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This in an LTS release.

It fixes a bug with database resolution when using ExecutableQuery with neo4j scheme over Bolt 5.8 or higher.

5.28 API documentation

👏 Improvements

Ensure database name on pipelined begin is handled appropriately #1615

`v5.28.0`

This in an LTS release.

A new feature in this release is home database resolution cache. Its objective is to reduce the amount of Bolt exchange roundtrips for home database resolution when Bolt protocol 5.8 or higher is used. It is not exposed in the public API and is meant to be an optimisation.

5.28 API documentation

⭐ New Features

Introduce home database resolution cache #1600

👏 Improvements

Improve transaction failure handling #1598
Update ExponentialBackoffRetryLogic #1603
Fix thread safety in Neo4jBookmarkManager #1604
Update Neo4jException.gqlCause #1608
Add support for Bolt Protocol Handshake Manifest v1 #1605
Internal updates #1590 #1596 #1609 #1610 #1611 #1612 #1613

🔧 Dependency Management

Update dependencies #1614

`v5.27.0`

This release moves the mTLS support to GA status and also brings general improvements and dependency updates.

5.27 API documentation

👏 Improvements

Move mTLS support to GA status #1587
Update handling of cancellation state in reactive result #1583
Update result handlers by refactoring the implementation #1585
Notify handler of all errors in RoutedBoltConnection #1588
Ensure BoltConnection does not send signals after summaries are finished #1592

🔧 Dependency Management

Update dependencies #1584 #1593

`v5.26.3`

This is a patch release that includes improvements in routing handling.

👏 Improvements

Update RoutedBoltConnectionProvider #1582

`v5.26.2`

This is a patch release that includes general improvements and dependency updates.

👏 Improvements

Allow subsequent errors in BoltConnectionWithAuthTokenManager #1579
Update RxResultCursorImpl #1580

🔧 Dependency Management

Update dependencies #1581

`v5.26.1`

This is a patch release that includes Bolt refactoring and dependency updates.

👏 Improvements

Bolt refactoring #1560 #1574 #1576

🔧 Dependency Management

Update dependencies #1577

`v5.26.0`

This release brings a preview support for GQL Errors.

With this update, Neo4jException gets the following additional GQL metadata:

GQLSTATUS
GQLSTATUS description
GQL diagnostic record
GQL error cause

The additional metadata is exposed via the following new methods respectively:

String gqlStatus();

String statusDescription();

Map<String, Value> diagnosticRecord();

Optional<Neo4jException> gqlCause();

In addition, the following getters have been added for extracting a vendor-specific classification from the GQL diagnostic record:

Optional<GqlStatusErrorClassification> classification();

Optional<String> rawClassification();

⭐ New Features

Add preview support for GQL Errors #1559

🔧 Dependency Management

Update dependencies #1573

`v5.25.0`

This update includes a general optimisation and dependency updates.

5.25 API documentation

👏 Improvements

Delete results from transaction results holder when fully consumed #1571

🔧 Dependency Management

Update dependencies #1572

`v5.24.0`

This is a planned minor update release that includes improvements and dependency updates.

5.24 API documentation

👏 Improvements

Add host-only factory using default port to ServerAddress #1566
Add NotificationClassification.SCHEMA #1567

🔧 Dependency Management

Update dependencies #1568

`v5.23.0`

This release introduces a Bolt 5.6 support and includes dependency updates.

5.23 API documentation

⭐ New Features

Add Bolt 5.6 #1562

🔧 Dependency Management

Update dependencies #1563

`v5.22.0`

This release introduces a preview support for GQL-status objects and includes dependency updates.

5.22 API documentation

⭐ New Features

Add support for GQL-status objects #1555

🔧 Dependency Management

Update dependencies #1556

`v5.21.0`

This is a planned minor update release that includes dependency updates.

5.21 API documentation

🔧 Dependency Management

Update dependencies #1552

`v5.20.0`

This is a planned minor update release that includes dependency updates.

5.20 API documentation

🔧 Dependency Management

Update dependencies #1550

`v5.19.0`

This release introduces mTLS support preview and includes dependency updates.

5.19 API documentation

⭐ New Features

Introduce mTLS support #1543

🔧 Dependency Management

Update dependencies #1547

`v5.18.0`

This is a planned minor update release that includes a new feature and a general improvement.

5.18 API documentation

⭐ New Features

Introduce an override AuthToken support to ExecutableQuery #1532

👏 Improvements

Add clarification to the driver close and closeAsync methods #1537

✅ Testkit

TestKit: Skip IPv6 test for now #1535

🔧 Dependency Management

Update dependencies #1538
Add commons-codec 1.16.1 #1539

`v5.17.0`

This is a planned minor update release that includes several general improvements.

