4.8.1

What's Changed

🐛 Bug Fixes

• fix: Compute correct relative Dockerfile file path (#1558) @HofmeisterAn

4.8.0

What's Changed

Thank you to all the contributors 🙌.

In version 4.7.0, we noticed that the reuse hash could change depending on the order of dictionary values. This has been fixed to ensure that dictionary values are processed in a consistent order when generating the reuse hash. As a result, the reuse hash will likely change again with 4.8.0.

Wait strategies now default to the Running mode. This mode expects the container to remain running throughout startup. If the container exits unexpectedly, Testcontainers will throw a ContainerNotRunningException that includes the exit code and container logs.

The container startup callback now includes an additional overload that provides the actual container configuration. If you implement IContainerBuilder<TBuilderEntity, TContainerEntity>, you need to add the container configuration (e.g., IContainerConfiguration) as a third generic type constraint to IContainerBuilder.

IContainerBuilder.WithResourceMapping and IContainer.CopyAsync now include two new optional arguments: uid and gid. If you do not need to specify those, use named arguments for the existing parameters: fileMode or ct.

⚠️ Breaking Changes

• fix: Generate consistent reuse hashes by sorting dictionary keys (#1554) @0xced
• feat: Throw if container not running (#1550) @HofmeisterAn
• feat: Add startup callback overload with configuration type (#1547) @HofmeisterAn
• feat: Support UID/GID when copying files (#1531) @HofmeisterAn

🚀 Features

• feat: Throw if container not running (#1550) @HofmeisterAn
• feat: Add startup callback overload with configuration type (#1547) @HofmeisterAn
• feat: Add Docker build context (#1536) @HofmeisterAn
• feat: Add WithTarget(string) to image builder (#1534) @HofmeisterAn
• feat: Resolve Dockerfile ARGs pulling base images (#1532) @HofmeisterAn
• feat: Support UID/GID when copying files (#1531) @HofmeisterAn
• feat(Keycloak): Add API to import a realm configuration file (#1526) @VladislavAntonyuk

🐛 Bug Fixes

• fix: Generate consistent reuse hashes by sorting dictionary keys (#1554) @0xced
• fix(MongoDb): Use db.runCommand({hello:1}) do detect readiness (#1548) @HofmeisterAn
• fix(Papercut): Pin version 7.0 and set new HTTP and SMTP ports (#1549) @HofmeisterAn
• fix(Pulsar): Wait for default namespace (#1539) @HofmeisterAn
• fix(Keycloak): Wait until user created (#1535) @HofmeisterAn

📖 Documentation

• docs: Remove obsolete UntilOperationIsSucceeded wait strategy example (#1551) @ascott18
• docs: Fix link to Ryuk in IContainerBuilder.WithAutoRemove code comment (#1546) @hojmark

🧹 Housekeeping

• chore: Don't create a static field in a generic class (#1555) @HofmeisterAn
• chore: Add test certificates to common project (#1545) @HofmeisterAn
• chore: Update CI workflow to ubuntu-24.04 (#1544) @HofmeisterAn
• chore: Collect test projects at CI runtime (#1543) @HofmeisterAn
• chore: Fix grammar (#1542) @Smoothengineer
• chore: Bump Ryuk (#1537) @HofmeisterAn
• chore: Remove obsolete wait strategy: UntilPortIsAvailable(int) (#1528) @HofmeisterAn
• feat: Prepare next release cycle (4.8.0) (#1523) @HofmeisterAn

4.7.0

What's Changed

This release doesn't introduce breaking changes to the public API, but it isn't binary compatible due to necessary internal changes. Make sure to update all related packages (Testcontainers modules) to the same version. See more details here. Thanks to all contributors 👏.

