropDatabase/listDatabases for MilvusClientV2
• Implement getServerVersion interface for MilvusClientV2
• Provide client/connection pool for V1 and V2

Improvement

• Implement retry machinery for MilvusClientV2

Bug

• Fix thread-safe bug of insert/upsert interfaces for MilvusClientV2

milvus-sdk-java 2.3.8 (2024-07-11)

Feature

• Support SearchIterator/QueryIterator for MilvusClientV2
• Optimize DescribeIndex interface of MilvusClientV2
• Optimize DescribeCollection interface of MilvusClientV2
• Support enableVirtualStyleEndpoint for BulkWriter

Bug

• Fix a bug of max_capacity range

Break changes

• Replace FastJSON by Gson according to issue #878. InsertParam.withRows()/UpsertParam.withRows()/InsertReq.data() are redefined.
• Rename "distance" to "score" for search result. SearchResp.distance() of V2 is renamed to be score().

milvus-sdk-java 2.3.7 (2024-05-11)

Bug

• Unable to connect Zilliz cloud new severless instances
• SearchIterator cannot work for Varchar type primary key
• Fix some minor bugs of SearchIterator

milvus-sdk-java 2.3.6 (2024-04-22)

Feature

• Support SearchIterator/QueryIterator

Improvement

• Upgrade dependencies to fix some CVEs

milvus-sdk-java 2.3.5 (2024-03-29)

Feature

• New MilvusClientV2 class to encapsulate RPC interfaces for good usability
• Support ListAlias interface
• Provide a BulkWriter tool for easily generating data files for import() interface

Improvement

• Replace grpc-netty to grpc-netty-shared
• Support creating index without specifying metricType and indexType
• Support searching without specifying metricType
• Fix a crash bug of SearchResutsWrapper when primary key is varchar type
• Fix a bug of retry that doesn't return server errors
• Fix some vulnerabilities

milvus-sdk-java 2.3.4 (2024-01-02)

Improvement

• Support backoff retry for RPC interfaces(consist with pymilvus)
• Upgrade grpc from 1.46 to 1.59.1
• Add withPartitionName for DeleteIdsParam

milvus-sdk-java 2.3.3 (2023-11-08)

Feature

• Support resource group interfaces

milvus-sdk-java 2.3.2 (2023-10-25)

Feature

• Support Array type field(new feature of Milvus v2.3.2)

Improvement

• Fix a bug that consistency level is ignored in search() interface
• Fix a bug the MilvusMultiServiceClient cannot specify database name
• Fix a bug that high-level search API can only return the first vector's results
• Upgrade dependencies to fix some vulnerabilities
• Set log level for MilvusMultiServiceClient in runtime
• Support insert dynamic values by column-based

milvus-sdk-java 2.3.1 (2023-09-05)

Improvement

• Support COSINE metric type
• Fix a bug that could not get binary vectors from search result
• Fix a bug of high-level get/delete api

milvus-sdk-java 2.3.0 (2023-08-24)

Feature

• Support Upsert interface
• New GPU index type(only works when server is GPU mode): GPU_IVF_FLAT, GPU_IVF_PQ

Deprecated

• No longer support index: ANNOY, RHNSW_FLAT, RHNSW_PQ, RHNSW_SQ
• No longer support metric: TANIMOTO, SUPERSTRUCTURE, SUBSTRUCTURE

milvus-sdk-java 2.2.15 (2023-11-08)

Feature

• Support resource group interfaces

Improvement

• Fix a bug that high-level search API can only return the first vector's results
• Upgrade dependencies to fix some vulnerabilities
• Support insert dynamic values by column-based

milvus-sdk-java 2.2.14 (2023-09-15)

Improvement

• Fix the bug that consistency level is ignored in search() interface
• Set log level for MilvusMultiServiceClient in runtime
• Fix the bug the MilvusMultiServiceClient cannot specify database name

milvus-sdk-java 2.2.13 (2023-09-04)

Improvement

• Fix a bug that could not get binary vectors from search result
• Fix a bug of high-level get/delete api

milvus-sdk-java 2.2.12 (2023-08-10)

Improvement

• Fix a bug that could not create index for scalar field with Milvus v2.2.12(change IndexType.SORT to IndexType.STL_SORT)

milvus-sdk-java 2.2.11 (2023-08-09)

Improvement

• Fix a bug that could not create index for VARCHAR field with Milvus v2.2.12

Deprecated

• withGuaranteeTimestamp()/withGracefulTime() are marked as Deprecated for SearchParam/QueryParam. From Milvus v2.2.9, the time settings are determined by the server side.

milvus-sdk-java 2.2.10 (2023-08-08)

Feature

• Support TLS connection
• Support retry for interface

milvus-sdk-java 2.2.9 (2023-07-03)

Improvement

• Fix a bug of listBulkInsertTasks()
• Set default shard number to be 1

milvus-sdk-java 2.2.8 (2023-06-29)

Improvement

• Fix bug of high-level API
• Add index type SORT for scalar field
• Set log level in runtime

milvus-sdk-java 2.2.7 (2023-06-21)

Improvement

• Provide easy to used high-level interfaces
• Add more examples

milvus-sdk-java 2.2.6 (2023-06-05)

Improvement

• Support JSON type field
• Support dynamic field
• Support partition key
• Support database management: createDatabase/dropDatabase/listDatabases

milvus-sdk-java 2.2.5 (2023-04-04)

Improvement

• Implement flushAll() interface
• Add ignoreGrowing flag for query/search

milvus-sdk-java 2.2.4 (2023-03-26)