5.17 API documentation

👏 Improvements

Update bolt agent language details handling #1530
Fix Bolt handshake write handling and timeout management #1528
Fix inline logging example #1523
Clarify behavior of executeWriteWithoutResult() #1524

🔧 Dependency Management

Update dependencies #1531

`v5.16.0`

This is a planned minor update release that includes 2 general improvements.

5.16 API documentation

👏 Improvements

Add transaction timeout and metadata options to QueryConfig #1506
Fix liveness checking for unresponsive connections #1514

🔧 Dependency Management

Update dependencies #1526

`v5.15.0`

This is a planned minor update release that includes several general improvements.

5.15 API documentation

👏 Improvements

Rename reflection-config.json to reflect-config.json #1507
Update build-resources to 5.13.0 and update license headers #1497

✅ Testkit

Update Dockerfile #1501
Update TestkitRequestProcessorHandler to adhere to req/res pattern #1500
Update ResponseQueueHanlder to handle multiple requests sequentially #1503

🔧 Dependency Management

Update dependencies #1508

`v5.14.0`

This release makes the AuthToken rotation and session auth support API GA. #1495

In addition, 2 new notification categories have been introduced. Please note that a compatible server version is required to use the new categories. #1490

5.14 API documentation

👏 Improvements

Make AuthToken rotation and session auth support API GA #1495
Add SECURITY and TOPOLOGY notification categories #1490
Migrate to 2023.2.3 inspection engine #1494

🔧 Dependency Management

Update dependencies #1496

`v5.13.0`

This is a planned minor update release that includes a new feature and several general improvements.

5.13 API documentation

⭐ New Features

Introduce Api Telemetry #1487

👏 Improvements

Improve transaction timeout docs #1486
Docs: improve wording around transaction timeout #1488

🔧 Dependency Management

Update dependencies #1489

`v5.12.0`

This release includes an optimisation that removes a network roundtrip in the ExecutableQuery. #1482

By removing the round trip when using the ExecutableQuery the network overhead of running the query is reduced by up to 1/3rd. Most benefit will be seen when running lots of single queries with few records that complete quickly on the server.

In addition, the token rotation API has been updated. #1481

5.12 API documentation

👏 Improvements

Introduce BEGIN message pipelining in ExecutableQuery #1482
Update AuthToken rotation to support more auth types #1481
Update JUnit to 5.10.0, Surefire to 3.1.2 and Failsafe to 3.1.2 #1473
Refactoring #1474 #1475 #1476 #1477
Introduce inspection profile #1478

🔧 Dependency Management

Update dependencies #1483

`v5.11.0`

This update introduces cancellation support to the ReactiveSession.run methods. This aims to ensure that the transaction is rolled back and the acquired connection is returned back to the connection pool. #1457

In addition, the driver will round up sub millisecond values in the transaction timeout configuration. #1451

Furthermore, an experimental BlockHound integration has been introduced. #1450

5.11 API documentation

👏 Improvements

Update sub millisecond transaction timeout handling #1451
Add support for cancellation on reactive session run #1457
Improve explicit transaction terminated state handling #1445
Ensure transaction prevents new query runs when it is closing #1446
Add experimental BlockHound integration #1450
Make a copy of bookmarks in SessionConfig builder #1465
Refactoring #1447 #1448 #1449 #1452 #1454 #1455 #1458 #1459 #1460 #1462 #1463 #1466 #1467 #1468 #1469 #1470

🔧 Dependency Management

Update dependencies #1471

`v5.10.0`

This is a planned minor update release that includes several general improvements.

5.10 API documentation

👏 Improvements

Notify handlers of a failure on graceful pool closure #1442
Fix logging IP version 6 addresses with scope in RediscoveryImpl #1435
Update Maven to 3.9.2 #1434
Update version #1440
Update version to 5.9-SNAPSHOT #1431

🔧 Dependency Management

Update dependencies #1438
Set Logback to 1.2.12 #1441

`v5.9.0`

This is a planned minor update release that includes a new feature and several general improvements.

5.9 API documentation

⭐ New Features

Introduce bolt_agent #1424

👏 Improvements

Set versions-maven-plugin to 2.15.0 #1420
Throw exception upon returning Result in managed transaction API #1422
Update invalid bookmark tests #1426

🔧 Dependency Management

Update dependencies #1430

`v5.8.0`

This release introduces a new preview feature called AuthToken rotation and session auth support. See a dedicated discussion for more details.