⚠️ Breaking Changes

• feat(Kafka): Add KRaft support (#1353) @SukharevAndrey
• feat: Add ability to override enumerable builder values (#1506) @HofmeisterAn

🚀 Features

• feat: Add wait strategy to check external (TCP) port availability (#1495) @WhiteTomX
• feat(Kafka): Add KRaft support (#1353) @SukharevAndrey
• feat: Relax Base64 auth provider and ignore path segments in Docker registry URLs (#1516) @HofmeisterAn
• feat: Add ability to override enumerable builder values (#1506) @HofmeisterAn
• feat(Elasticsearch): Return HTTP connection string if security is disabled (#1494) @HofmeisterAn
• fix: Add tooling to inherit XML docs (#1493) @HofmeisterAn
• feat: Resolve .slnx (solution) file in common directory paths (#1492) @alexander-jesner-AP
• feat: Support getting all mapped ports (#1485) @HofmeisterAn
• feat: Add named pipe connection timeout custom configuration (#1480) @HofmeisterAn

🐛 Bug Fixes

• feat(Kafka): Add KRaft support (#1353) @SukharevAndrey
• fix: Send valid HTTP test responses (#1505) @HofmeisterAn
• fix: Use null-conditional operator to access FinishedAt (#1499) @HofmeisterAn
• fix: Remove timeout that kills PID 1 when stopping a container (#1481) @HofmeisterAn
• fix(Pulsar): Wait until the consumer becomes connected (#1467) @HofmeisterAn
• fix(ServiceBus): Remove container lifecycle overrides (#1465) @HofmeisterAn

📖 Documentation

• docs: Explain how to substitute the Docker Hub registry (#1503) @HofmeisterAn
• docs: Extend example copying files to a container (#1487) @cimnine

🧹 Housekeeping

• chore: Change Kafka vendor configuration from class to interface (#1519) @HofmeisterAn
• chore: Bump Docker.DotNet version to 3.128.5 (#1511) @HofmeisterAn
• chore: Build a single project instead of the whole solution (#1502) @HofmeisterAn

4.6.0

What's Changed

This is a patch release (but the minor version was already set). It fixes a bug in our Docker.DotNet fork where a wrong HTTP Connection header break Podman and possibly other environments. Shipped a quick fix. Thanks again to @ahaeber and @victor-lambret for the help.

🐛 Bug Fixes

• chore: Bump Docker.DotNet version to 3.128.3 (#1462) @HofmeisterAn

🧹 Housekeeping

• chore: Bump Docker.DotNet version to 3.128.3 (#1462) @HofmeisterAn

4.5.0

What's Changed

Big thanks to everyone who contributed to this release 🤜🤛.

🚀 Features

• feat: Add OpenSearch module (#1395) @digital88
• feat: Add Typesense module (#1446) @brainded
• feat: Add Task<ExecResult> extension method ThrowOnFailure (#1448) @HofmeisterAn
• feat: Throw DockerUnavailableException when Docker is not available (#1308) @0xced
• feat: Improve error reporting when loading the Docker configuration file (#1263) @0xced
• feat: Add a wait strategy that waits until the ADO.NET database is available (#1401) @0xced
• feat: Add Ollama module (#1099) @frankhaugen
• feat: Allow canceling container start in xUnit.net v3 fixtures (#1431) @TheConstructor
• fix(EventHubs): Support default consumer group name (#1432) @scrocquesel-ml150
• feat: Add Lowkey Vault module (#1344) @Xor-el
• feat(ServiceBus): Add builder API to upload config file (#1424) @chasewallis

🐛 Bug Fixes

• fix: Set container created, started, stopped time from inspect response (#1455) @HofmeisterAn
• fix(EventHubs): Change predicate that it does not always evaluate to true (#1433) @HofmeisterAn
• fix(EventHubs): Support default consumer group name (#1432) @scrocquesel-ml150

📖 Documentation

• docs(ClickHouse): Add example (#1421) @digital88
• docs: Mention the xUnit.net v3 module (package) (#1442) @TheConstructor

🧹 Housekeeping

• chore: Add ExecResult serializable test data (#1456) @HofmeisterAn
• chore: Remove Sonar findings (#1450) @HofmeisterAn
• chore: Replace Cake .NET Tool with Cake Frosting (#1437) @0xced
• chore: Update test-framework to xUnit.net v3 (#1441) @TheConstructor
• chore: Bump Docker.DotNet version to 3.128.1 (#1443) @HofmeisterAn
• chore: Add xUnit.net v3 tests (#1430) @TheConstructor
• chore: Bump CI .NET SDK and Cake version (#1434) @HofmeisterAn

4.4.0

What's Changed

Time for a new release! Big thanks to everyone who helped out with this one. It's got some awesome new features and fixes 😎. Seriously, I can't thank you enough. This wouldn't be possible without your ongoing support 🙏.

