What's Changed

Testcontainers 1.16.0 is here! 🎉

This release brings many small fixes and improvements; among them:

Better M1 Mac compatibility

Users of M1 Mac will be pleased to know that Testcontainers now falls back to pulling x86_64 images when ARM64 images are unavailable, meaning that Docker's QEMU compatibility mode will be used to run the image. It's not perfect - not every image runs under QEMU. However, this allows Testcontainers users with M1 Macs to use more images than they could previously.

If possible, users should use recently published images for their dependencies which have a native ARM64 variant, rather than relying on QEMU emulation.

Startup performance and reliability improvements

Some issues affecting container startup time and reliability (especially with Docker for Windows) have been fixed.

Additionally, this release uses the latest version of docker-java and uses an Apache HttpClient5 transport by default. This resolves bugs encountered by some users when the previous default transport (okhttp) relating to image pulling.

As always, thank you to our many users and contributors!

🚀 Features & Enhancements

• Fallback to x86 image if image pulling fails (#4290) @bsideup
• Spock Testcontainers annotation is now inherited (#4053) @tlefevre
• Use Apache HttpClient5 transport as the default (#4287) @bsideup
• Remove visible assertions dependency (#4010) @bsideup
• Couchbase: Add support for community edition of couchbase server (#4221) @Gerschtli
• Couchbase: Update to latest version, add flushEnabled flag (#4041) @Gerschtli
• Only publish exposed ports (#4122) @rnorth
• Allow DOCKER_HOST and related settings to be set in ~/.testcontainers.properties (#4118) @rnorth
• Use implicit strategy when docker.host configuration is set (#4175) @rnorth
• Improve logging in InternalCommandPortListeningCheck (#2984) (#3001) @vcvitaly

🐛 Bug Fixes

• Remove withPublishAllPorts from Ryuk and stabilize containerInfo content on start (#4263) @kiview
• Allow for docker timestamps with timezone offsets (#4073) @candrews
• Fix KafkaContainer with multiple networks defined (#4213) @DennisFederico
• Fixed potential NPE in MountableFile (#4193) @fkorotkov
• Improve log messages when database container test query fails (#3015) @vcvitaly

📖 Documentation

• Remove GitHub Sponsors button (#4217) @rnorth
• Add @oleg-nenashev as backer, reference @jenkinsci and @cloudbees as adopters (#4170) @oleg-nenashev
• Docs: Use testImplementation instead of deprecated testCompile (#4054) @slovdahl
• Docs: Add Backbase as Bronze sponsor (#4039) @torrespro

🧹 Housekeeping

• Split Windows CI into core and non-core steps (#4293) @rnorth
• Upgrade alpine images for better M1 compatibility (#4291) @rnorth
• Switch from using Travis to GitHub Actions for release (#3434) @rnorth
• Remove stalebot (#4216) @rnorth
• Cleanup japicmp excludes (#4192) @bsideup
• Update to Gradle 7 (#4171) @bsideup
• Add combine-prs workflow (#4176) @rnorth
• Bump actions/cache from 2.1.3 to 2.1.6 (#4162) @dependabot
• Combined dependencies PR (#4135) @rnorth
• Only run update-* and release-drafter on original repository, not on forks (#4104) @mrotteveel
• Reduce dependabot bump rate to monthly (#4083) @rnorth
• Use up-to-date MySQL docker images (#4059) @rnorth

📦 Dependency updates

• Remove visible assertions dependency (#4010) @bsideup
• Update docker-java to 3.2.11 (#4220) @bsideup
• Update to Gradle 7 (#4171) @bsideup