Improvement

• Implement alterCollection() interface
• Use the same grpc version v1.46.0 as milvus-proto repo

milvus-sdk-java 2.2.3 (2023-02-11)

Improvement

• Implement getLoadState() interface
• Add refresh parameter to load() interface
• Add getProcess() for bulkinsert task state
• Fix example error

milvus-sdk-java 2.2.2 (2023-01-04)

Bug

• Fix search param offset not avaliable bug

milvus-sdk-java 2.2.1 (2022-11-22)

Improvement

• Support pagination for query() interface
• Upgrade commons-text to 1.10.0 to avoid security vulnerabilities

milvus-sdk-java 2.2.0 (2022-11-18)

Improvement

• Supports Role-Based Access Control (RBAC)
• Support bulk insert data
• Support DISKANN index

milvus-sdk-java 2.1.0 (2022-08-31)

Bug

• Fix keepAliveTimeout timeunit error for ConnectParam

Improvement

• Remove withGuaranteeTimestamp/withGracefulTime of SearchParam/QueryParam. User only need to provide consistency level
• Change the default consistency level from Strong to Bounded in SearchParam/QueryParam

milvus-sdk-java 2.1.0-beta4 (2022-07-22)

Feature

• Refine the InsertParam for better usability, no need to specify data type for each field
• Remove the calcDistance interface because no one use this interface

milvus-sdk-java 2.1.0-beta3 (2022-07-15)

Feature

• Specify index name to replace field name in DescribeIndexParam/GetIndexBuildProgressParam/GetIndexStateParam
• Remove the index type IVF_HNSW(no longer supported)

milvus-sdk-java 2.1.0-beta2 (2022-07-12)

Feature

• Support search consistency level

milvus-sdk-java 2.1.0-beta1 (2022-07-09)

Feature

• Support Varchar type field
• Implement authentication interfaces: CreateCredential/UpdateCredential/DeleteCredential/ListCredUsers
• Multiserver failover control(optional function)

milvus-sdk-java 2.0.4 (2022-02-14)

Feature

• #260 - Implement async interfaces for insert/search/query
• Expose flush() interface

milvus-sdk-java 2.0.3 (2022-01-27)

Improvement

• #255 - Rename io.milvus.Response to io.milvus.response

milvus-sdk-java 2.0.2 (2022-01-24)

Improvement

• #250 - Upgrade log4j-core to 2.17.1

milvus-sdk-java 2.0.1 (2022-01-18)

Improvement

• #248 - Pass travel timestamp and guarantee timestamp for query/search interface

milvus-sdk-java 2.0.0 (2021-12-31)

Feature

• #183 - java sdk for milvus 2.0

milvus-sdk-java 0.8.5 (2020-08-26)

Feature

• #128 - GRPC timeout support

milvus-sdk-java 0.8.3 (2020-07-15)

Improvement

• #117 - Remove isConnect() API

milvus-sdk-java 0.8.0 (2020-05-15)

Feature

• #93 - Add/Improve getVectorByID, collectionInfo and hasPartition API
• #2295 - Rename SDK interfaces

milvus-sdk-java 0.7.0 (2020-04-15)

Feature

• #261 - Integrate ANNOY into Milvus
• #1828 - Add searchAsync / createIndexAsync / insertAsync / flushAsync / compactAsync API

milvus-sdk-java 0.6.0 (2020-03-31)

Bug

• #1641 - Fix incorrect error logging message
• #1642 - Fix compilation error of ByteBuffer

Feature

• #1603 - Add binary metrics: Substructure & Superstructure

milvus-sdk-java 0.5.0 (2020-03-11)

milvus-sdk-java 0.4.1 (2019-12-16)

Bug

• #78 - Partition tag not working when searching

milvus-sdk-java 0.4.0 (2019-12-7)

Bug

• #74 - Partition tag not working when inserting

Improvement

• #61 - Add partition
• #70 - Add IndexType IVF_PQ
• #72 - Add more getters in ShowPartitionResponse
• #73 - Add @Deprecated for DateRanges in SearchParam

milvus-sdk-java 0.3.0 (2019-11-13)

Bug

• #64 - Search failed with exception if search result is empty

Improvement

• #56 - Add keepalive and idleTimeout settings
• #57 - add ok() in other types of Response
• #62 - Change GRPC proto (and related code) to increase search result's transmission speed
• #63 - Make some functions and constructors package-private if necessary

milvus-sdk-java 0.2.2 (2019-11-4)

Improvement

• #49 - Add waitTime option in ConnectParam
• #51 - Change connect waitTime to timeout
• #52 - Change IVF_SQ8H to IVF_SQ8_H

milvus-sdk-java 0.2.0 (2019-10-21)

Bug

• #42 - fix search result validation
  

Improvement

• #3 - Force channel to request connection in connect() and some code cleanup
• #6 - Update pom & fix deleteByRange error message & update unittest
• #8 - change default timeout to 24 hour
• #9 - Add more getters in SearchResponse & add normalize method in unittest
• #10 - fix connected() & add port range check & add @nonnull annotation & set maxInboundMessageSize
• #17 - change IndexParam in DescribeIndexResponse to Index
• #27 - change proto package to io.milvus.grpc
• #32 - fix README format
• #35 - Fix client version in readme and src code
• #38 - Update examples
• #40 - Remove timeout parameter & Several API changes
  

Feature

• #16 - add IVF_SQ8_H index type

Task

• #1 - First implementation
• #21 - Add javadoc
• #23 - Format code with Google-java-style and add Apache 2.0 license header
• #28 - add examples
• #29 - add README