🚀 Features

• feat: Add Socat container implementation (#1416) @eddumelendez
• feat(Keycloak): Support admin bootstrapping for version 26 onwards (#1400) @paulomorgado
• feat: Add Qdrant module (#1149) @russcam
• feat(EventHubs, ServiceBus): Replace wait strategy with HTTP health check (#1398) @scrocquesel-ml150
• fix: Reflect Unix file mode when building tarball from .NET 7 onwards (#1397) @kfarnung

🐛 Bug Fixes

• fix(Pulsar): Set memory limits (#1420) @HofmeisterAn
• fix: Add Docker Hub image name prefix to image builder API WithName(IImage) (#1413) @HofmeisterAn
• fix: Reflect Unix file mode when building tarball from .NET 7 onwards (#1397) @kfarnung
• fix: Retrieve logs since CreatedTime for UntilMessageIsLogged wait strategy (#1384) @0xced

📖 Documentation

• docs: Bump testcontainers/helloworld image in docs to version 1.2.0 (#1419) @VishnuJin
• docs(ActiveMq): Add example (#1415) @digital88
• docs: Add binding redirects doc for .NET framework (#1414) @HofmeisterAn
• docs: Add Bitbucket Pipelines configuration (#1402) @boeckie-xenopz
• docs(EventHubs, ServiceBus): Add example (#1396) @HofmeisterAn
• docs(Cassandra): Add example (#1382) @gavindekock

🧹 Housekeeping

• fix(Pulsar): Set memory limits (#1420) @HofmeisterAn
• chore: Add wrapper module for Google Cloud modules (#1411) @digital88
• chore: Use Docker Compose to host documentation locally (#1410) @digital88
• feat(EventHubs, ServiceBus): Replace wait strategy with HTTP health check (#1398) @scrocquesel-ml150

4.3.0

What's Changed

Thank you to all the contributors 🙌.

🚀 Features

• feat: Add Apache Cassandra module (#1367) @gavindekock
• feat(Oracle): Add support for WithDatabase(string) for Oracle 18 and onwards (#1321) @0xced
• feat: Add EventHubs module (#1373) @HofmeisterAn
• feat: Add Db2 module (#1237) @kevin0x90

🐛 Bug Fixes

• fix(MongoDb): Evaluate replica set status in wait strategy (#1369) @HofmeisterAn

🧹 Housekeeping

• chore: Update examples implementations (#1379) @HofmeisterAn
• chore: Remove SharedContainerInstance and use ContainerFixture instead (#1378) @0xced
• chore: Remove code smells and bump dependencies (#1374) @HofmeisterAn
• chore: Add support for macOS in Testcontainers.Db2.Tests (#1371) @0xced
• chore: Add WithAcceptLicenseAgreement(bool) to container builder (#1370) @HofmeisterAn
• chore: Set PackageLicenseExpression property to MIT (#1368) @ax-meyer

4.2.0

What's Changed

Thanks for all the contributions. Great first release of the year ❤️.

🚀 Features

• feat: Add SFTP module (#1362) @wim07101993
• feat(ServiceBus): Add support to use existing MSSQL container instances (#1335) @lgcmotta
• feat: Add Weaviate module (#1356) @roji
• fix(Pulsar): Support Apache Pulsar 4 (#1355) @entvex
• feat: Add network support to the Kafka container (#1316) @SebastienDegodez
• feat: Add pausing and unpausing container (#1315) @stefannikolei
• feat: Add NAT driver network configuration (#1328) @HofmeisterAn

🐛 Bug Fixes

• fix(Redpanda): Add missing command-line arguments to the startup script (smp, memory) (#1364) @RobotechUSA
• chore: Remove binding of ports to IPv4 only (#1363) @daviian
• feat: Add network support to the Kafka container (#1316) @SebastienDegodez
• fix: Load PKCS#12 correctly for mTLS on Windows in .NET 9 (#1320) @jvmdc

🧹 Housekeeping

• fix(Redpanda): Add missing command-line arguments to the startup script (smp, memory) (#1364) @RobotechUSA
• chore: Remove binding of ports to IPv4 only (#1363) @daviian
• chore: Algin module configurations (#1357) @HofmeisterAn
• fix: Make Testcontainers.XunitV3 publishable (#1317) @0xced

4.1.0

What's Changed

This is likely the last release for this year, unless urgent fixes become necessary.