In addition, the following APIs have been moved out of the preview status to GA:

Bookmark Manager API
Driver Level Queries API

5.8 API documentation

⭐ New Features

Introduce AuthToken rotation and session auth support #1380 #1409
Make Bookmark Manager API GA #1408
Make Driver Level Queries API GA #1407

👏 Improvements

Include NotificationConfig on BEGIN message for bolt scheme #1404
Update version to 5.8-SNAPSHOT #1403
Fix build warnings #1418

✅ Testkit

Allow null access mode in Testkit NewSession #1405
Introduce Testkit backend logging level support #1406
Update Teskit Dockerfile #1412

🔧 Dependency Management

Update dependencies #1417

`v5.7.0`

The main feature of the new release is an ability to specify notifications configuration.

It is now possible to configure a minimum notification severity level and/or a set of disabled notification categories to manage notifications supplied by the server both on the driver level and on the session level. It is also possible to disable all notifications.

For more details on this feature, please see the #1396 update and the API documentation.

The org.neo4j.driver:neo4j-java-driver-all artifact includes an explicit module declaration for Java Platform Module System (JMPS).

5.7 API documentation

⭐ New Features

Introduce notification configuration, severity and category #1396

👏 Improvements

Introduce a preview feature status #1400
Seal AuthToken interface #1389
Export org.neo4j.driver.exceptions.value #1395
Align driver with latest revision of ExecuteQuery ADR #1377
Use moditect plugin to re-add module-info after it has been nuked by the shade plugin #1348
Make the shaded artifact compile as a module #1388
Update Maven SCM data #1384
Update version to 5.7-SNAPSHOT #1386
Update TemporalUtil.EXCLUDED_ZONE_IDS for testing #1392
Add temporary internal only reset capability #1394
[Internal] Allow interrupt for already interrupted transaction #1397

✅ Testkit

Fix skipped test name #1391
Remove whitelisted Testkit server configs #1399
TestKit: skip bolt handshake timeout tests #1398

🔧 Dependency Management

Update dependencies #1402

`v5.6.0`

This is a planned minor update release that includes several general improvements.

👏 Improvements

Unmark TypeSystem as experimental #1376
Update internal driver clock usage #1375
Rename Driver.queryBookmarkManager() to Driver.queryTaskBookmarkManager() #1373
Update clirr configuration to check against previous version #1381
Improve Javadoc #1382
Update version to 5.5-SNAPSHOT #1370

🔧 Dependency Management

Update dependencies #1383

`v5.5.0`

The main feature of this release is a new experimental API that offers a convenient query execution option within a managed transaction with automatic retries on errors eligible for retrying.

Sample usage:

var eagerResult = driver.queryTask("CREATE (n{field: $value}) RETURN n")
                    .withParameters(Map.of("value", "5"))
                    .execute();

In addition, it is also possible to provide a java.util.stream.Collector implementation to collect Records to a desired final value:

var result = driver.queryTask("UNWIND range(0, 5) as N RETURN N")
        .execute(Collectors.mapping(record -> record.get("N").asLong(), Collectors.toList()));

See the QueryTask documentation for more details.

If you would like to share your feedback on this new API, please see the following discussion.

⭐ New Features

Introduce managed query execution on Driver level #1330 #1367 #1369

👏 Improvements

Stop printing stacktrace in GraphDatabaseTest #1364

🔧 Dependency Management

Update dependencies #1368

`v5.4.0`

This is a planned minor update release.

👏 Improvements

Update supported versions in README #1363

🔧 Dependency Management

Update Mockito to 4.11.0 #1362

`v5.3.1`

This is a mainly an internal refinement release that brings several improvements and dependency updates.

👏 Improvements

Release connection on reactive beginTransaction cancellation #1341
Exclude test code in snyk code analysis #1344
Allow supplying a Rediscovery implementation #1350
Update Testkit tests Docker setup #1351
Make more error codes fail fast during the rediscovery #1354
Add 2 access options to Config and refactor DriverFactory #1356
Update maven-bundle-plugin to 5.1.8 #1357

✅ Testkit

TestKit backend: except txMeta as Cypher types #1349

🔧 Dependency Management

Update dependencies #1358

`v5.3.0`

This is a refinement release that brings several improvements and dependency updates.

The BookmarkManager API has been simplified by removing the need of specifying the database.

Please also see the NODES 2022 session recording that goes over the version 5 updates.

