Announce: sbt 1.3.9

I’m happy to announce sbt 1.3.9 patch release is available. Full release note is here -

How to upgrade

Normally changing the project/ to


would be ok. However, given that the release may contain fixes to scripts and also because your initial resolution would be faster with *.(zip|tgz|msi) that contains all the JAR files, we recommend you use the installer distribution. They will be available from SDKMAN etc.

:warning:Notes about Homebrew

Homebrew maintainers have added a dependency to JDK 13 because they want to use more brew dependencies brew#50649. This causes sbt to use JDK 13 even when java available on PATH is JDK 8 or 11.

To prevent sbt from running on JDK 13, install jEnv or switch to using SDKMAN.


For more details please see


sbt 1.3.9 was brought to you by 7 contributors. Eugene Yokota (eed3si9n), Alex Zolotko, Dale Wijnand, Jason Pickens, Margus Sipria, Peter Fraenkel, and Xenon Abe. Thank you!

Thanks to everyone who’s helped improve sbt and Zinc 1 by using them, reporting bugs, improving our documentation, porting builds, porting plugins, and submitting and reviewing pull requests.

For anyone interested in helping sbt, there are many avenues for you to help, depending on your interest. If you’re interested, Contributing, “help wanted”, “good first issue” are good starting points. If you have ideas let us know on Lightbend Discuss.

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