I want to mention a change introduced in the last major release, where we refactored the IImage interface. As part of this update, we removed obsolete properties and overloaded constructors. If you previously used an overload other than DockerImage(string), please ensure you pass the correct values to the constructor.

Additionally, we replaced Docker.DotNet with our own fork to keep the Docker Engine API up to date. Our goal is to improve reliability and performance while offering a more developer-friendly and convenient client. If you depend on a Docker client for .NET, we encourage you to contribute to this project ❤️.

On a personal note, I wish everyone a peaceful and lovely holiday season. Take this time to rest, connect with loved ones, and recharge for the new year. Take care.

🚀 Features

• feat: Add Azure Service Bus module (#1309) @HofmeisterAn
• feat: Set ryuk.container.privileged default value to true (#1313) @HofmeisterAn
• feat: Remove net6.0 and add net9.0 TFM (#1311) @HofmeisterAn
• feat: Introduce a new Testcontainers.Xunit package (#1165) @0xced

🐛 Bug Fixes

• fix: Postpone exception in DbContainerFixture to match the behavior of ContainerFixture (#1310) @0xced
• fix: Do not pre-pull scratch image (#1304) @HofmeisterAn
• fix: Add HTTP wait strategy to prevent race-condition in WaitUntilHttpRequestIsSucceededTest (#1299) @HofmeisterAn
• fix: Add HTTP wait strategy to prevent race-condition in TarOutputMemoryStreamTest (#1297) @HofmeisterAn
• fix: Prepend Docker Hub namespace to repository (#1287) @HofmeisterAn

📖 Documentation

• docs: Add low level API access (#1300) @HofmeisterAn

🧹 Housekeeping

• feat: Add Respawn example (#1307) @HofmeisterAn
• chore: Add test to ensure that all test projects are configured for CI (#1305) @0xced
• chore: Run each test project on a separate runner (#1295) @HofmeisterAn
• chore: Replace Docker.DotNet with the Testcontainers organization's build (#1292) @HofmeisterAn

4.0.0

What's Changed

Thanks so much for all the effort you put into this release 🙌. We are continuing to align Testcontainers for .NET with other language implementations and working on improving the domain-specific language.

We have updated the IImage interface to follow the domain-specific language with the correct property names. The table below shows the changes. We tried to make the transition as smooth as possible, but be aware that relying on the Repository property might cause issues since it now resolves a different value than before. We have kept the old properties, marked them as obsolete, and provided guidance on how to migrate.

	Actual	Expected (New)
Registry	-	myregistryhost:5000
Repository	myregistryhost:5000/fedora	fedora/httpd
Name	httpd	-
Tag	version1.0	version1.0
Digest	-	sha256:37a3b014d320...
GetHostname()	myregistryhost:5000	myregistryhost:5000

⚠️ Breaking Changes

• fix: Bump MSSQL image version, remove Azure SQL Edge and Papercut module (#1265) @HofmeisterAn
• feat: Align IImage properties with Docker DSL (#1256) @HofmeisterAn

🚀 Features

• feat: Use exec to replace current shell with the Kafka process (as ENTRYPOINT) (#1282) @jasoncouture
• feat: Add getter for Azurite blob, queue and table endpoint (#1278) @pregress
• feat: Reintroduce Papercut module (#1268) @TechLiam
• feat: Add Neo4j Enterprise Edition support (WithEnterpriseEdition(bool)) (#1269) @Sossenbinder
• feat: Support digest in IImage, DockerImage and in the WithImage(string) implementation (#1249) @Kielek
• feat: Align IImage properties with Docker DSL (#1256) @HofmeisterAn
• feat: Change visibility of AccountName and AccountKey to public, move to AzuriteBuilder (#1258) @mikecole
• feat: Get Docker endpoint from Docker context (#1235) @0xced

🐛 Bug Fixes

• fix: Bump MSSQL image version, remove Azure SQL Edge and Papercut module (#1265) @HofmeisterAn
• fix: Throw exception if Docker resource does not exist instead of silently ignoring it (#1254) @0xced

🧹 Housekeeping

• fix: Do not run reusable resource tests in parallel (#1267) @HofmeisterAn