👏 Improvements

Update Bookmark Manager for no longer tracking per database #1335
Update SessionConfig.withDatabase documentation #1334 #1336 #1337
Fix shouldGetSystemUpdates test #1338
Update to 5.2-SNAPSHOT #1329

🔧 Dependency Management

Update dependencies #1339

`v5.2.0`

This is a refinement release that brings several new features, improvements and dependency updates.

This update introduces a new reactive session org.neo4j.driver.reactivestreams.ReactiveSession that is similar to the deprecated org.neo4j.driver.reactive.RxSession and includes improvements introduced with org.neo4j.driver.reactive.ReactiveSession.

Following these updates, the driver supports 2 reactive sessions:

org.neo4j.driver.reactive.ReactiveSession - uses Java Flow API
org.neo4j.driver.reactivestreams.ReactiveSession - uses Reactive Streams API

In addition, this update brings new methods for session instantiation. See the sample usage below:

var synchronousSession = driver.session(Session.class);
var asynchronousSession = driver.session(AsyncSession.class);
var reactiveSession1 = driver.session(org.neo4j.driver.reactive.ReactiveSession.class);
var reactiveSession2 = driver.session(org.neo4j.driver.reactivestreams.ReactiveSession.class);
var reactiveSession3 = driver.session(org.neo4j.driver.reactive.RxSession.class);

The following methods have been deprecated:

asyncSession
reactiveSession

Driver's TypeSystem is now accessible via TypeSystem.getDefault().

⭐ New Features

Introduce new session instantiation methods #1326
Introduce new Reactive Streams session #1325
Add getInstance to TypeSystem #1323

👏 Improvements

Update changelog location in README #1318
Update examples #1322
Add versioning information to readme #1327

🔧 Dependency Management

Update dependencies #1328

`v5.1.0`

This is a refinement release that brings several general improvements and dependency updates.

👏 Improvements

Delete superflous subsitutions #1312
Make container runtime expected in build environment #1315

✅ Testkit

Pin testkit version to 5.0 #1313

🔧 Dependency Management

Update dependencies #1316

`v5.0.0`

This release brings news features, general improvements and dependency updates.

The driver has been upgraded to Java 17 and it is the baseline Java version for this release.

The org.neo4j.driver:neo4j-java-driver artifact no longer includes shaded Netty and Project Reactor dependencies and replaces the org.neo4j.driver:neo4j-java-driver-slim introduced in 4.4 series.

A new org.neo4j.driver:neo4j-java-driver-all artifact includes shaded Netty and Project Reactor dependencies dependencies and is similar to the original packaging of the org.neo4j.driver:neo4j-java-driver before this update.

The org.neo4j.driver:neo4j-java-driver includes an explicit module declaration for Java Platform Module System (JMPS). The module name remains unchanged.

A new ReactiveSession has been introduced that includes API improvement and is based on Java Flow API. The RxSession has been deprecated.

A RetryableException marker interface has been introduced to enable easier checking of retryable driver exceptions.

A new experimental BookmarkManager feature has been introduced to allow simpler bookmark management, including multi-session level. This is an opt-in feature that is available via SessionConfig.

See the lists below for more details and links to updates.

⭐ New Features

Introduce BookmarkManager #1285 #1290 #1291 #1292 #1296
Add support for sending datetime values in UTC #1247
Add 5.0 changelog to README #1232
Make BasicPullResponseHandler support emitting signals in and out lock #1233
Deprecate GraphDatabase.routingDriver #1239
Add licenses verification #1238
Update tests using dbms.listTransactions() #1244
Add transaction interruption support for internal use #1242
Add support for multiple certificate files #1153
Micrometer metrics #1137
Add support for Bolt 5 #1181
Add exceptions to numeric id accessors in nodes and relationships #1192
Introduce new managed transaction methods and deprecate existing ones #1196
Introduce new reactive session with updated API #1208 #1295
Update bookmarks API #1211
Add RetryableException interface #1219

👏 Improvements

Update to Java 17 #1264
Update native-image.properties #1265
Update Neo4j build-resources and delete build/notice-asl-prefix.txt #1272
Defer unknown zone information failures to datetime value access stage #1273
Enable compilation failures on warnings #1275 #1276 #1277 #1279 #1302
Add Java module declaration for neo4j-java-driver #1274
Update RevocationStrategy name to RevocationCheckingStrategy #1283
Delete deprecated routingDriver #1289
Add final to public API #1293
Update shouldExposeResultSummaryForExplainQuery test assertions #1299
Turn off hostname verification for trustAllCertificates TrustStrategy #1301
Wrap checked exceptions when rethrowing async exception #1245
Delete Neo4jException.neo4jErrorCode and update documentation #1249
Update Neo4jSettings for 5.0 server #1254
Migrate tests depending on Boltkit to use Docker #1256
Remove null handling for Node/Relationship Ids #1240
Do not allow mixing UTC and legacy datetime and throw ProtocolException on unknown struct types #1260
Turn off UTC tests until server implementation is available #1262
Update Java driver to 5.0 #1099
Exclude US/Pacific-New from randomized timezones #1105
fix: Check for equality of value instead of equality of instance #1100
Update readme to include command for running Testkit test #1106
Allow tx timeout to be 0 or null #1108
Add transaction close support to async and reactive APIs #1119
Remove deprecated ServerVersion #1126
Delete InitMessage and RunMessage #1129
Make MapAccessorWithDefaultValue extend MapAccessor #1148
Delete Session.reset #1149
Delete ConfigBuilder.withRoutingFailureLimit and ConfigBuilder.withRoutingRetryDelay #1151
Permit dev agent suffix in tests and update password management #1159
Update tests to reflect breaking changes in 5.0 #1163
Add safety checks to Config.TrustStrategy.trustCustomCertificateSignedBy #1172
Add substitutions for DriverFactory#getOrCreateMetricsProvider #1189
Add ability of checking if result handle is open #1194
Fix more test that fail due to cypher deprecation removals #1167
Avoid TrustManagerFacotry.init(ManagerFactoryParameters var1) if no OSCP has been configured #1168
Throw ProtocolException when QueryType is unknown #1193
Migrate LoadCSVIT to CALL {} IN TRANSACTIONS for newer server #1200
Expose transaction open status in AsyncTransaction and RxTransaction #1199
Fix server configuration affecting 5.0 builds #1212
Migrate RoutingExamplesIT to Testcontainers #1215
Update LoadCSVIT.shouldLoadCSV to work with 5.0 #1216
Add Pacific/Kanton to EXCLUDED_ZONE_IDS in tests #1217
Add Asia/Gaza to EXCLUDED_ZONE_IDS in tests #1218
Add Antarctica/Macquarie to EXCLUDED_ZONE_IDS in tests #1221
Stop shading dependencies in neo4j-java-driver package #1222
Migrate java-driver-rx-tck #1224
Add TCK tests for ReactiveResult and ReactiveResult Record #1226
Add spotless-maven-plugin for Java formatting #1227
Add flag for CausalClusteringStressIT #1220

✅ Testkit

Skip more unknown timezone tests #1269
Reduce build log sizes by removing download progress stats #1271
Add TestKit test skip #1281
Unskip test_trusted_ca_correct_hostname #1251
TestKit backend: add full support for temporal types #1257
Add Temporary:CypherPathAndRelationship support in Testkit backend #1107
Add Temporary:FullSummary support in Testkit backend #1109
Add Temporary:ResultKeys support in Testkit backend #1113
TestKit: send error message or driver creation error #1125
Add Result.peek support to TestKit back end #1110
Un-skip test_should_reject_server_using_verify_connectivity_bolt_3x0 in async backend #1127
Enable Optimization:EagerTransactionBegin #1150
Add support for Feature:API:Driver.IsEncrypted Testkit feature #1152
Add support for Feature:TLS:1.3 Testkit feature #1155
TestKit tx lifetime #1154
Remove 4.0 Testkit feature flag #1135
Fix missing exception conversion in TestKit backend #1175
Remove "Temporary:ConnectionAcquisitionTimeout" TestKit flag #1179
Add support for Optimization:ImplicitDefaultArguments feature #1201
TestKit: remove temporary feature flags #1206
Implement result single in sync and async Testkit backends #1210
Skip test_trusted_ca_correct_hostname test #1213
Migrate ITs to Testkit #1214

🔧 Dependency Management

Update dependencies #1304 #1261 #1243 #1130 #1178 #1229
Upgrade to Logback Classic 1.2.8 for test dependencies #1104
Update SVM tools to 21.3.0 #1122
Update mockito-core to 4.3.1 #1160
Update netty-handler to 4.1.75.Final #1190

`v4.4.19`

This is a refinement release that brings dependency updates.

🔧 Dependency Management

Update dependencies #1594

`v4.4.18`

This is a refinement release that brings dependency updates.

🔧 Dependency Management

Update dependencies #1557

`v4.4.17`

This is a refinement release that brings dependency updates.

🔧 Dependency Management

Update dependencies #1553

`v4.4.16`

This is a refinement release that brings dependency updates.